ABB / General Electric THKM836600 Molded Case Circuit Breaker
- 600A
- 3 Pole
- Unit Mount
Quantity
ABB / General Electric THKM836600 - 600A 3 Pole Molded Case Circuit Breaker
Re-Certified
Quantity
Description
Engineered for commercial and industrial applications, this 600A K-Frame MCCB features an interchangeable thermal magnetic trip unit for reliable long-time and instantaneous (LI) protection. This unit mount breaker installs into GE A-Series panelboards, Spectra Series switchboards, and motor control centers. It serves as a direct replacement for older installations and is superseded by the SKHA36AT0600. Rated for 35kAIC at 480VAC, the THKM836600 delivers high interrupting capacity.Specifications
| Brand | ABB / General Electric |
|---|---|
| Part Number | THKM836600-R |
| Series | THKM |
| Amperage | 600A |
| Poles | 3 |
| Mounting Style | Unit Mount |
| Voltage | 600VAC, 250VDC |
| Phase | 3 |
| AIC Rating | 65kA @ 240VAC, 35kA @ 480VAC, 25kA @ 600VAC, 10kA @ 250VDC |
| Terminal Type | Lugs |
|---|---|
| For Use With | GE A-Series Panelboards, Spectra Series Switchboards, Motor Control Centers |
| Wire Gauge | (3) 3/0 AWG - 500 kcmil (Cu/Al) |
| Max Wire | 500 kcmil |
| Min Wire | 3/0 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 | Line and Load Lugs Included |
| Standards | CSA C22.2 No. 5, NEMA AB 1, UL 489 |
| Approval | CSA, UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated, High Interrupting Capacity, Interchangeable Trip Unit |
Product FAQs
8 answersWhat equipment is the THKM836600 compatible with?
This 600A K-frame breaker is designed for use in GE A-Series panelboards, Spectra Series switchboards, and compatible motor control centers.
What wire sizes are accepted by the lugs on the THKM836600?
The standard lugs accept up to three conductors per phase, accommodating 3/0 AWG to 500 kcmil copper or aluminum wire.
How does the adjustable magnetic trip function work on this breaker?
The THKM836600 features a fixed thermal element for overload protection and an adjustable magnetic element. The adjustable magnetic trip allows electricians to set the instantaneous short circuit pickup level to coordinate with other devices in the electrical system.
Can the THKM836600 be used in direct current (DC) systems?
Yes, this breaker is rated for DC applications up to 250VDC with an interrupting capacity of 10kAIC.
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 THKM series, are now manufactured and supported under the ABB brand portfolio.
How is the THKM836600 installed into a panelboard?
This is a unit mount, bolt-on circuit breaker. It secures directly to the panel or switchboard chassis using bolted connections rather than plugging into a busbar.
What does the 'H' in the THKM prefix designate?
In GE nomenclature, the 'H' indicates a high interrupting capacity version of the standard K-frame breaker. The THKM836600 provides a 35kAIC rating at 480VAC.
What type of protection does the LI trip function provide?
The LI designation stands for Long-Time and Instantaneous protection. Long-Time protects against sustained overloads, while Instantaneous trips the breaker immediately during a severe short circuit.
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