ABB / General ElectricTHKMA836500
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ABB / General Electric THKMA836600 Molded Case Circuit Breaker
- 600A
- 3 Pole
- Bolt-On
ABB / General Electric
THKMA836600
Molded Case Circuit Breaker
Brand
ABB / General Electric
SKU
THKMA836600
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ABB / General Electric THKMA836600 - 600A 3 Pole Molded Case Circuit Breaker
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Description
Built for demanding commercial environments, the GE THKMA836600 delivers 600 amps of continuous current capacity. This 3-pole K-Frame breaker is an essential component for heavy-duty power distribution systems. The unit utilizes a standard bolt-on mounting style, making it fully compatible with GE A-Series panelboards and switchgear. It effectively replaces legacy TKMA836600 models. Equipped with an interchangeable thermal-magnetic trip unit, it achieves a 35kA interrupting rating at 480VAC.Specifications
| Brand | ABB / General Electric |
|---|---|
| Series | THKMA |
| Amperage | 600A |
| Poles | 3 |
| Mounting Style | Bolt-On |
| Voltage | 240VAC, 480VAC, 600VAC, 250VDC, 500VDC |
| Phase | 3 |
| AIC Rating | 65kA @ 240VAC, 35kA @ 480VAC, 25kA @ 600VAC, 40kA @ 250VDC, 22kA @ 500VDC |
| Frame Type | K |
|---|---|
| Terminal Type | Lugs |
| For Use With | GE A-Series Panelboards, Switchboards, Motor Control Centers |
| Wire Gauge | (2) 2/0 AWG - 500 kcmil (Cu/Al) |
| Max Wire | 500 kcmil |
| Min Wire | 2/0 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 Lugs (TCAL61) |
| Standards | CSA C22.2 No. 5, NEMA AB 1, UL 489 |
| Approval | CSA, UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated, Interchangeable Trip, High Interrupting Capacity |
Product FAQs
6 answersWhich panelboards are compatible with the THKMA836600 circuit breaker?
This K-frame breaker is designed for bolt-on installation in GE A-Series panelboards, as well as compatible GE switchboards and motor control centers.
How is the trip unit configured on the THKMA836600?
It features a thermal magnetic trip unit with fixed thermal protection for overloads and an adjustable magnetic setting for short-circuit protection. This allows electricians to fine-tune the instantaneous trip response based on the specific load requirements.
Is the THKMA836600 rated for direct current applications?
Yes, this breaker is rated for DC systems. It provides an interrupting capacity of 40kA at 250VDC and 22kA at 500VDC, making it suitable for specialized industrial control environments.
What size wire can the lugs on this 600A breaker accommodate?
The factory lugs accept two conductors per phase, ranging from 2/0 AWG to 500 kcmil. They are rated for both copper and aluminum wiring.
Why is this breaker listed under both ABB and General Electric?
ABB acquired GE Industrial Solutions in 2018. Legacy GE molded case circuit breakers, including the THKMA series, are now manufactured and supported under the ABB brand portfolio while maintaining the original GE design and footprint.
What precautions should be taken when adjusting the magnetic trip settings?
Adjustments to the instantaneous magnetic trip should only be performed by a qualified electrician following a coordination study. Incorrect settings can compromise system safety or cause nuisance tripping during motor startup.
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