ABB / General Electric TKM836350 Molded Case Circuit Breaker
- 350A
- 3 Pole
- Bolt-On
Quantity
ABB / General Electric TKM836350 - 350A 3 Pole Molded Case Circuit Breaker
Re-Certified
Quantity
Description
Engineered for commercial and industrial applications, this 350-amp molded case circuit breaker provides dependable overcurrent protection. It mounts securely into GE switchboards, motor control centers, and Type CCB panelboards. Featuring a 30 kAIC rating at 480VAC, the unit includes an interchangeable trip unit and fixed thermal, adjustable magnetic trip functions. It serves as a seamless replacement for older systems, though it has been superseded by the Spectra Series SKHA36AT0350.Specifications
| Brand | ABB / General Electric |
|---|---|
| Part Number | TKM836350-R |
| Series | TKM |
| Amperage | 350A |
| 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 Switchboards, Motor Control Centers, Type CCB Panelboards |
| Wire Gauge | (3) 3/0 AWG - 500 kcmil (Al/Cu) |
| Max Wire | 500 kcmil |
| Min Wire | 3/0 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, Lug Kits |
|---|---|
| Accessories | Includes TCAL81 Lugs |
| Standards | CSA C22.2 No. 5, IEC 60947-2, NEMA AB 1, UL 489 |
| Approval | CSA, UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated, Interchangeable Trip Unit, Reverse Feed |
Product FAQs
5 answersWhat enclosures or panelboards is the TKM836350 compatible with?
This legacy K-Frame breaker is designed for use in GE switchboards, motor control centers, and Type CCB panelboards. When installing in CCB or AV-1 and AV-2 panelboards, specific mounting hardware such as the TKM12K strap kit is typically required.
How does the adjustable magnetic trip function work on this breaker?
The TKM836350 features a thermal-magnetic trip unit with a fixed thermal element for overload protection and an adjustable magnetic element. This allows electricians to fine-tune the instantaneous short-circuit trip threshold to properly coordinate with other protective devices in the system.
What wire sizes and materials are supported by the TKM836350 lugs?
The breaker lugs are designed to accept up to three aluminum or copper conductors per phase, ranging from 3/0 AWG to 500 kcmil.
Is the GE TKM836350 an obsolete circuit breaker?
Yes, the TKM frame is a legacy General Electric K-Frame breaker that is now obsolete and managed under the ABB legacy portfolio. It is commonly sourced as a direct replacement to maintain existing commercial infrastructure without requiring a complete panel retrofit.
Can the TKM836350 be used in DC applications?
Yes, in addition to its standard AC ratings, this breaker is rated for up to 250VDC with a 20kA interrupting capacity. This makes it suitable for specific direct current distribution systems and industrial control applications.
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