ABB / General Electric THJK436350 Molded Case Circuit Breaker
- 350A
- 3 Pole
- Unit Mount
Quantity
ABB / General Electric THJK436350 - 350A 3 Pole Molded Case Circuit Breaker
Re-Certified
Quantity
Description
Engineered for industrial power distribution, the THJK436350 is a 3-pole, 350A unit mount molded case circuit breaker from GE's J600 series. It provides robust long-time and instantaneous (LI) thermal-magnetic protection for demanding commercial applications. This J-frame breaker mounts into GE switchboards, motor control centers, and compatible J600 enclosures. It features an interchangeable trip unit and includes load-side lugs for flexible installation.Specifications
| Brand | ABB / General Electric |
|---|---|
| Part Number | THJK436350-R |
| Series | THJK |
| Amperage | 350A |
| 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 |
| Terminal Type | Lugs |
|---|---|
| For Use With | GE J600 Enclosures, Switchboards, 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, Lug Kits |
|---|---|
| Accessories | Load Side Lugs Included |
| 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 |
Product FAQs
6 answersWhich enclosures are compatible with the THJK436350 circuit breaker?
This unit mounts directly into GE J600 enclosures, as well as compatible legacy General Electric switchboards and motor control centers.
What are the accepted wire sizes for the lugs on this breaker?
The standard lugs accept either a single wire from 6 AWG to 600 kcmil or two wires from 2/0 AWG to 250 kcmil. Both copper and aluminum conductors are supported.
Does this breaker feature adjustable trip settings?
Yes, it features a thermal magnetic trip unit with a fixed thermal element for long-time overload protection and an adjustable magnetic element for instantaneous short-circuit protection.
Why is this breaker listed under both ABB and General Electric?
ABB acquired GE Industrial Solutions in 2018. Legacy GE molded case circuit breakers like the THJK series are now managed under the ABB brand portfolio.
How is this breaker mounted within a panel?
It utilizes a bolt-on connection for unit mounting, meaning it is secured directly to the busbar or mounting pan with bolts rather than snapping into place.
Can this breaker be used in direct current applications?
Yes, it is rated for DC applications, providing up to 40kA interrupting capacity at 250VDC and 20kA at 500VDC.
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