BY1K Screw Clamp Terminal Blocks Guide

BY1K Screw Clamp Terminal Blocks
BY1S Spring Clamp Terminal Blcoks
BY Series
Terminal Blocks

Ratings / Applicable Wires
Part No.
IEC/EN UL/c-UL
Terminal
Screw SizeInsulation Voltage
Rated Current
Wire Size (mm2
)
Solid /Stranded
Tightening Torque
(N·m)
Insulation Voltage
Rated Current
Wire Size (AWG)
Solid/Stranded
Tightening Torque
(N·m)
Standardterminalblock
BY1K-2.5N 800V 24A 0.5 to 2.5 0.4 to 0.6 600V 20A 28 to 12 0.56 M2.6
BY1K-4N 800V 32A 0.5 to 4.0 0.5 to 1.0 600V 30A 22 to 10 1.13 M3
BY1K-6N 800V 57A 0.5 to 6.0 0.8 to 1.6 600V 50A 26 to 8 1.58 M4
BY1K-10N 800V 76A 0.5 to 10 1.2 to 2.4 600V 65A 24 to 6 2.15 M4
BY1K-16 1,000V 76A 2.5 to 16 2.0 to 4.0 600V 78A 14 to 4 3.5 M5
BY1K-35 1,000V 125A 4.0 to 35 2.5 to 5.86 1,000V 114A 10 to 2 5.8 M6
BY1K-50 1,000V 150A 16 to 50 4.6 to 6.09 1,000V 150A 6 to 1/0 (Note) 6.0 M6
BY1K-95 1,000V 232A 35 to 95 8.0 to 17.25 1,000V 230A 2 to 4/0 (Note) 16.8 M8
Groundterminalblock
BY1K-2.5NPE 0.2 to 2.5 0.46 to 0.6 600V 28 to 12 0.46 to 0.6 M2.6
BY1K-4NPE 0.2 to 4.0 0.6 to 0.7 600V 26 to 10 0.6 to 0.7 M3
BY1K-6NPE 0.2 to 6.0 1.15 to 1.6 600V 26 to 8 1.15 to 1.6 M3.5
BY1K-10NPE 0.2 to 10 1.5 to 1.8 600V 24 to 6 1.5 to 1.8 M4
BY1K-16PE 2.5 to 16 2.07 to 4.02 14 to 6 4.0 M5
BY1K-35PE 4.0 to 35 2.5 to 5.86 10 to 2 6.2 M6
BY1K-50PE 16 to 50 6.09 to 8.05 6 to 1/0 (Note) 6.1 M6
BY1K-95PE 35 to 95 6.9 to 10.35 2 to 4/0 (Note) 12.0 M8
Note: Stranded wire only
Compact European Style Terminal Blocks!
Material
Parts Name Material (Coating)
Housing Polyamide (UL94V-0)
Bus bar Copper alloy (Tin coated)
Screw Steel (Zinc plated trivalent chromate)
Cage clamp Steel (Zinc plated trivalent chromate)
Ground contact bracket
(Ground terminal blocks only)
Copper alloy (Tin coated)
Ground support bracket
Steel (Zinc plated trivalent chromate)
• Mounting space reduced by 50% compared to conventional products.
• Wide variety to choose from. Standard and ground terminal blocks
available.
• Various wire sizes can be connected.
• Simple wire connection. Easy expansion of terminal blocks.
• Easy ground connection to DIN rail (ground terminal block).
• Mounts on a 35-mm-wide DIN rail.
• UL/c-UL recognized and EN compliant.
Applicable Standards Mark Certification Organization/File No.
UL1059
CSA C22.2 No.158
UL/c-UL Recognition
File No. E78117
IEC/EN60947-7-1
(Standard terminal block)
IEC/EN60947-7-2
(Ground terminal block)
EU Low Voltage Directive
General Ratings
Dielectric Strength (Note) 2500V AC, 1 minute
Insulation Resistance (Note)
2000MΩ minimum
(500V DC megger)
Vibration Resistance
Frequency: 5 to 55 Hz
Amplitude: 0.5 mm
Shock Resistance 1000m/s2
Operating Temperature –25 to +55°C (no freezing)
Storage Temperature –25 to +70°C (no freezing)
Operating Humidity 45 to 85% RH (no condensation)
Note: Except ground terminal blocks.
PE
Terminal
Jumper terminal (screw)
PE function ground terminal
Standard terminal block
Part No. Internal Connection
BY1K-2.5N
BY1K-4N
BY1K-6N
BY1K-10N
BY1K-16
BY1K-35
BY1K-50
BY1K-95
Ground terminal block
Part No. Internal Connection
BY1K-2.5NPE
BY1K-4NPE
BY1K-6NPE
BY1K-10NPE
BY1K-16PE
BY1K-35PE
BY1K-50PE
BY1K-95PE
PE
2

Screw Clamp Terminal Blocks All dimensions in mm.
Part No. BY1K-2.5N BY1K-4N BY1K-6N
Appearance /
Dimensions
See page 2 for
internal connection
diagram
Width: 5.1 mm
Weight: Approx. 6.2g
Width: 6.1 mm
Width: 8 mm
2.7
45.8
35.9
42.85.1
3.8
30.5
15.7
DIN Rail
WhenusingDINRail:47.0
M2.6 terminal
screw (slotted)
35.9
42.8
3.7
6.1
3.8
45.8
30.5
15.7
DIN Rail
M3 terminal
screw (slotted)
45.8
4.8
8.0
6.7
42.8
18.8
28.2
35.9
DIN Rail
M4 terminal
screw (slotted)
Ordering No. BY1K-2.5N BY1K-4N BY1K-6N
Package Quantity 100 100 50
Groundterminalblock
Part No. BY1K-2.5NPE BY1K-4NPE BY1K-6NPE
Appearance /
Dimensions
See page 2 for internal
connection diagram
Width: 5.2 mm
Width: 6.2 mm
Width: 8.2 mm
26.9
45.3
2.6
5.2
4.0
15.7
35.9
42.8
DIN Rail (BAP)
M2.6 terminal
screw (slotted)
M2.6
mounting
screw
(slotted)
45.3
3.3
6.2
4.0
15.7
35.9
42.8
26.9
DIN Rail (BAP)
M3 terminal
screw (slotted)
M3
mounting
screw
(slotted)
18.8
39.5
42.8
27.9
45.3
8.2
4.5
4.6
DIN Rail (BAP)
M3.5 terminal
screw (slotted) M4
mounting
screw
(slotted)
Ordering No. BY1K-2.5NPE BY1K-4NPE BY1K-6NPE
Standards IEC/EN UL/c-UL IEC/EN UL/c-UL IEC/EN UL/c-UL
Specification/Ratings
Insulation Voltage 800V (Note 1) 600V 800V (Note 1) 600V 800V (Note 1) 600V
Wire Size
(Solid/
Stranded )
Standard
terminal
block
0.5 to 2.5mm2
28 to 12AWG 0.5 to 4.0mm2
22 to 10AWG 0.5 to 6.0mm2
26 to 8AWG
Ground
terminal
block
0.2 to 2.5mm2
28 to 12AWG 0.2 to 4.0mm2
26 to 10AWG 0.2 to 6.0mm2
26 to 8AWG
Rated Current (Note 1) 24A 20A 32A 30A 57A 50A
Terminal Screw Size M2.6 M3
Standard terminal block: M4 Ground terminal
block: M3.5
Tightening
torque
Standard
terminal
block
0.4 to 0.6 N·m 0.56 N·m 0.5 to 1.0 N·m 1.13 N·m 0.8 to 1.6 N·m 1.58 N·m
Ground
terminal
block
0.46 to 0.6 N·m 0.46 to 0.6 N·m 0.6 to 0.7 N·m 0.6 to 0.7 N·m 1.15 to 1.6 N·m 1.15 to 1.6 N·m
Recommended Wire Strip
Length
8 to 10mm 8 to 10mm 10 to 12mm
Accessories
End Stop BY9Z-KEW35/2
End Plate (Note 1) BY9Z-KEP6
Marking Strip BY9Z-W5, BY9Z-W5Z-, BY9Z-W5K- BY9Z-W6, BY9Z-W6Z-, BY9Z-W6K-
DIN Rail (Note 2) BAA1000 (Aluminum), BAP1000 (Steel)
Jumper
(2,3,4,10 Pole)
(Note 3)
BY9Z-KQV-2.5/2, BY9Z-KQV-2.5/3
BY9Z-KQV-2.5/4, BY9Z-KQV-2.5/10
BY9Z-KQV-4/2, BY9Z-KQV-4/3
Note 1: Except ground terminal blocks.
Note 2: Use BAP1000 (steel) for ground terminal blocks.
Note 3: Cannot be used on ground terminal blocks.
3
BY1K Screw Clamp Termina Blocks

Screw Clamp Terminal Blocks All dimensions in mm.
Part No. BY1K-10N BY1K-16 BY1K-35
Appearance / Dimensions
connection diagram
Width: 10.0 mm
Width: 12.0 mm
Width: 16.0 mm
45.8
28.2
6.8
10.0
6.7
42.8
35.9
18.8
DIN Rail
M4 terminal screw
(slotted)
62.5
56.5
33.6
7.8
7.3
12.0
24.4
60.0
DIN Rail
M5 terminal screw
(slotted)
10.2
16.0
10.1
24.4
56.5
62.5
35.6
60.0
DIN Rail
M6 terminal screw
(slotted)
Ordering No. BY1K-10N BY1K-16 BY1K-35
Groundterminalblock
Part No. BY1K-10NPE BY1K-16PE BY1K-35PE
connection diagram
Width: 10.2 mm
Width: 12.2 mm
Weight: Approx. 54g
Width: 16 mm
18.8
39.5
42.8
45.3
27.9
10.2
5.6
5.5
DIN Rail (BAP)
M4 terminal screw
(slotted) M4
mounting
screw
(slotted)
56.6
8.0
7.3
12.2
61.1
33.5
24.4
DIN Rail (BAP)
M5 terminal screw
(slotted)
M3
mounting
screw
(slotted) 56.6
61.1
10.3
10.2
16.0
33.5
24.4
DIN Rail (BAP)
M6 terminal screw
(slotted)
M3
mounting
screw
(slotted)
Ordering No. BY1K-10NPE BY1K-16PE BY1K-35PE
Standards IEC/EN UL/c-UL IEC/EN UL/c-UL IEC/EN UL/c-UL
Insulation Voltage 800V (Note 1) 600V 1,000V (Note 1) 600V (Note 1) 1,000V (Note 1) 1,000V (Note 1)
Wire Size
(Solid/
Stranded )
Standard
terminal block
0.5 to 10 mm2
24 to 6AWG 2.5 to 16 mm2
14 to 4AWG 4.0 to 35 mm2
10 to 2AWG
Ground
terminal block
0.2 to 10 mm2
24 to 6AWG 2.5 to 16 mm2
14 to 6AWG 4.0 to 35 mm2
10 to 2AWG
Rated Current (Note 1) 76A 65A 76A 78A 125A 114A
Terminal Screw Size M4 M5 M6
Tightening
Torque
Standard
terminal block
1.2 to 2.4 N·m 2.15 N·m 2.0 to 4.0 N·m 3.5 N·m 2.5 to 5.86 N·m 5.8 N·m
Ground
terminal block
1.5 to 1.8 N·m 1.5 to 1.8 N·m 2.07 to 4.02 N·m 4.0 N·m 2.5 to 5.86 N·m 6.2 N·m
Length
10 to 12 mm 15 to 17 mm 16 to 18 mm
Accessories
End Stop BY9Z-KEW35/2 BY9Z-KEW35/1
End Plate (Note 1) BY9Z-KEP6 BY9Z-KEP2
Marking Strip BY9Z-W6, BY9Z-W6Z-, BY9Z-W6K-
BY9Z-W6, BY9Z-W6Z-, BY9Z-W6K-
BY9Z-W8, BY9Z-W8Z-, BY9Z-W8K-
Jumper
(2,3,4,10 Pole) (Note 3)
BY9Z-KQV-16/4
BY9Z-KQV-35/4
4

Screw Clamp Terminal Blocks
Part No. BY1K-50 BY1K-95
connection diagram
Width: 20.0 mm
Weight: Approx. 106g
Width: 25.0 mm
12.8
20.0
27.0
13.5
70.5 6.5
74.4
41.0
32.5
DIN Rail
M6 terminal screw
(Hexagon socket
head cap)
80.0
88.3
16.8
25.0
32.0
19.6
48.7
38.0
6.5
DIN Rail
M8 terminal screw
(Hexagon socket
head cap)
Ordering No. BY1K-50 BY1K-95
Package Quantity 10 10
Groundterminalblock
Part No. BY1K-50PE BY1K-95PE
connection diagram
Width: 20.0 mm
Width: 25.0 mm
Weight: Approx. 278g
M6 mounting screw
(cross recessed head + slotted head)
70.5
40.0
70.0
12.8
20.0
27.0
12.3
32.5
M6 terminal screw
(Hexagon socket
head cap)
DIN Rail (BAP)
16.3
25.0
32.0
19.8
80.0
82.6
38.0
49.0
DIN Rail (BAP)
M6 mounting screw
(cross recessed head + slotted head)
M8 terminal screw
(Hexagon socket
head cap)
Ordering No. BY1K-50PE BY1K-95PE
Package Quantity 10 10
Standards IEC/EN UL/c-UL IEC/EN UL/c-UL
Insulation Voltage 1,000V 1,000V 1,000V 1,000V
Wire Size
(Solid/
Stranded )
Standard
terminal block 16 to 50 mm2
6 to 1/0AWG (Stranded wire only) 35 to 95 mm2
2 to 4/0AWG (Stranded wire only)
Ground
terminal block 16 to 50 mm2
6 to 1/0AWG (Stranded wire only) 35 to 95 mm2
2 to 4/0AWG (Stranded wire only)
Rated Current (Note 1) 150A 150A 232A 230A
Terminal Screw Size M6 M8
Tightening
torque
Standard
terminal block 4.6 to 6.09 N·m 6.0 N·m 8.0 to 17.25 N·m 16.8 N·m
Ground
terminal block 6.09 to 8.05 N·m 6.1 N·m 6.9 to 10.35 N·m 12.0 N·m
Length 20 to 25 mm Standard terminal block: 30 to 35 mm Ground terminal block: 25 to 30 mm
Accessories
End Stop BY9Z-KEW35/1
End Plate (Note 1) —
Marking Strip BY9Z-W6, BY9Z-W6Z-, BY9Z-W6K-, BY9Z-W8, BY9Z-W8Z-, BY9Z-W8K-
Jumper
(2,3 Pole) (Note 3) BY9Z-KQV-50/2, BY9Z-KQV-50/3 —
5

Easy wiring with just one screwdriver.
Spring clamp connections promote reduced wiring time.
• Spring clamp terminal blocks ensure high contact reliability with
different wire shapes and sizes.
• Standard and ground terminal blocks mounts on 35 mm DIN rail
allowing easy ground connection.
• Simply remove the wire insulation for wiring. No need to install
crimping terminals or solder wires. One screwdriver can remove and
install wires.
• High vibration resistance.
• Reduces wiring time and maintenance compared to screw clamp
terminal blocks. No need to control torque.
• UL/c-UL recognized and EN compliant
Applicable Standards Mark Certification Organization/File No.
UL1059
CSA C22.2 No.158
UL/c-UL Recognition
File No. E78117
IEC/EN60947-7-1
(Standard terminal block)
IEC/EN60947-7-2
(Ground terminal block)
EU Low Voltage Directive
General Ratings
Dielectric Strength (Note) 2500V AC, 1 minute
Insulation Resistance (Note)
2000MΩ minimum
(500V DC megger)
Vibration Resistance
Frequency: 5 to 55 Hz
Amplitude: 0.5 mm
Shock Resistance 1000m/s2
Operating Temperature –25 to +55°C (no freezing)
Storage Temperature –25 to +70°C (no freezing)
Operating Humidity 45 to 85% RH (no condensation)
Note: Except ground terminal blocks.
Material
Parts Name Material (Coating)
Housing Polyamide (UL94V-0)
Bus bar Copper alloy (Tin coated)
Ground contact bracket
Copper alloy (Tin coated)
Spring clamp Stainless steel
Ratings / Applicable Wires
Terminal Block Part No.
IEC/EN UL/c-UL
Insulation Voltage Rated
Current
Wire Size (mm2
)
Solid / Stranded
Insulation Voltage Rated
Current
Wire Size (AWG)
Solid / Stranded
Standard
Terminal Block
BY1S-2.5 600V 24A 0.2 to 2.5 600V 18A 28 to 12
BY1S-4 800V 32A 0.2 to 4.0 600V 20A 28 to 12
BY1S-6 800V 41A 0.2 to 6.0 600V 30A 24 to 10
BY1S-10 800V 57A 0.2 to 10 600V 38A 24 to 8
Ground
Terminal Block
BY1S-2.5PE 0.2 to 2.5 28 to 12
BY1S-4PE 0.2 to 4.0 28 to 12
BY1S-6PE 0.2 to 6.0 24 to 10
BY1S-10PE 0.2 to 10 24 to 8
Internal Connection
Standard terminal block Ground terminal block
Part No. Internal Connection Part No. Internal Connection
BY1S-2.5 BY1S-2.5PE
BY1S-4 BY1S-4PE
BY1S-6 BY1S-6PE
BY1S-10 BY1S-10PE
PE PE
Socket terminal for jumper
PE function ground terminal
Terminal
BY1S Spring Clamp Terminal Blocks
6

Spring Clamp Terminal Blocks All dimensions in mm
Part No. BY1S-2.5 BY1S-4 BY1S-6 BY1S-10
Appearance /
Dimensions
See page 6
for internal
connection
diagram
Width: 5.0 mm
Width: 6.0 mm
Width: 8.0 mm
Weight: Approx. 16g
Width: 10.0 mm
5.0
32.4
38.6 ø4.2
32.2
52.9
When using
DIN Rail: 35.3 DIN Rail
6.0
59.0
42.6 ø5.1
36.3
33.1
When using
73.7
8.0
51.0
37.5
44.8
ø6.8
When using
76.6
10.0
41.8
54.5
45.2
ø8.7
When using
Ordering No. BY1S-2.5 BY1S-4 BY1S-6 BY1S-10
Package Quantity 50 50 50 50
GroundGroundterminalblock
Part No. BY1S-2.5PE BY1S-4PE BY1S-6PE BY1S-10PE
Appearance/
Dimensions
See page 6
for internal
connection
diagram
Width: 5.0 mm
Width: 6.0 mm
Weight: Approx. 11g
Width: 8.0 mm
Width: 10.0 mm
38.6
52.9
32.4
32.2
5.0
ø4.2
When using
DIN Rail: 35.3
DIN Rail
(BAP)
59.0
42.6
36.3
33.1
6.0
ø5.1
When using
DIN Rail: 35.9
DIN Rail
(BAP)
73.7 8.0
51.0
37.5
44.8
ø6.8
When using
DIN Rail: 40.4
DIN Rail
(BAP)
76.6
10.0
41.8
54.5
45.2
ø8.7
When using
DIN Rail: 42.3
DIN Rail
(BAP)
Ordering No. BY1S-2.5PE BY1S-4PE BY1S-6PE BY1S-10PE
Package Quantity 50 50 50 50
Standards IEC/EN UL/c-UL IEC/EN UL/c-UL IEC/EN UL/c-UL IEC/EN UL/c-UL
Insulation Voltage
(Note 1)
600V 600V 800V 600V 800V 600V 800V 600V
Wire Size 0.2 to 2.5 mm2
28 to 12AWG 0.2 to 4 mm2
28 to 12AWG 0.2 to 6 mm2
24 to 10AWG 0.2 to 10 mm2
24 to 8AWG
Rated Current
(Note 1)
24A 18A 32A 20A 41A 30A 57A 38A
Recommended Wire
Strip Length
8 to 9 mm 9 to 10 mm 12 to 13 mm 15 to 16 mm
Accessories
End Stop BY9Z-SEW35
End Plate BY9Z-SEP1 BY9Z-SEP4 BY9Z-SEP7 BY9Z-SEP9
Marking Strip
BY9Z-W5, BY9Z-W5Z-
BY9Z-W5K-
BY9Z-W6, BY9Z-W6Z-, BY9Z-W6K-
DIN rail (Note 2) BAA1000 (Aluminum), BAP1000 (Steel)
Jumper
(2, 3 Pole)
(Note 3)
BY9Z-SQV-2.5/2
BY9Z-SQV-2.5/3
BY9Z-SQV-4/2
BY9Z-SQV-4/3
BY9Z-SQV-6/2
BY9Z-SQV-6/3
BY9Z-SQV-10/2
BY9Z-SQV-10/3
BY1S Spring Clamp Termina Blocks
7

End Stop
Appearance
Part No.
(Ordering No.)
Applicable Terminal Block
(Part No.)
Package Quantity Dimensions Remarks
BY9Z-KEW35/2
BY1K-2.5N, BY1K-2.5NPE
BY1K-4N, BY1K-4NPE
BY1K-6N, BY1K-6NPE
BY1K-10N, BY1K-10NPE
50
8.0
47.0
56.0
M3 (slotted)
• Material
Housing: Polyamide (UL94V-0)
Brackets, Screw:
Steel (Zinc plated trivalent
chromate)
• Weight: Approx. 15.3g
BY9Z-KEW35/1
BY1K-16, BY1K-16PE
BY1K-35, BY1K-35PE
BY1K-50, BY1K-50PE
BY1K-95, BY1K-95PE
50
M4 (slotted)
63.0
12.0
56.0
• Material
Brackets, Screw:
Steel (Zinc plated trivalent
chromate)
BY9Z-SEW35
BY1S-2.5, BY1S-2.5PE
BY1S-4, BY1S-4PE
BY1S-6, BY1S-6PE
BY1S-10, BY1S-10PE
50
40.2
6.0
55.0 • Material
Brackets: Stainless
End Plate
Appearance
Part No.
(Ordering No.)
Applicable Terminal Block
(Part No.)
Package Quantity Dimensions Remarks
BY9Z-KEP2 BY1K-16, BY1K-35 100
56.5 1.5
51.3
• Material: Polyamide (UL94V-0)
BY9Z-KEP6
BY1K-2.5N, BY1K-4N
BY1K-6N, BY1K-10N
100
40.6
36.0
1.5
BY9Z-SEP1 BY1S-2.5, BY1S-2.5PE 100
52.9
21.2
1.5
BY9Z-SEP4 BY1S-4, BY1S-4PE 100
1.5
59.0
21.9
26.3
73.7
1.5
76.6
28.5
1.5
8
BY Series Terminal Blocks (Accessories)

Jumpers
Appearance Poles
Part No.
(Ordering No.)
Applicable
Terminal Block
(Part No.)
Maximum
Current
(Note)
Package
Quantity
Dimensions
Image: BY9Z-KQV-2.5/3
Image: BY9Z-KQV-50/3
• Material
Insulation housing: Polyamide (UL94V-0)
Bus bar: Copper alloy (Tin coated)
Screw: Steel (Zinc plated
trivalentchromate)
2 BY9Z-KQV-2.5/2
BY1K-2.5N 32A 100
Length A
2 Poles: 8.9 Weight:Approx. 1.5g
10 Poles: 49.7 Weight:Approx. 8.1g5.1
A
3.8
M2.6 (slotted)
7.13 BY9Z-KQV-2.5/3
4 BY9Z-KQV-2.5/4
10 BY9Z-KQV-2.5/10
2 BY9Z-KQV-4/2
BY1K-4N
41A
100
Length A
18.0
6.1
M3 (slotted)
7.5A
4.4
3 BY9Z-KQV-4/3
32A4 BY9Z-KQV-4/4
10 BY9Z-KQV-4/10
2 BY9Z-KQV-6/2
BY1K-6N 50A
100
Length A
M3 (slotted)
18.0
7.7
8.0
A
6.3
3 BY9Z-KQV-6/3
4 BY9Z-KQV-6/4
10 BY9Z-KQV-6/10 50
2 BY9Z-KQV-10/2
BY1K-10N 57A
100
Length A
18.5
7.6A
7.0
10.0
M3 (slotted)
3 BY9Z-KQV-10/3
4 BY9Z-KQV-10/4
10 BY9Z-KQV-10/10 50
2 BY9Z-KQV-16/2
BY1K-16
85A
50
A
Length A
27.0
10.2
12.0
M4 (slotted)
9.6
3 BY9Z-KQV-16/3
76A
4 BY9Z-KQV-16/4
2 BY9Z-KQV-35/2
BY1K-35
138A
50
M4 (slotted)
A 26.8
8.8
16.0
11.0
Length A
3 BY9Z-KQV-35/3
112A
4 BY9Z-KQV-35/4 25
2 BY9Z-KQV-50/2
BY1K-50 150A 25
3.0
A
20.0
10.0
10.0
20.4
M6 (slotted)
Length A
3 BY9Z-KQV-50/3
• Material
Insulation housing: Polyamide (UL94V-0)
Bus bar: Copper alloy (Tin coated)
2 BY9Z-SQV-2.5/2
BY1S-2.5 24A 100
A
5.0
2.8
27.3
2.8
Length A
3 BY9Z-SQV-2.5/3
2 BY9Z-SQV-4/2
BY1S-4 32A 100
Length A
A
2.8
6.0
31.3
3.8
3 BY9Z-SQV-4/3
2 BY9Z-SQV-6/2
BY1S-6 41A 100
Length A
A
2.8
8.0
34.0
5.6
3 BY9Z-SQV-6/3
Note: Make sure that the total current to the jumper does not exceed the maximum current of each model.
Image: BY9Z-SQV-2.5/3
9

Jumpers
Appearance Poles
Part No.
(Ordering No.)
Applicable Terminal
Block (Part No.)
Maximum Rated
Current (Note)
Package
Quantity
Dimensions
Image: BY9Z-SQV-10/2
• Material
Insulation housing:
Polyamide (UL94V-0)
Bus bar: Copper alloy
(Tin coated)
2 BY9Z-SQV-10/2
BY1S-10 57A 100
Length A
2 Poles: 16.2 Weight:Approx.4.7g
3 Poles: 26.2 Weight:Approx.7.4g
4.0
A
10.0
27.0
6.2
3 BY9Z-SQV-10/3
Note: Make sure that the total current to the jumper does not exceed the maximum current of each model.
DIN Rails (35mm-wide) Specify Ordering No. when ordering DIN rails.
Part No. Ordering No. Material Length Weight Package Quantity Remarks
BAA1000 BAA1000PN10 Aluminum 1000 mm Approx. 200g 1 set (10) For standard terminal blocks
BAP1000 BAP1000PN10 Steel 1000 mm Approx. 320g 1 set (10) For standard and ground terminal blocks
Marking Strip
Part No.
(Ordering No.)
Applicable Terminal Block (Part
No.)
Package
Quantity
Remarks Dimensions
•Material: Polyamide (UL94V-0)
• Weight: 4.7g (per strip)
BY9Z-W5
BY1K-2.5N, BY1K-2.5NPE
BY1S-2.5, BY1S-2.5PE
50
Blank —
BY9Z-W5Z-1/50 Numbers 1 to 50
Horizontal print
4.9
5.9
23BY9Z-W5Z-51/100 Numbers 51 to 100
BY9Z-W5K-1/50 Numbers 1 to 50
Vertical print
4.9
5.9
23
BY9Z-W6
BY1K-4N, BY1K-4NPE
BY1K-6N, BY1K-6NPE
BY1K-10N, BY1K-10NPE
BY1K-16, BY1K-16PE
BY1K-35, BY1K-35PE
BY1K-50, BY1K-50PE
BY1K-95, BY1K-95PE
BY1S-4, BY1S-4PE
BY1S-6, BY1S-6PE
BY1S-10, BY1S-10PE
50
Blank —
Horizontal print
5.9
5.9
23BY9Z-W6Z-51/100 Numbers 51 to 100
Vertical print
• Material: Polyamide UL94V-0)
BY9Z-W8
BY1K-16, BY1K-16PE
BY1K-35, BY1K-35PE
BY1K-50, BY1K-50PE
BY1K-95, BY1K-95PE
25
Blank —
Horizontal print
5.9
12.0
23
Vertical print
5.9
12.0
23
20
19
18
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
50
49
48
47
46
45
44
43
42
4131
32
33
34
35
36
37
38
39
4030
29
28
27
26
25
24
23
21
22
Vertical print
(numbers 1 to 50)
1 98765432 10
20
30
40
50
19
29
39
49
18
28
38
48
17
27
37
47
16
26
36
46
15
25
35
45
14
24
34
44
13
23
33
43
12
22
32
42
11
21
31
41
Horizontal print
(numbers 1 to 50)
57.8
58.3
2.6
57.8
68.3
2.6 5.9
5.9
23
64.0
71.6
2.6
10

Use the formula below to calculate the length of the DIN rail and
mounting centers.
BAA and BAP DIN rails
L1 (rail length)= 12.5 × N
L2 (mounting centers)= L1 – 25
N =
(A+0.1)×n+B+C
12.5
Note: However, N is the rounded up numerical number from the
calculated value of N.
(Example: N for 19.1 is 20)
A: Thickness of each terminal block
B: Thickness of end plate
C: Thickness of end stop when using 2 pieces of:
BY9Z-SEW35 = 53.0 mm
BY9Z-KEW35/2 = 55.0 mm
BY9Z-KEW35/1 = 59.0 mm
n: The number of terminal blocks
Notes
• This formula is for calculating the maximum rail length includ-
ing tolerance. Depending on the combination of terminal blocks,
the required rail length may be shorter than the calculated value,
particularly when many terminal blocks are combined.
• When mounting BY1K-50 or BY1K-50PE with BY1K-95 or BY1K-
95PE next to each other, cut off the protruding part of BY1K-50 and
BY1K-50PE using nippers.
Cut off the protruding part using
nippers
BY1K
BY1K-2.5N
BY1K-4N
BY9Z-KEP6
BY1K-6N
BY1K-10N
BY1K-2.5NPE
BY1K-4NPE
BY1K-6NPE
BY1K-10NPE
BY1K-95
BY1K-95PE
End Stop
BY1K-35PE
BY9Z-KEP2
BY1K-50
BY1K-50PE
BY1K-16PE
BY1K-35
BY1K-16
5.1
6.1
8.0
10.0
16.0
12.0
20.0 25.0
12.2
16.0
1.5
L2 (mounting centers)
L1 (rail length)
10.28.2
6.2
5.2
1.5
End Stop
BY1S
BY1S-6
BY1S-6PE
BY9Z-SEP9
BY1S-10PE
BY1S-10
BY9Z-SEP7
BY1S-2.5
End Stop End Stop
BY1S-2.5PE
BY9Z-SEP1
BY1S-4
BY1S-4PE
BY9Z-SEP4
5.0
5.0
1.5
6.0
6.0
1.5 8.0
8.0
1.5
10.0
10.0
1.5
L2 (mounting centers)
L1 (rail length)
Calculating DIN Rail Lengths and Mounting Centers All dimensions in mm.
11

• Remove power to the terminal blocks before starting installation,
removal, wiring, maintenance, and inspection of the products. Failure
to remove power may cause electrical shock, fire, or malfunction.
• For wiring, use wires of proper size to meet voltage and current
requirements.
• Make sure that terminal blocks and wires are connected securely.
Otherwise, abnormal heat may be generated and cause fire.
• Make sure that cut wire ends and chipping from drilling do not enter
into the inside of the product at the time of installation and wiring. Cut
wire ends and chipping inside the product may cause fires, failures,
and poor conductivity.
• Make sure to use under the voltage and electric current suitable for
terminal blocks. Using under incorrect voltage and electric current
may cause fires and failures.
• Do not apply excessive load or shock to the terminal block. Other-
wise damages may occur.
• Do not apply excessive shock to the connected wires. Otherwise,
terminal blocks may be damaged and cause conduction failure.
• Do not use in places where the terminal blocks are subject to salt
contaminated water, oil, and chemicals.
DIN Rail Mounting
• Use 35mm-wide DIN rail (BAA1000 or BAP1000) when mounting
BY1K or BY1S standard terminal blocks.
• When the BY1K and BY1S ground terminal blocks are mounted on
the 35mm-wide DIN rail, the conductive metal inside the terminal
blocks will come in direct contact with the DIN rail, enabling easy
ground connection. Therefore, make sure that the DIN rail is made of
steel (BAP1000). Mounting on alumite coated DIN rail (BAA1000) may
cause poor conductivity.
Contact
part
Contact
part
Conductive metal DIN rail (steel)
• BY1K and BY1S ground terminal blocks can be used as a protective
conductor (PE function) by connecting to a 35mm-wide steel DIN rail
(BAP1000) but cannot be used as a PEN function conductor.
• See page 2 for BY1K internal connection diagram.
See page 6 for BY1S internal connection diagram.
Installation
BY1K and BY1S Standard Terminal Blocks
BY1S Ground Terminal Block
• Install the end stop on one side of the DIN rail.
• Install the terminal block to the DIN rail, ensuring there is no gap. To
install the terminal block, attach the fixing hook to the side of the DIN
rail and push the other side (removing hook side) to mount on the
DIN rail. Make sure that excessive force is not applied to the terminal
block. Note that the front and back sides of the terminal block are
correctly mounted so that the metal parts visible from the open side
of the terminal block do not contact each other.
• Be sure to install an end plate when using a terminal block with an
open side that has metal parts.
Push
Fixing hook
Removing
hook
DIN rail
Attach the fixing hook side
of the terminal block to the
rail.
• If the terminal block requires an end plate, install the end plate and
secure with a end stop.
If the terminal block does not require an end plate, simply install an
end stop.
• If terminal blocks of different sizes are mounted on a single rail,
install an end plate on the open side of the terminal block to hide the
internal metal parts.
• To remove the terminal block, insert a screwdriver between the
removing hook and push up.
Note that using a screwdriver with anti-slip coating on the tip will
make the terminal block easier to remove.
Make sure that excessive force is not applied when removing the
terminal block. Removing the terminal block with excessive force
applied on the top may cause deformation or damage to the removing
hook.
• Installation and removal of terminal blocks to and from DIN rails
should take place in an environment of 0˚C or higher.
Installation and removal in low temperatures (below 0˚C) may cause
damage to the removing hook.
Removing
hook DIN rail
Push
Screwdriver
Operating Instructions
Safety Precautions
12
BY Series Terminal Blocks (Instructions)

Table 1 Applicable Tools for BY1K Ground Terminal Block Mounting Screw
Part No.
Mounting
Screw
Size
Mounting
Screw Type
Recommended
Tightening Torque
(N·m)
Tools
Type Shape of Tool (Note) Width A (mm)
BY1K-2.5NPE M2.6 Slotted 0.4 to 0.5
Slotted screwdriver Width A (mm) slotted screwdrivers with a straight blade tip can be used.
2.5 to 3.0
BY1K-4NPE M3 Slotted 0.5 to 0.64 2.5 to 3.0
BY1K-16PE M3 Slotted 0.5 to 0.6 3.0 to 3.5
BY1K-35PE M3 Slotted 0.52 to 0.65 3.0 to 3.5
BY1K-50PE M5
Cross
recessed +
slotted
2.4 to 3.2
Slotted screwdriver Width A (mm) slotted screwdrivers with a straight blade tip can be used. 4.0 to 5.5
Cross recessed screwdriver PH2 shaped (DIN7438/ISO8764) or H shaped No.2 (JIS B 4633) —
BY1K-95PE M6
Cross
recessed +
slotted
2.6 to 3.7
Slotted screwdriver Width A (mm) slotted screwdrivers with a straight blade tip can be used. 5.5
Cross recessed screwdriver PH2 shaped (DIN7438/ISO8764) or H shaped No.2 (JIS B 4633) —
Table 2 Applicable Tools for BY1K Standard Terminal Block Terminal Screw
Terminal Block Part No.
Terminal screw Recommended Tightening Torque (N·m) Tools
Terminal
Screw Size
Screw Type UL/c-UL IEC/EN Type Shape of Tool (Note) Width A (mm)
Standard
Terminal
Block
BY1K-2.5N M2.6 Slotted 0.56 0.4 to 0.6
Slotted
Screwdriver
Width A (mm) slotted screwdrivers
with a straight blade tip can be
used.
2.5 to 3.0
BY1K-4N M3 Slotted 1.13 0.5 to 1.0 3.0 to 3.5
BY1K-16 M5 Slotted 3.5 2.0 to 4.0 4.0 to 5.5
BY1K-35 M6 Slotted 5.8 2.5 to 5.86 4.0 to 5.5
BY1K-50 M6
Hexagon
socket
head cap
6.0 4.6 to 6.09
Hexagon
Socket Screw
Keys
Size No. 5
(JIS B 4648/ISO2936)
—
BY1K-95 M8
Hexagon
socket
head cap
16.8 8.0 to 17.25
Size No. 6
(JIS B 4648/ISO2936)
—
Ground
Terminal
Block
BY1K-2.5NPE M2.6 Slotted 0.46 to 0.6 0.46 to 0.6
Slotted
Screwdriver
used.
2.5 to 3.0
BY1K-4NPE M3 Slotted 0.6 to 0.7 0.6 to 0.7 3.0 to 3.5
BY1K-6NPE M3.5 Slotted 1.15 to 1.6 1.15 to 1.6
Slotted
Screwdriver
used.
3.5 to 4.0
Slotted
Screwdriver
used.
3.5 to 4.0
BY1K-16PE M5 Slotted 4.0 2.07 to 4.02 4.0 to 5.5
BY1K-35PE M6 Slotted 6.2 2.5 to 5.86 4.0 to 5.5
BY1K-50PE M6
Hexagon
socket
head cap
6.1 6.09 to 8.05
Hexagon
Socket Screw
Keys
Size No. 5
(JIS B 4648/ISO2936)
—
BY1K-95PE M8
Hexagon
socket
head cap
12 6.9 to 10.35
Size No. 6
(JIS B 4648/ISO2936)
—
Note: Shape of screwdriver
A
BY1K Ground Terminal Blocks
• Install the end stop on one side to the DIN rail.
• Mount the terminal block to the DIN rail, ensuring there is no gap.
To mount, loosen the mounting screw at the center of the ground
terminal block and mount on the DIN rail. Check that the joint of the
ground terminal block is securely attached to the DIN rail. Make sure
that the ground terminal block is correctly mounted on the DIN rail.
Otherwise, heating or fire may occur.
DIN rail (steel)
DIN rail (steel)
Tighten the mounting screw.
Make sure that
the terminal
block is secured
to the DIN rail.
Mount the
terminal block on
the DIN rail.
• Tighten the center mounting screw of the ground terminal block using
the applicable tool mentioned in table 1. Tighten at the recommended
tightening torque. If the tightening torque is insufficient, heating or
fires may occur.
• To remove, loosen the center mounting screw of the ground terminal
block. Make sure that the mounting screw is fully loosened before
removing. Removing forcibly may cause deformation or damage to
the terminal block.
Wiring
• Stranded wires, solid wires, and stranded wires with ferrules or blade
terminals can be connected to BY1K screw clamp terminal blocks.
• Tighten the terminal screw to the recommended tightening torque
using the applicable tool mentioned in table 2.
• Use commercially available ferrules and crimping tools.
When using ferrules or blade terminals, see table 3 for dimensions for
recommended ferrules or blade terminals.
13
BY Series Terminal Blocks (Instructions)

• When using bare ferrules or bare blade terminals, make sure that an
insulation sheath is applied.
• If stranded wires are used without ferrules or blade terminals, make
sure that wires are not separated.
• When tightening the terminal screw while holding the terminal block
in your hands, be careful not to injure your fingers with the tip of the
screwdriver.
Table 3 Dimensions of recommended ferrules/blade terminals
Terminal
Block
Part No.
Dimensions of applicable ferrules /
blade terminals
A
(mm)
B (max.)
(mm)
C (max.)
(mm)
Standard
Terminal
Block
BY1K-2.5N 8 to 10 2.5 4.9
BY1K-4N 8 to 10 3.5 5.9
BY1K-6N 10 to 12 4.3 7.8
BY1K-10N 10 to 12 6.2 9.8
BY1K-16 15 to 17 7.1 11.8
BY1K-35 16 to 18 10 15.8
BY1K-50 20 to 25 12.6 19.8
BY1K-95 30 to 35 16.6 24.8
Ground
Terminal
Block
BY1K-2.5NPE 8 to 10 2.4 5.0
BY1K-4NPE 8 to 10 3.1 6.0
BY1K-6NPE 10 to 12 4.3 8.0
BY1K-10NPE 10 to 12 5.4 10.0
BY1K-16PE 14 to 18 7.1 12.0
BY1K-35PE 14 to 18 10 15.8
BY1K-50PE 20 to 25 12.6 20.0
BY1K-95PE 25 to 30 16.1 24.8
• Ferrule dimensions (mm)
(Standard terminal with Insulation sleeve) (Two wires with insulation sleeve)
C
A
B
CA
B
• Center-pin terminal dimensions (mm)
(with insulation terminal)
A
B
C
Connecting and removing wires on BY1K terminal blocks
1. Loosen the terminal screw with an applicable tool so that a wire,
ferrule or blade terminal can be inserted in the cage clamp.
2. Insert an applicable wire (stranded, solid) with insulation stripped
to the standard length, or a recommended crimped ferrule or blade
terminal, all the way to the end. Use a single wire, ferrule, or blade
terminal to a single cage clamp. If two wires are connected to a
single cage clamp, make sure to use a recommended ferrule or
blade terminal that allow two wires to be inserted.
When doing so, use applicable wires, recommended ferrules or
blade terminals for connecting wires. Use of inappropriate wires,
ferrules, and blade terminals may cause heating and fire.
After inserting wires, wires can be connected by tightening the
terminal screw with an applicable tool.
Make sure to tighten the mounting screw at the recommended
tightening torque. If fastening torque is insufficient, heating or fires
may occur. Confirm that the wire is connected securely by pulling it
lightly after wiring.
3. To remove the wiring, loosen the terminal screw with an applicable
tool and remove the wire, ferrule, or blade terminal.
1
2
3
Cage clamp
Stranded wire
Solid wire
Ferrule
Blade terminal
Cage clamp
Insert an applicable wire (stranded, solid),
recommended ferrule, or a wire with a recommended
rod terminal crimped, all the way to the end.
Loosen the terminal screw so that
a wire, ferrule, or blade terminal can
be inserted.
Connect wires by tightening the terminal screw at
the recommended tightening torque.
Remove a wire, ferrule, or rod terminal by loosening the
terminal screw.
BY1S spring clamp terminal block
• Stranded wires, solid wires, and stranded wires with ferrules or blade
terminals can be connected to BY1S spring clamp terminal blocks.
• Use the tools mentioned in the table 4 below for wiring terminal
blocks.
Table 4 Applicable tools for BY1S terminal block
Terminal
Block
Part No.
Tools
Type Shape of Tool (Note)
Width A
(mm)
Standard
Terminal
Block
BY1S-2.5
Slotted
Screwdriver
Width A (mm) slotted
screwdrivers with a
straight blade tip can
be used.
2.5 to 3.0
BY1S-4 2.5 to 4.0
BY1S-6 3.5 to 4.5
BY1S-10 3.5 to 5.5
Ground
Terminal
Block
BY1S-2.5PE 2.5 to 3.0
BY1S-4PE 2.5 to 4.0
BY1S-6PE 3.5 to 4.5
BY1S-10PE 3.5 to 5.5
A
14
BY Series Terminal Blocks (Operating Instructions)

• Use commercially available ferrules and crimping tools.
See table 5 on dimensions for recommended ferrules or blade
terminals.
•
Table 5 Dimensions for Recommended ferrules, blade
terminals
Terminal
Block
Part No.
Dimensions of applicable ferrules
/ blade terminals
A
(mm)
B (max.)
(mm)
C (max.)
(mm)
Standard
Terminal
Block
BY1S-2.5 8 to 9 1.6 4.8
BY1S-4 9 to 10 2.6 5.8
BY1S-6 12 to 13 3.2 7.8
BY1S-10 15 to 16 3.5 9.8
Ground
Terminal
Block
BY1S-2.5PE 8 to 9 1.6 4.8
BY1S-4PE 9 to 10 2.6 5.8
BY1S-6PE 12 to 13 3.2 7.8
BY1S-10PE 15 to 16 3.5 9.8
Ferrule dimensions (mm)
( Standard terminal with Insulation sleeve) (Two wires with insulation sleeve)
C
A
B
CA
B
Center-pin terminal dimensions (mm)
(with insulation terminal)
A
B
C
When using bare ferrules or bare blade terminals, make sure that an
insulation sheath is applied.
• If stranded wires are connected without ferrules or blade terminals,
make sure that wires are not separated.
• When tightening the terminal screw while holding the terminal block
in the hands, be careful not to injure your fingers with the tip of the
screwdriver.
• Top view of the terminal block
Holes on a terminal block
1 : Square hole for screwdrivers
2 : Holes for inserting wires, ferrules and blade terminals
3 : Square hole for jumpers
[Two wire connection type]
1
2
2
3
1
BY9Z-SQV jumper is exclusive for BY1S standard terminal blocks and
cannot be used for ground terminal blocks.
Connecting and removing wires
1. 2. Insert an applicable screwdriver to the square hole 1 in an angle
all the way to the end to open the spring inside the terminal block.
Make sure to use an applicable screwdriver and insert it to the
square hole 1 where the wire needs to be connected.
Do not add excessive force to the spring when inserting the
screwdriver. The spring may be deformed.
3. With the screwdriver inserted, insert an applicable wire (stranded,
solid) with the insulation removed to the standard length, or a wire
crimped with ferrule or blade terminal, all the way to the end in
round hole 2 . Note that only a single wire, ferrule, or blade terminal
can be connected to a single round hole 2 .
4. Pull out the screwdriver. Make sure that wiring is properly connected
by pulling the wires lightly.
• To remove a wire, insert an applicable screwdriver to square hole 1
all the way to the end to open the spring. After removing the wire,
ferrule, or blade terminal, remove the screwdriver.
Do not add excessive force to the spring. The spring may be de-
formed.
• If two wires are connected to a single round hole 2 make sure to
use a recommended ferrule or blade terminal that allow two wires to
be inserted.
Make sure to use an applicable wire with insulation removed at the
standard length, ferrule, or blade terminal for wire connection. Use of
inappropriate wires, ferrules, or blade terminals may cause heating
and fire.
Insert a screwdriver to the
square hole 1 .
1.
2.
Insert the wire to hole .
3.
4.
Wire
Wire
Wire
Screwdriver
Screwdriver
Screwdriver
The screwdriver opens
the spring inside.
Remove the screwdriver.
2
15

Installing and Removing Accessories
1) Installing and removing end stops
BY9Z-KEW35/2, BY9Z-KEW35/1
• The applicable rail is a 35mm-wide DIN rail (BAA1000, BAP1000).
• With the mounting screw at the center of the end stop loosened,
install the end stop by hooking the mounting hook to the DIN rail and
pushing down the other hook from the top.
• The end stop will be secured by tightening the mounting screw on the
center.
Make sure to tighten the mounting screw at the recommended
tightening torque.
Recommended tightening torque
BY9Z-KEW35/2: 0.5 to 0.7 N·m
BY9Z-KEW35/1: 0.8 to 1.15 N·m
[Installing end stops BY9Z-KEW35/2 and BY9Z-KEW35/1]
DIN rail
DIN rail
Lower the other
mounting hook to
the DIN rail.
Hook the mounting hook
to the DIN rail.
Tighten at the recommended tightening
torque.
• To remove the end stop, loosen the mounting screw and move the
end stop to one side push the hook to the other side and lift up.
[Removing end stop BY9Z-KEW35/2 and BY9Z-KEW35/1]
Loosen the mounting screw.
Lift up the hook on
the on the other
side.
Move the end stop to one side.
BY9Z-SEW35
• The applicable rail is a 35mm-wide DIN rail (BAA1000, BAP1000).
• Hook the fixing hook of the end stop on the DIN rail and push from the
top to install.
•
［Installing end stop BY9Z-SEW35］
Push from the top.
Mounting
hook
DIN rail
Hook the fixing hook to
the DIN rail.
To remove the end stop, hook the screwdriver to the removing hook
and push up.
Note that a screwdriver with coating on the tip (for anti-slipping)
makes it easier to remove.
Do not add excessive force to the hook. Removing the end stop forc-
ibly may cause deform or damage to the hook.
Screwdriver
Push up
Removing
hook
DIN rail
[Removing end stop BY9Z-SEW35]
• Installation and removal of the end stop to the DIN rail should take
place in an environment of 0˚C minimum.
Installation and removal in low temperature environment (below 0˚C)
may cause damage to the removing hook.
2) Installing the end plate
• Secure the end plate by pressing the protrusion of the end plate into
the recess of the terminal block.
Push in the end plate.
Protrusion of
the end plate
[Installing the end plate]
16

3) Installing and removing the marking strip
• Install the marking strip by pressing the legs of the marking strip into
the hole for inserting the marking strip in the terminal block.
[Installing the marking strip]
Legs of the marking strip
Hole for securing
the marking strip
Push
• To remove the marking strip, insert a tool such as a slotted screw-
driver into the gap between the marking strip and the terminal block,
and push out.
Slotted screwdriver
Insert a screwdriver and
push out.
[Removing the marking strip]
4) Installing and removing jumpers
BY9Z-KQV
• Select an appropriate jumper for the terminal block.
Insert the jumper into the square hole at the center of the upper
surface of the terminal block.
For models BY9Z-KQV-2.5 through BY9Z-KQV-10, insert so that the
slit of the jumper fits into the cutout of the square hole on the terminal
block.
Slit
Jumper
Insert so that the slit of the
jumper fits into the cutout of
the square hole.
Square hole
Cutout
[Installing jumpers BY9Z-KQV-2.5 to BY9Z-KQV-10]
Insert
For models BY9Z-KQV-16 through BY9Z-KQV-50, the jumper can be
installed in both directions.
Jumper
Square hole
[Installing jumpers BY9Z-KQV-16 to BY9Z-KQV-50]
The jumper can be
installed in both
directions.
Insert
• When installing a jumper to BY1K-50 terminal blocks, break and
remove the plastic at the center of the upper surface and the side of
the terminal block (2 locations) with pliers and install the jumper.
Pliers
Top center of the
terminal block
Side center of the
terminal block
Break and remove the top center
and side surface of the terminal
block (2 areas) with a pliers.
[Removing the plastic of BY1K-50]
• Tighten the mounting screw of the jumper with the applicable tool
and tightening torque described in table 6.
Table 6 Applicable tool and tightening torque for BY9Z-KQV
Part No.
Screw
Size
Tools
Tightening
Torque
(N·m)
Maximum
CurrentType
Shape of Tool
(Note)
Length A
(mm)
BY9Z-KQV-2.5/2
M2.6
Slotted
screwdriver
Width A
(mm) slotted
screwdrivers
with a
straight
blade tip can
be used.
2.5 to 3.0 0.4 to 0.7 32A
BY9Z-KQV-2.5/3
BY9Z-KQV-2.5/4
BY9Z-KQV-2.5/10
BY9Z-KQV-4/2
M3 3.0 to 3.5 0.5 to 0.7
41A
BY9Z-KQV-4/3
32ABY9Z-KQV-4/4
BY9Z-KQV-4/10
BY9Z-KQV-6/2
M3 3.5 to 4.0 0.5 to 0.7 50A
BY9Z-KQV-6/3
BY9Z-KQV-6/4
BY9Z-KQV-6/10
BY9Z-KQV-10/2
M3 3.5 to 4.0 0.5 to 0.7 57A
BY9Z-KQV-10/3
BY9Z-KQV-10/4
BY9Z-KQV-10/10
BY9Z-KQV-16/2
M4 4.0 to 5.5 1.2 to 1.8
85A
BY9Z-KQV-16/3
76A
BY9Z-KQV-16/4
BY9Z-KQV-35/2
M4 3.5 to 4.0 1.2 to 1.8
138A
BY9Z-KQV-35/3
112A
BY9Z-KQV-35/4
BY9Z-KQV-50/2
M6 4.0 to 5.5 2.5 to 4.5 150A
BY9Z-KQV-50/3
A
17

• To remove the jumper, loosen the mounting screw of the jumper.
• Make sure that the total current to the jumper does not exceed the
maximum current of each model.
• For BY9Z-KQV-2.5 to BY9Z-KQV-35 jumpers, the metal and plastic
parts of unused terminals can be removed by pliers. The mounting
screws can also be removed.
Break and remove the unused terminals
of the jumpers and remove the
mounting screws.
[Removing unused terminals for BY9Z-KQV-2.5 to 35]
Remove
• For BY9Z-KQV-50 jumpers, mounting screws of unused terminals can
be loosened and removed so that they do not connect with terminal
blocks that do not need connection.
Loosen and remove
unused terminals
[Removing unused terminals for BY9Z-KQV-50]
Remove
BY9Z-SQV
• Select a jumper suitable for the model of the terminal block used and
the number of jumper poles.
• A jumper can be connected by simply pushing into the square hole for
the jumper on the upper surface of the terminal block.
BY9Z-SQV jumpers are used exclusively for BY1S standard terminal
blocks and cannot be used for ground terminals.
• Make sure that the total current to the jumper does not exceed the
maximum current of each model.
•
[Installing BY9Z-SQV]
Jumper
Connect the jumper into
a square hole.
Square holes for
inserting jumpers
Insert
To remove the jumper, hook a slotted screwdriver to the groove of the
insulated plastic part of the jumper and pull out.
Groove
Screwdriver
[Removing BY9Z-SQV]
• For BY9Z-SQV, an unused metal part can be broken by pliers and
removed so that they do not connect with terminal blocks that do not
need connection.
[Removing unused terminals of BY9Z-SQV]
Break the unused metal part with pliers
and remove the terminal.
Remove
18

www.idec.com
USA IDEC Corporation Tel: +1-408-747-0550 opencontact@idec.com
Germany IDEC Elekrotechnik GmbH Tel: +49-40-25 30 54 - 0 service@eu.idec.com
Singapore IDEC Izumi Asia Pte. Ltd. Tel: +65-6746-1155 info@sg.idec.com
Thailand IDEC Asia (Thailand) Co., Ltd Tel: +66-2-392-9765 sales@th.idec.com
Australia IDEC Australia Pty. Ltd. Tel: +61-3-8523-5900 sales@au.idec.com
Taiwan IDEC Taiwan Corporation Tel: +886-2-2698-3929 service@tw.idec.com
Hong Kong IDEC Izumi (H.K.) Co., Ltd. Tel: +852-2803-8989 info@hk.idec.com
China/Shanghai IDEC (Shanghai) Corporation Tel: +86-21-6135-1515 idec@cn.idec.com
China/Shenzhen IDEC (Shenzhen) Corporation Tel: +86-755-8356-2977 idec@cn.idec.com
China/Beijing IDEC (Beijing) Corporation Tel: +86-10-6581-6131 idec@cn.idec.com
Japan IDEC Corporation Tel: +81-6-6398-2527 marketing@idec.co.jp
Specifications and other descriptions in this brochure are subject to change without notice.
2017 IDEC Corporation, All Rights Reserved.
EP1565-3 FEBRUARY 2018
Head Ofﬁce
6-64, Nishi-Miyahara-2-Chome, Yodogawa-ku, Osaka 532-0004, Japan

BY1K Screw Clamp Terminal Blocks Guide

Recommended

Recommended

More Related Content

What's hot

What's hot (18)

Similar to BY1K Screw Clamp Terminal Blocks Guide

Similar to BY1K Screw Clamp Terminal Blocks Guide (20)

More from CTY TNHH HẠO PHƯƠNG

More from CTY TNHH HẠO PHƯƠNG (20)

Recently uploaded

Recently uploaded (20)

BY1K Screw Clamp Terminal Blocks Guide