ABB / General Electric THJK436300WL Molded Case Circuit Breaker
- 300A
- 3 Pole
- Unit Mount
Quantity
ABB / General Electric THJK436300WL - 300A 3 Pole Molded Case Circuit Breaker
New
Quantity
Quantity
ABB / General Electric THJK436300WL - 300A 3 Pole Molded Case Circuit Breaker
New
Quantity
| Brand | ABB / General Electric |
|---|---|
| Part Number | THJK436300WL |
| Series | THJK |
| Amperage | 300A |
| 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 | TJK |
|---|---|
| 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 |
|---|---|
| Accessories | Line and Load Lugs Included |
| Standards | CSA C22.2 No. 5.1, NEMA AB 1, UL 489 |
| Approval | CSA, UL |
| Temp Rating | 40C |
| Construction Features | High Interrupting Capacity, Interchangeable Trip Unit |
Quantity
ABB / General Electric THJK436300WL - 300A 3 Pole Molded Case Circuit Breaker
Re-Certified
Quantity
| Brand | ABB / General Electric |
|---|---|
| Part Number | THJK436300WL-R |
| Series | THJK |
| Amperage | 300A |
| 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 | TJK |
|---|---|
| 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 |
|---|---|
| Accessories | Line and Load Lugs Included |
| Standards | CSA C22.2 No. 5.1, NEMA AB 1, UL 489 |
| Approval | CSA, UL |
| Temp Rating | 40C |
| Construction Features | High Interrupting Capacity, Interchangeable Trip Unit |
Description
Engineered for industrial applications, the GE THJK436300WL delivers reliable overcurrent protection for heavy-duty 600VAC electrical systems. This 3-pole, 300A molded case circuit breaker features an interchangeable thermal-magnetic trip unit. Designed for unit-mount configurations, it installs into GE J600 enclosures, switchboards, and motor control centers. It serves as a direct replacement for older TJK436300WL models, helping facilities maintain existing infrastructure.Specifications
| Brand | ABB / General Electric |
|---|---|
| Part Number | THJK436300WL |
| Series | THJK |
| Amperage | 300A |
| 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 | TJK |
|---|---|
| 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 |
|---|---|
| Accessories | Line and Load Lugs Included |
| Standards | CSA C22.2 No. 5.1, NEMA AB 1, UL 489 |
| Approval | CSA, UL |
| Temp Rating | 40C |
| Construction Features | High Interrupting Capacity, Interchangeable Trip Unit |
Product FAQs
6 answersWhat types of enclosures are compatible with the THJK436300WL breaker?
This J-Frame breaker is designed to install into GE J600 line enclosures, as well as compatible switchboards and motor control centers.
What does the WL suffix in the THJK436300WL catalog number indicate?
The WL suffix means the circuit breaker comes equipped with factory-installed line and load lugs that accept both copper and aluminum conductors.
What wire sizes are accepted by the lugs on this 300A breaker?
The terminals accept either a single 6 AWG to 600 kcmil conductor or dual 2/0 AWG to 250 kcmil conductors per phase. They are rated for both copper and aluminum wiring.
How does the trip unit operate on the THJK436300WL?
It utilizes 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.
Will this breaker arrive with ABB or General Electric branding?
Following ABB acquiring GE Industrial Solutions, this breaker may feature either ABB or GE branding depending on the production batch. The physical dimensions, mounting, and electrical specifications remain identical.
Can the THJK436300WL be used in DC electrical systems?
Yes, this breaker is rated for DC applications. It provides an interrupting capacity of 40kA at 250VDC and 20kA at 500VDC.
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