The Heatfast HF9225 junction box can terminate up to 3 Heatfast trace heating cables. It has terminals that allow connection of up to 3 cables and has 4 knockouts suitable for indoor or outdoor installation. The junction box is rated for 240V and a total load of 25A, which can power 1 cable at full load or 3 cables adding up to 25A. It is IP65 rated and made of polystyrene thermoplastic.

1. HEATFAST HF9225 TRACE HEATING JUNCTION BOX
FOR TERMINATION OF UP TO 3 HEATFAST TRACE HEATING CABLES
Product Overview
T&D’s Heatfast HF9225 junction box is used to terminate up to 3 Heatfast trace heating cables.
HF9225 junction boxes are suitable for both indoor and outdoor installation.
The terminals provided are 2xL (linked) 2xN (linked) & 2xE, allowing up to three trace
heating cables to be connected.
A total of 4 knockouts are available, M20/M25.
The unit is rated for 240V and a total load of 25A. Each terminal will carry the total load
so a single heater at 25A may be fed from this versatile junction box or three heaters
which add up to 25A can also be used.
Technical Specification
www.heattracing.co.uk
Part Ref HF9225
Rated Insulation
Voltage
690V AC/DC
Tightening Torque for
Terminal
1.2Nm
Degree of Protection
IP65
IK07 (2 Joule)
Material
PS Polystyrene Thermoplastic
Colour - RAL7035
Dimensions
Width - 98mm
Height - 98mm
Depth - 61mm
Weight 0.164kg
Resistant To Occasional
Cleaning Procedures
Resistant to occasional cleaning procedures (direct jet) with high-pressure
cleaner without additives.
Water Pressure: 100 bar Max
Water Temperature: 80ºC Max
Distance: ≥0.15m in accordance with the requirements IP 69K, enclosure
and cable glands at least IP 65
Ambient Temperature
Average value over 24 hours: +35ºC
Maximum Value: +40ºC
Minimum Value: -25ºC
Relative Humidity
50% at 40ºC
For short periods: 100% at 25ºC
Fire Protection In The
Event Of Internal Faults
Demands placed on electrical devices from standards and laws.
Minimum requirements - Glow wire test in accordance with IEC 60 695-2-
11: 650ºC for boxes and cable glands, 850ºC for parts of insulating
material necessary to retain current carrying parts in position

2. HEATFAST HF9225 TRACE HEATING JUNCTION BOX
FOR TERMINATION OF UP TO 3 HEATFAST TRACE HEATING CABLES
www.heattracing.co.uk
Burning Behaviour
Glow wire test IEC 60 695-2-11: 750ºC
UL Subject 94: V-2
Flame Resistant
Self-extinguishing
Toxic Behaviour
Halogen-free - in accordance with the examination of the cables and
insulated wires - corrosiveness of fumes - as per IEC 754-2
Silicone-free
Detail Mass Drawing

3. HEATFAST HF9225 TRACE HEATING JUNCTION BOX
FOR TERMINATION OF UP TO 3 HEATFAST TRACE HEATING CABLES
www.heattracing.co.uk
Dimension Drawing
Box Walls