ABB / General Electric TKMA31200 Molded Case Circuit Breaker
- 1200A
- 3 Pole
- Bolt-On
Quantity
ABB / General Electric TKMA31200 - 1200A 3 Pole Molded Case Circuit Breaker
Re-Certified
Quantity
Description
Built for heavy-duty power distribution, this 1200A molded case circuit breaker belongs to the K1200 family. It features an interchangeable trip unit with fixed thermal and adjustable magnetic settings (LI). Designed for commercial and industrial facilities, it mounts into GE A-Series panelboards and switchboards. With an interrupting capacity of 30kA at 480VAC, this bolt-on breaker provides dependable overcurrent protection for critical electrical systems.Specifications
| Brand | ABB / General Electric |
|---|---|
| Part Number | TKMA31200-R |
| Series | TKMA |
| Amperage | 1200A |
| Poles | 3 |
| Mounting Style | Bolt-On |
| Voltage | 240VAC, 480VAC, 600VAC, 250VDC |
| Phase | 3 |
| AIC Rating | 42kA @ 240VAC, 30kA @ 480VAC, 22kA @ 600VAC, 20kA @ 250VDC |
| Frame Type | TKMA |
|---|---|
| Terminal Type | Lugs |
| For Use With | GE A-Series Panelboards, GE Switchboards, Motor Control Centers |
| 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, Lug Kits |
|---|---|
| Accessories | Load Lugs (TCAL121) |
| Standards | CSA C22.2 No. 5, IEC 60947-2, NEMA AB-1, UL 489 |
| Approval | CSA, UL |
| Temp Rating | 40C |
| Construction Features | Interchangeable Trip Unit, Reverse Feed |
Product FAQs
5 answersWhat enclosures and equipment are compatible with the TKMA31200?
This K-frame breaker is designed for bolt-on installation in GE A-Series panelboards, GE switchboards, and motor control centers.
What are the wire size requirements for the load side lugs?
The included load side lugs accept four 250 to 350 kcmil copper conductors or four 250 to 500 kcmil aluminum conductors per phase.
How does the thermal-magnetic trip unit function on this breaker?
The TKMA31200 features Long-Time and Instantaneous (LI) protection. The thermal element provides fixed overload protection, while the magnetic element is adjustable for short-circuit protection.
Can the TKMA31200 be installed in direct current systems?
Yes, this breaker is rated for DC applications and provides an interrupting capacity of 20kA at 250VDC.
Why might this breaker arrive with either ABB or General Electric branding?
ABB acquired GE Industrial Solutions in 2018. Depending on the production batch, the TKMA31200 may feature either ABB or GE labels, but the physical breaker and specifications are identical.
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