ABB / General ElectricTJK436250
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ABB / General Electric TJK436300 Molded Case Circuit Breaker
- 300A
- 3 Pole
- Bolt-On
ABB / General Electric
TJK436300
Molded Case Circuit Breaker
Brand
ABB / General Electric
SKU
TJK436300
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ABB / General Electric TJK436300 - 300A 3 Pole Molded Case Circuit Breaker
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Description
Designed for commercial and industrial distribution, this 300A J-Frame breaker provides robust overcurrent protection. It integrates seamlessly into GE J600 panelboards, switchboards, and motor control centers requiring a bolt-on configuration. Equipped with an interchangeable thermal-magnetic trip unit, the device offers fixed long-time and adjustable instantaneous magnetic settings. With a 42kA interrupting capacity at 240VAC, it handles demanding fault conditions reliably.Specifications
| Brand | ABB / General Electric |
|---|---|
| Part Number | TJK436300-R |
| Series | TJK |
| Amperage | 300A |
| 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 |
| Terminal Type | Lugs |
|---|---|
| For Use With | GE J600 Panelboards, 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 | Lugs (TCAL43) |
| Standards | CSA C22.2 No. 5, UL 489, NEMA AB 1 |
| Approval | CSA, UL |
| Temp Rating | 40C |
| Construction Features | Interchangeable Trip Unit, HACR Rated, Trip-Free Mechanism, Quick-Make/Quick-Break |
Product FAQs
5 answersWhich panelboards are compatible with the TJK436300 breaker?
This J-frame breaker is designed for installation in legacy GE J600 series panelboards, as well as compatible GE switchboards and motor control centers.
What wire sizes are accepted by the standard lugs on this breaker?
The standard lugs accept either one 6 AWG to 600 kcmil copper or aluminum conductor, or two 2/0 AWG to 250 kcmil copper or aluminum conductors per phase.
How is the trip unit configured on the TJK436300?
It features a thermal-magnetic trip unit with fixed thermal protection for overloads and an adjustable magnetic trip setting for instantaneous short-circuit protection.
Is this breaker suitable for direct current systems?
Yes, it is rated for DC applications up to 500VDC, providing a 20kA interrupting capacity at both 250VDC and 500VDC.
Why is this breaker listed under both ABB and General Electric?
ABB acquired GE Industrial Solutions. Legacy GE molded case circuit breakers like the TJK series are now managed and supported under the ABB brand portfolio.
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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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