Here I introduces some Mitsubishi Obsolete Protection Relays

1. Seekcomponents, one-stop sourcing service provider
Knowing the Mitsubishi Obsolete Protection Relays
Biased differential relay
A relay with the biasing feature to provide the stability in the operation
Obsolete Parts type: CAC1-10-M3, CAG-D, CAT-D, CAT-E, CAT-2-D, CAT-3-D, HUB-2-D/G. HUB-2T-D, HUB-3-D/G,
HUB-3B-D, HUB-3C-D
Directional earth fault relay
Directional Earth fault relay requires to Inputs line Current and line voltage.
So in case of Current there are standard output of any CT (either 1A or 5A).And for Voltage Inputs there is a Standard
Potential transformers witch give 110/(sqr.root of 3)
Obsolete Parts type: CWG-2B-D, CWG-2B-R, CWG-2T-R, CWG-4-D, CWP-2-D, CWR-2-D, CWR-3-D, DGB-3-D
S
NENT
OMPO
Directional overcurrent relay
EKC
The directional overcurrent relay is a relay that will provide overcurrent protection in a directional manner.
SE
Obsolete Parts type: CPP4-10-M2, CRC SERIES, CRD SERIES, CRP SERIES, CR SERIES
Distribution line protection relay
Obsolete Parts type: CFP1-10-M3, CFP1-20-M3, CFP1-30-M1, CFP1-40-M1, CFP1-E1-M1, CFP1-E2-M1
Generator protection relay
Obsolete Parts type: CGP2-10-M3, CGP3-10-M3, CGP4-10-M3, HAG-2-D
Interconnection protection relay
Obsolete Parts type: CPP1-10-M3, CPP2-10-M3, CPP2-20-M3, CPP2-20-M3, CPP2-A01D2, CPP2-A02D2,
CPP3-10-M2, CPP3-A01D2, CPP3-A11D2, CPP3-A02D2, CPP3-A12D2
Lamp type fanle indicator
ENTS
Obsolete Parts type: FLU-B, FLU-D, FLU-S
M PON
EKCO
Motor protection relay
SE
Obsolete Parts type: CMP1-A03D2, CMP2-10-M3, CMP3-10-M3, CMP4-10-M1
Overcurrent relay
An "overcurrent relay" is a type of protective relay which operates when the load current exceeds a preset value. The
ANSI device number is 50 for an instantaneous over current (IOC), 51 for a time over current (TOC). In a typical
application the overcurrent relay is connected to a current transformer and calibrated to operate at or above a specific
current level. When the relay operates, one or more contacts will operate and energize to trip (open) a circuit breaker
Obsolete Parts type: CO-11-D, CO-11I-D, CO-11B-D, CO-11BI-D, CO-15-D, CO-15I-D, CO-15I-R, CO-15-R,
CO-16-D, CO-16I-D, CO-16I-R, CO-16-R, CO-18-D, CO-18I-D, CO-18I-R, CO-18-R, CO-28I-D, CO-2-D, CO-2I-D,
CO-5-D, CO-5I-D, CO-6-D, CO-6I-D, CO-7B-D/G, CO-7BI-D/G, CO-7-D, CO-7I-D, CO-8-D, CO-8I-D, CO-8-R, CO-9-D,
CO-9I-D, CO-9B-D, CO-9BI-D, COA-8-R, COA-10-R, COC1-11-M1, COC1-20-M1, COC1-E2-MD. COC2-11-M1,
COC2-20-M1, COC3-11-M1, COC3-20-M1, COC3-21-M1, COC3-30-M1, COC3-A02D1, COC3-E1-MD, COC4-10-M3,
COC4-20-M1, COC4-E1-MD, COG-2-D/E, COR-1B-D
1

2. Seekcomponents, one-stop sourcing service provider
Overvoltage relay
Obsolete Parts type: COV1-11-M1, COV1-20-M1, COV1-21-M1, COV1-A01D1, COV3-A01D1, COV3-E1-MD,
COY-E, COZ-E
Pilotwire relay
Obsolete Parts type: HCB-3B-D, HCB-4-D, HCB-4B-D, HCB-4C-D, HCB-4D-D, HCB-6-D, HCB-6B-D
Power relay
Obsolete Parts type: CW-11-D, CW-13D-D, CW-14-D
Reverse power relay
S
NENT
Obsolete Parts type: BF-2, CW-15B-D, CW-15B-R, CW-15F-R
Undervoltage relay
EKC OMPO
SE
Undervoltage relay is used to keep machinery from starting automatically when incoming power is restored after a
power outage or after a significant drop in line voltage.
Obsolete Parts type:CUV1-11-M1, CUV1-20-M1, CUV1-A01D1, CUV3-20-M1, CUV3-A01D1, CUV3-E1-MD
Undervoltage start overcurrent relay
Obsolete Parts type: COV-6-D, COV-6I-D, COV-7-D, COV-7I-D, COV-8-D, COV-8I-D, COV-9-D, COV-9I-D
Voltage relay
Voltage relays are designed to monitor voltages in single and three phase systems with direct and/or alternating
voltages.
Obsolete Parts type: CBV1-11-M1, CBV1-20-M1, CBV1-A01D1, CBV2-A02D1, CBV2-E1-MD, CBV2-E2-MD,
CBV3-10-M3
CBV3-20-M1, CBV3-E1-MD, CBV4-10-M3
ENTS
CV-1-D, CV-2-D, CV-2-R, CV-2T-D, CV-4-D, CV-5-D, CV-5-R, CV-5T-E/R, CV-6-D, CV-7-D, CV-7B-D, CV-8T-D,
PON
CVA-2-R, CVA-5-R
M
Voltage restricted overcurrent relay
SE EKCO
COR-2B-D, COT-15-R, COT-15I-R, COT-21/21I-R
2

3. Seekcomponents, one-stop sourcing service provider
Seekcomponents
Home Page
http://www.seekcomponents.com
Address
2507 Rustic Ridge Loop，
Lutz FL 33559，
S
NENT
USA
EKC OMPO
SE
Email：steve@baitron.com
Seekcomponents is a one-stop sourcing service provider for ICs, connectors, discretes, transistors and other
components and devices. Seekcomponents offers a highly reliable supply source for hard to find, obsolete and long
lead time components, as well as a competitive source of cost saving on current available components. Our vast
inventory is built on our relationships with thousands of suppliers worldwide, including electronic component
manufacturers, distributors, contract manufacturers, and OEMs.
PON ENTS
M
SE EKCO
3