ABB / General Electric THJK436125WL Molded Case Circuit Breaker
- 125A
- 3 Pole
- Unit Mount
Quantity
ABB / General Electric THJK436125WL - 125A 3 Pole Molded Case Circuit Breaker
New
Quantity
Description
Built for seamless integration, the GE THJK436125WL is a 3-pole, 125A molded case circuit breaker from the J600 line. It is designed to deliver high interrupting capacity for commercial and industrial electrical systems. This unit mount MCCB installs into GE J600 enclosures, switchboards, and motor control centers. Unlike the standard model, this version comes with factory-installed line and load lugs for immediate wiring.Specifications
| Brand | ABB / General Electric |
|---|---|
| Part Number | THJK436125WL |
| Series | THJK |
| Amperage | 125A |
| 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, Lug Kits |
|---|---|
| Accessories | Line and Load 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, Common Trip, Trip-Free Mechanism, HACR Rated |
Product FAQs
9 answersWhat equipment is compatible with the THJK436125WL breaker?
This breaker is designed for use in GE J600 enclosures, switchboards, and motor control centers.
What does the WL suffix mean in the THJK436125WL catalog number?
The WL suffix indicates that the circuit breaker comes with factory installed copper and aluminum compatible lugs on both the line and load sides.
Can the trip unit on the THJK436125WL be replaced or changed?
Yes, this breaker features an interchangeable thermal magnetic trip unit, allowing you to swap the trip element without replacing the entire breaker frame.
Are the lugs on the THJK436125WL rated for aluminum wire?
Yes, the factory installed lugs are dual rated for both copper and aluminum conductors.
Can I run parallel conductors to the lugs on this breaker?
Yes, the lugs accept either a single conductor from 6 AWG to 600 kcmil or two conductors from 2/0 AWG to 250 kcmil per phase.
Can the THJK436125WL be used in DC electrical systems?
Yes, this breaker is rated for DC applications, providing up to 40kA interrupting capacity at 250VDC and 20kA at 500VDC.
Is this breaker manufactured by GE or ABB?
The THJK436125WL was originally designed by General Electric. Following the acquisition of GE Industrial Solutions by ABB, these breakers are now manufactured and supported under the ABB brand.
Can the THJK436125WL be mounted on a standard DIN rail?
No, this is a unit mount, feed-thru molded case circuit breaker designed to be bolted directly to a backpan or mounting plate in compatible enclosures and switchboards.
What does the LI trip function on this breaker indicate?
The LI designation means the trip unit provides Long-Time protection against overloads and Instantaneous protection against short circuits. The magnetic trip is adjustable, while the thermal trip is fixed.
SuperClub
Join free. Get 500 SuperPoints.
Earn points on eligible purchases and redeem them at checkout.
100 SuperPoints = $1 off.
Warranties
Add an extra year of protection
60-Day Warranty
Your purchase includes 60 days of SuperBreakers warranty coverage.
Add a 1-year warranty extension in your cart.
Get a Quote
Don’t see what you’re looking for?
We source obsolete and hard-to-find parts every day.
Shipping
Free Shipping Policy
Parcel shipments with item value over $99 qualify for free economy shipping within the continental US. Please call to confirm special handling instructions. We do not charge a handling fee or require a minimum amount on any order. SuperBreakers does not ship on customer accounts.
Same Day Shipping
We strive to ship out your items the same day the order is placed. In rare circumstances SuperBreakers may reserve up to 5 business days to consolidate orders for complete shipment.
Expedited Shipments
Orders being shipped via Next Day Air, 2 Day Shipping or 3 Day Shipping must be received by 3 PM EST to guarantee same-day shipments. Expedited orders only ship on normal business days. Shipments will NOT be sent out on Saturdays and Sundays.
International Shipping
All International orders require a $1,000 minimum order threshold. Due to the special nature of these shipments, we require that these be placed with a SuperBreakers representative. Additional shipping and instructions will apply. All International Orders are Non-Cancel and Non-Refundable.