ABB / General Electric TKMA836400 Molded Case Circuit Breaker
- 400A
- 3 Pole
- Bolt-On
Quantity
ABB / General Electric TKMA836400 - 400A 3 Pole Molded Case Circuit Breaker
Re-Certified
Quantity
Description
Designed for heavy-duty applications, this 400A, 3-pole molded case circuit breaker ensures safe electrical distribution across commercial facilities. It utilizes thermal-magnetic trip technology to handle overloads and short circuits effectively. The breaker bolts securely into GE A-Series panelboards, switchboards, and MCCs. For future-proofing, it is fully cross-referenced to be replaced by the ABB Tmax XT5 platform. It delivers a 42kAIC rating at 240VAC and includes load lugs.Specifications
| Brand | ABB / General Electric |
|---|---|
| Part Number | TKMA836400-R |
| Series | TKMA |
| Amperage | 400A |
| 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 | TKM |
|---|---|
| Terminal Type | Lugs |
| For Use With | GE A-Series Panelboards, GE Switchboards, Motor Control Centers |
| Wire Gauge | (1) 4 AWG-600 kcmil (Cu/Al) |
| Max Wire | 600 kcmil |
| Min Wire | 4 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 (TCAL41) |
| 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
6 answersWhich panelboards and enclosures are compatible with the TKMA836400 breaker?
This K-Frame breaker is designed for installation in GE A-Series panelboards, GE switchboards, and compatible motor control centers.
What are the acceptable wire sizes for the load side lugs on this 400A breaker?
The factory-installed load side lugs accept one copper or aluminum conductor ranging from 4 AWG to 600 kcmil.
Is the trip unit on the TKMA836400 adjustable?
Yes, it features an interchangeable thermal-magnetic trip unit with a fixed thermal element for long-time protection and an adjustable magnetic element for instantaneous short-circuit protection.
Can the TKMA836400 be utilized in direct current systems?
Yes, this breaker is rated for DC applications, providing an interrupting capacity of 20kA at 250VDC.
What frame size does the TKMA836400 belong to?
It is part of the legacy GE K-Frame family, specifically utilizing the TKM frame design.
How does this breaker connect to the busbar?
The TKMA836400 utilizes a bolt-on connection for secure mounting directly to the bus in compatible GE distribution equipment.
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