ABB / General ElectricTJK436225
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ABB / General Electric TJK436125 Molded Case Circuit Breaker
- 125A
- 3 Pole
- Bolt-On
ABB / General Electric
TJK436125
Molded Case Circuit Breaker
Brand
ABB / General Electric
SKU
TJK436125
Quantity
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ABB / General Electric TJK436125 - 125A 3 Pole Molded Case Circuit Breaker
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Description
Built for commercial and industrial applications, the GE TJK436125 delivers robust thermal-magnetic protection. This 125A, three-pole molded case circuit breaker handles up to 600VAC, making it ideal for heavy-duty electrical distribution. Designed to fit GE A-Series panelboards, J600 panels, and switchboards, it utilizes a secure bolt-on mounting style. It serves as a substitute for TJJ436125 and THJK436125 breakers. The breaker provides a 30kAIC interrupting rating at 480VAC.Specifications
| Brand | ABB / General Electric |
|---|---|
| Part Number | TJK436125 |
| Series | TJK |
| Amperage | 125A |
| Poles | 3 |
| Mounting Style | Bolt-On |
| Voltage | 240VAC, 480VAC, 600VAC, 250VDC, 500VDC |
| Phase | 3 |
| AIC Rating | 42kA @ 240VAC, 30kA @ 480VAC, 22kA @ 600VAC, 20kA @ 250VDC, 20kA @ 500VDC |
| Frame Type | TJK |
|---|---|
| Terminal Type | Lugs |
| For Use With | GE J600 Panelboards, GE A-Series Panelboards, GE Switchboards |
| 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 Lugs Sold Separately (Requires TCAL43) |
| Standards | CSA C22.2 No. 5, NEMA AB 1, UL 489 |
| Approval | CSA, UL |
| Temp Rating | 40C |
| Construction Features | Interchangeable Trip Unit |
Product FAQs
5 answersWhich panelboards are compatible with the TJK436125 circuit breaker?
This J-Frame breaker is designed for installation in GE J600 panelboards, GE A-Series panelboards, and GE switchboards. It requires a bolt-on connection to the bus.
What are the acceptable wire sizes for the lugs on this breaker?
The terminals accommodate either a single conductor from 6 AWG to 600 kcmil or dual conductors from 2/0 AWG to 250 kcmil. Both copper and aluminum wires are supported.
How does the trip unit function on the TJK436125?
It utilizes a thermal-magnetic trip unit equipped with long-time and instantaneous (LI) protection. The thermal element is fixed at 125 amps, while the magnetic instantaneous trip is adjustable to coordinate with downstream loads.
Why might my TJK436125 arrive with ABB branding instead of General Electric?
ABB acquired GE Industrial Solutions in 2018. Depending on the manufacturing date, this legacy J-Frame breaker may feature either ABB or GE branding. The physical dimensions, mounting, and electrical specifications are identical.
Is the TJK436125 rated for direct current (DC) applications?
Yes, in addition to its AC ratings, this breaker is suitable for DC systems. It provides a 20kA interrupting rating at both 250VDC and 500VDC.
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Reviews
Review summary
Customers rate this product 4.7 out of 5 based on 3 reviews.
Total 5 star reviews: 2 Total 4 star reviews: 1 Total 3 star reviews: 0 Total 2 star reviews: 0 Total 1 star reviews: 0
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Rating
3 reviews
- BRBrian R.ReviewingGeneral Electric TJK636F000 Circuit Breaker FrameI recommend this productRated 5 out of 5 stars11/23/20600 AMp breaker
Excellent Price, Excellent Service, speedy delivery!
- JTJames T.ReviewingGeneral Electric TJK636F000 Circuit Breaker FrameI recommend this productRated 5 out of 5 stars8/16/20Replacement breaker needed!
As usual ....the folks at Superbreakers delivered on their promise.
- JMJohn M.ReviewingABB / General Electric TJK636300WL - 300A 3 Pole Molded Case Circuit BreakerI recommend this productRated 4 out of 5 stars10/4/17Dolphins Car Wash
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