ABB / General Electric THJK636400WL Molded Case Circuit Breaker
- 400A
- 3 Pole
- Unit Mount
Quantity
ABB / General Electric THJK636400WL - 400A 3 Pole Molded Case Circuit Breaker
New
Quantity
Description
Constructed on GE's larger 600A J-frame architecture, the THJK636400WL is a 400A, 3-pole molded case circuit breaker designed for heavy-duty applications. It features an interchangeable thermal magnetic trip unit with adjustable instantaneous settings to meet specific coordination requirements. Delivering a 65kAIC rating at 240V, this unit mount breaker is ideal for commercial power systems.Specifications
| Brand | ABB / General Electric |
|---|---|
| Part Number | THJK636400WL |
| Series | THJK |
| Amperage | 400A |
| Poles | 3 |
| Mounting Style | Unit Mount |
| Voltage | 240VAC, 480VAC, 600VAC, 250VDC, 500VDC |
| Phase | 3 |
| AIC Rating | 65kA @ 240VAC, 35kA @ 480VAC, 25kA @ 600VAC, 40kA @ 250VDC, 20kA @ 500VDC |
| Frame Type | THJK |
|---|---|
| Terminal Type | Lugs |
| For Use With | GE J600 Enclosures, GE A-Series Panelboards, GE Switchboards, GE Motor Control Centers |
| Wire Gauge | (2) 4/0 AWG - 500 kcmil (Cu/Al) |
| Max Wire | 500 kcmil |
| Min Wire | 4/0 AWG |
| Trip Technology | Thermal Magnetic |
|---|---|
| Trip Function Code | LI |
| Trip Function | Long-Time, Instantaneous |
| Trip Adjustability | Fixed Thermal, Adjustable Magnetic |
| Available Options | Shunt Trip, Auxiliary Switch, Undervoltage Release, Alarm Switch, Mounting Hardware |
|---|---|
| Accessories | Line and Load Lugs Included (TCAL63) |
| Standards | CSA C22.2 No. 5, NEMA AB-1, UL 489 |
| Approval | CSA, UL |
| Temp Rating | 40C |
| Construction Features | High Interrupting Capacity, Interchangeable Trip Unit, HACR Rated, Trip-Free Mechanism, Common Trip |
Product FAQs
6 answersWhat does the "WL" suffix mean in the THJK636400WL catalog number?
The "WL" suffix indicates that the circuit breaker comes factory-equipped with both line and load side lugs.
Which enclosures and panels are compatible with the THJK636400WL breaker?
This J-Frame breaker is designed for use in GE J600 enclosures, GE A-Series panelboards, switchboards, and motor control centers.
Does this breaker feature an adjustable trip setting?
Yes, it features a thermal-magnetic trip unit with a fixed thermal element and an adjustable magnetic trip for short-circuit protection.
Can the THJK636400WL be used in direct current systems?
Yes, this breaker is rated for DC applications up to 500VDC, providing an interrupting capacity of 40kA at 250VDC and 20kA at 500VDC.
Are the trip units on the THJK636400WL interchangeable?
Yes, the THJK frame utilizes interchangeable trip units. This allows you to change the amperage rating by swapping the trip unit without replacing the entire breaker frame.
What is the difference between GE THJK and TJK circuit breakers?
THJK breakers offer a higher interrupting capacity than standard TJK frames, though they share the same physical dimensions and mounting requirements.
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