ABB / General ElectricTKMA836450WL
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ABB / General Electric TKMA836400WL Molded Case Circuit Breaker
- 400A
- 3 Pole
- Unit Mount
ABB / General Electric
TKMA836400WL
Molded Case Circuit Breaker
Brand
ABB / General Electric
SKU
TKMA836400WL
Quantity
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ABB / General Electric TKMA836400WL - 400A 3 Pole Molded Case Circuit Breaker
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Description
Built for industrial applications, the GE TKMA836400WL is a 3-pole, 400A molded case circuit breaker from the legacy K1200 line. It delivers robust overcurrent protection for demanding distribution systems. This unit mount MCCB installs into compatible GE switchboards, motor control centers, and AV1 panelboards. It can be replaced by the newer Tmax XT5 series using a retrofit kit. Featuring an interchangeable trip unit, it provides fixed thermal and adjustable magnetic protection up to 42kAIC.Specifications
| Brand | ABB / General Electric |
|---|---|
| Part Number | TKMA836400WL |
| Series | TKMA |
| Amperage | 400A |
| Poles | 3 |
| Mounting Style | Unit Mount |
| Voltage | 240VAC, 480VAC, 600VAC, 250VDC |
| Phase | 3 |
| AIC Rating | 42kA @ 240VAC, 30kA @ 480VAC, 22kA @ 600VAC, 20kA @ 250VDC |
| Frame Type | TKM |
|---|---|
| Terminal Type | Lugs |
| For Use With | GE Switchboards, Motor Control Centers, GE CCB Panelboards, GE AV1 Panelboards |
| Wire Gauge | (1) 6 AWG - 600 kcmil or (2) 2/0 AWG - 250 kcmil (Al/Cu) |
| 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, Undervoltage Release, Auxiliary Switch, Alarm Switch, Motor Operator |
|---|---|
| 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 | Interchangeable Trip Unit, HACR Rated, Reverse Feed |
Product FAQs
7 answersWhich panelboards and switchboards accept the TKMA836400WL?
This unit-mount K-Frame breaker is designed for installation in legacy GE CCB and AV1 panelboards, as well as compatible GE switchboards and motor control centers.
Are terminal lugs included with the TKMA836400WL?
Yes, this breaker is supplied with factory-installed lugs on both the line and load sides, ready for wire termination.
What wire sizes are accepted by the standard lugs on this 400A breaker?
The terminals accommodate either a single 6 AWG to 600 kcmil conductor or dual 2/0 AWG to 250 kcmil conductors per phase, and are rated for both aluminum and copper wiring.
Can the trip settings be adjusted on the TKMA836400WL?
The thermal element for long-time overload protection is fixed, but the magnetic element for instantaneous short-circuit protection is adjustable to suit specific load requirements.
Is the TKMA836400WL suitable for direct current applications?
Yes, it is rated for DC systems up to 250VDC, where it provides an interrupting capacity of 20kA.
Is the TKMA836400WL an ABB or General Electric product?
This is a legacy General Electric K-Frame circuit breaker. Following ABB acquiring GE Industrial Solutions, it is now supported and distributed under the ABB brand.
How is the TKMA836400WL mounted within an enclosure?
It is a unit-mount, feed-thru breaker that bolts directly to the equipment chassis or mounting pan, rather than plugging into a centralized busbar.
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