ABB / General ElectricTKMA836800WL
ABB / General Electric TKMA31200WL Molded Case Circuit Breaker
- 1200A
- 3 Pole
- Unit Mount
ABB / General Electric
TKMA31200WL
Molded Case Circuit Breaker
Brand
ABB / General Electric
SKU
TKMA31200WL
Quantity
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ABB / General Electric TKMA31200WL - 1200A 3 Pole Molded Case Circuit Breaker
Re-Certified
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ABB / General Electric TKMA31200WL - 1200A 3 Pole Molded Case Circuit Breaker
New
Quantity
| Brand | ABB / General Electric |
|---|---|
| Part Number | TKMA31200WL |
| Series | TKMA |
| Amperage | 1200A |
| 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, Enclosures |
| Wire Gauge | (4) 250-350 kcmil (Cu) or (4) 250-500 kcmil (Al) |
| Max Wire | 500 kcmil |
| Min Wire | 250 kcmil |
| 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 and Load Lugs (TCAL121) |
| Standards | UL 489, NEMA AB-1, CSA C22.2 No. 5 |
| Approval | CSA, UL |
| Temp Rating | 40C |
| Construction Features | Interchangeable Trip Unit, Reverse Feed |
Quantity
ABB / General Electric TKMA31200WL - 1200A 3 Pole Molded Case Circuit Breaker
Re-Certified
Quantity
| Brand | ABB / General Electric |
|---|---|
| Part Number | TKMA31200WL-R |
| Series | TKMA |
| Amperage | 1200A |
| 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, Enclosures |
| Wire Gauge | (4) 250-350 kcmil (Cu) or (4) 250-500 kcmil (Al) |
| Max Wire | 500 kcmil |
| Min Wire | 250 kcmil |
| 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 and Load Lugs (TCAL121) |
| Standards | UL 489, NEMA AB-1, CSA C22.2 No. 5 |
| Approval | CSA, UL |
| Temp Rating | 40C |
| Construction Features | Interchangeable Trip Unit, Reverse Feed |
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Description
Designed for standalone enclosure mounting, the GE TKMA31200WL delivers 1200A of thermal-magnetic protection. Unlike standard bolt-on models, this unit-mount (feed-thru) K-frame breaker comes equipped with line and load lugs (TCAL121) for flexible installation in switchboards and motor control centers. It features an interchangeable trip unit with long-time and instantaneous (LI) functions. Rated at 42kAIC at 240VAC, it provides robust overcurrent defense for demanding industrial applications.Specifications
| Brand | ABB / General Electric |
|---|---|
| Part Number | TKMA31200WL-R |
| Series | TKMA |
| Amperage | 1200A |
| 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, Enclosures |
| Wire Gauge | (4) 250-350 kcmil (Cu) or (4) 250-500 kcmil (Al) |
| Max Wire | 500 kcmil |
| Min Wire | 250 kcmil |
| 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 and Load Lugs (TCAL121) |
| Standards | UL 489, NEMA AB-1, CSA C22.2 No. 5 |
| Approval | CSA, UL |
| Temp Rating | 40C |
| Construction Features | Interchangeable Trip Unit, Reverse Feed |
Product FAQs
9 answersWhat does the "WL" suffix in the TKMA31200WL catalog number indicate?
The "WL" suffix designates that the breaker is supplied with factory-installed line and load lugs. GE circuit breaker models ordered without this suffix typically do not include line-side lugs.
What type of equipment is the TKMA31200WL designed to fit?
This legacy K-Frame molded case circuit breaker is engineered for unit-mount installations in General Electric switchboards, motor control centers (MCCs), and individual enclosures.
What is the conductor capacity for the standard lugs on this 1200A breaker?
The included lugs are configured to accept four wires per phase. They accommodate wire sizes ranging from (4) 250 to 350 kcmil for copper (Cu) conductors or (4) 250 to 500 kcmil for aluminum (Al) conductors.
Are the trip settings on the TKMA31200WL adjustable?
Yes, this breaker uses an interchangeable thermal-magnetic trip unit featuring a fixed thermal element for long-time overcurrents and an adjustable magnetic element to dial in the instantaneous trip threshold.
What is the difference between GE TKMA and THKMA circuit breakers?
The TKMA series features a standard interrupting capacity, rated at 30kAIC at 480VAC. The THKMA series is the high-interrupting capacity version of the same K-Frame, which bumps the interrupting rating to 35kAIC or higher at 480VAC.
Can the TKMA31200WL circuit breaker be reverse-fed?
Yes, this thermal-magnetic K-Frame breaker is rated for reverse-feed applications. Installers must still verify that the specific panelboard or enclosure is listed to accept reverse-fed breakers before installation.
Is the trip unit on this K-Frame breaker permanently fixed to the frame?
No, the TKMA31200WL features an interchangeable trip unit design. This allows the thermal-magnetic module to be replaced without removing the entire circuit breaker frame from the bus structure.
Does this breaker provide ground fault protection?
No, the TKMA31200WL uses an LI (Long-Time and Instantaneous) trip unit. It provides standard thermal overload and magnetic short-circuit protection, but does not include integrated ground fault (G) protection capabilities.
What are the primary safety requirements when replacing this 1200A MCCB?
Installation must be performed by a qualified electrician. Always completely de-energize, lock out, and tag out (LOTO) the switchgear power feed and verify zero voltage with a properly rated meter before accessing any busbars or terminals.
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