ABB / General ElectricTKMA836450WL
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ABB / General Electric TKMA836300WL Molded Case Circuit Breaker
- 300A
- 3 Pole
- Unit Mount
ABB / General Electric
TKMA836300WL
Molded Case Circuit Breaker
Brand
ABB / General Electric
SKU
TKMA836300WL
Quantity
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ABB / General Electric TKMA836300WL - 300A 3 Pole Molded Case Circuit Breaker
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Description
Built for industrial power distribution, the TKMA836300WL is a 3-pole, 300A molded case circuit breaker from GE's legacy K-Frame lineup. It delivers reliable overcurrent protection for heavy-duty systems. This unit-mount breaker installs into compatible GE switchboards, motor control centers, and enclosures. For facility upgrades, it can be replaced by the modern Tmax XT5 series via retrofit kits. Rated for 30kAIC at 480VAC, it features an interchangeable thermal-magnetic trip unit.Specifications
| Brand | ABB / General Electric |
|---|---|
| Part Number | TKMA836300WL |
| Series | TKMA |
| Amperage | 300A |
| 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 | (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, Motor Operator |
|---|---|
| Accessories | Line and 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, HACR Rated |
Product FAQs
6 answersWhat does the WL suffix mean in the TKMA836300WL catalog number?
The WL suffix indicates that the circuit breaker is factory-supplied with both line and load lugs. If ordered without this suffix, the breaker may come without line lugs, requiring them to be sourced separately.
What equipment is the TKMA836300WL designed to be installed in?
As part of the legacy GE K1200 Line (K-Frame), this unit-mount breaker is compatible with traditional GE switchboards, motor control centers, and industrial enclosures requiring a feed-thru connection.
What wire sizes and materials are supported by the lugs on the TKMA836300WL?
The included lugs are rated for either copper or aluminum (Cu/Al) conductors and accept one wire per phase ranging from 4 AWG to 600 kcmil.
What is the modern replacement for the legacy GE TKMA836300WL?
For panel upgrades or replacing obsolete K-Frame units, the TKMA836300WL can be upgraded to the modern ABB Tmax XT5 series molded case circuit breaker using an appropriate retrofit kit.
Is the trip unit on the TKMA836300WL fixed or interchangeable?
The TKMA836300WL features an interchangeable thermal-magnetic trip unit. This allows the trip unit to be swapped out for another compatible K1200 line trip element if your continuous current requirements change, without needing to replace the entire breaker frame.
How does the thermal-magnetic trip function operate on the TKMA836300WL?
This breaker provides long-time and instantaneous (LI) protection. The thermal element for long-time overload protection is fixed at 300A, while the magnetic element for instantaneous short-circuit protection is adjustable to suit your specific system coordination needs.
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