ABB / General Electric THJK426400WL Molded Case Circuit Breaker
- 400A
- 2 Pole
- Unit Mount
Quantity
ABB / General Electric THJK426400WL - 400A 2 Pole Molded Case Circuit Breaker
New
Quantity
Description
Designed for robust industrial applications, the GE THJK426400WL is a two-pole, 400A molded case circuit breaker from the J600 line. It provides reliable LI protection. This unit-mount breaker installs into GE J600 enclosures and switchboards. The "WL" suffix indicates it includes factory-installed lugs. It can be replaced by the Tmax XT5 series via retrofit kit. Rated for 65kAIC at 240VAC, it features an interchangeable trip unit with adjustable magnetic settings.Specifications
| Brand | ABB / General Electric |
|---|---|
| Part Number | THJK426400WL |
| Series | THJK |
| Amperage | 400A |
| Poles | 2 |
| Mounting Style | Unit Mount |
| Voltage | 240VAC, 480VAC, 600VAC, 250VDC |
| Phase | 1 |
| AIC Rating | 65kA @ 240VAC, 35kA @ 480VAC, 25kA @ 600VAC, 40kA @ 250VDC |
| Terminal Type | Lugs |
|---|---|
| For Use With | GE J600 Enclosures, GE A-Series Panelboards, GE Switchboards, GE Motor Control Centers |
| Wire Gauge | (1) 6 AWG - 600 kcmil (Cu/Al) or (2) 2/0 AWG - 250 kcmil (Cu/Al) |
| Max Wire | 600 kcmil |
| Min Wire | 6 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 (TCAL43) |
| 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 answersWhich GE panels and enclosures are compatible with the THJK426400WL breaker?
This J-Frame breaker is designed for use in GE J600 enclosures, A-Series panelboards, GE switchboards, and GE motor control centers.
What wire sizes and materials are accepted by the lugs on this breaker?
The terminals accept either a single 6 AWG to 600 kcmil conductor or two 2/0 AWG to 250 kcmil conductors per phase. Both copper and aluminum wires are supported.
What does the WL suffix indicate in the THJK426400WL catalog number?
The WL suffix designates that the circuit breaker includes factory-installed line and load lugs.
Does this breaker feature an adjustable trip setting?
Yes, it is equipped with a thermal-magnetic trip unit that features a fixed thermal element for long-time protection and an adjustable magnetic element for instantaneous short-circuit protection.
Is the THJK426400WL suitable for direct current systems?
Yes, this breaker is rated for use in DC applications up to 250VDC, providing a 40kA interrupting capacity.
Can the trip unit be swapped out on this breaker frame?
Yes, the THJK series utilizes an interchangeable trip unit design. This allows you to change the trip rating in the field without replacing the entire J600 breaker frame.
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