ABB / General ElectricTKMA836500WL
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ABB / General Electric TKMA836450WL Molded Case Circuit Breaker
- 450A
- 3 Pole
- Unit Mount
ABB / General Electric
TKMA836450WL
Molded Case Circuit Breaker
Brand
ABB / General Electric
SKU
TKMA836450WL
Quantity
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ABB / General Electric TKMA836450WL - 450A 3 Pole Molded Case Circuit Breaker
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Description
Part of the legacy K1200 series, the GE TKMA836450WL is a 3-pole, 450A molded case circuit breaker. It is designed for reliable power distribution in commercial and industrial environments. This unit mount MCCB installs into compatible GE switchboards, motor control centers, and standalone enclosures. For future upgrades, it can be replaced by the Tmax XT5 series using a retrofit kit. The breaker features an interchangeable trip unit with fixed thermal and adjustable magnetic protection.Specifications
| Brand | ABB / General Electric |
|---|---|
| Part Number | TKMA836450WL |
| Series | TKMA |
| Amperage | 450A |
| 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 | (2) 2/0 AWG - 500 kcmil (Al/Cu) |
| Max Wire | 500 kcmil |
| Min Wire | 2/0 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, Motor Operator |
|---|---|
| Accessories | Line & Load Lugs (TCAL61) |
| Standards | CSA C22.2 No. 5, NEMA AB 1, UL 489 |
| Approval | CSA, UL |
| Temp Rating | 40C |
| Construction Features | Interchangeable Trip Unit, HACR Rated |
Product FAQs
7 answersWhat are the wire size requirements for the TKMA836450WL?
The factory-installed lugs accommodate two 2/0 AWG to 500 kcmil conductors per phase, and are rated for both aluminum and copper wire.
Where is the TKMA836450WL typically installed?
This unit-mount breaker is designed for integration into legacy GE switchboards, motor control centers, and standalone enclosures.
How does the trip unit operate on the TKMA836450WL?
It utilizes a thermal-magnetic trip unit featuring a fixed thermal element for long-time overload protection and an adjustable magnetic element for instantaneous short-circuit protection.
What does the WL suffix in the TKMA836450WL catalog number mean?
The WL suffix indicates that the breaker is supplied with factory-installed line and load lugs.
What frame size is the TKMA836450WL?
It is part of the legacy GE K-Frame family, specifically utilizing the TKM frame design.
Is the TKMA836450WL suitable for DC voltage applications?
Yes, in addition to its AC ratings, this breaker is rated for 250VDC applications with a 20kA interrupting capacity.
Why is this breaker listed as both ABB and General Electric?
ABB acquired GE Industrial Solutions in 2018. Depending on the manufacturing date, the TKMA836450WL may feature either ABB or GE branding, but the physical dimensions, fit, and function remain identical.
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