ABB / General Electric THKMA826800 Molded Case Circuit Breaker
- 800A
- 2 Pole
- Bolt-On
Quantity
ABB / General Electric THKMA826800 - 800A 2 Pole Molded Case Circuit Breaker
Re-Certified
Quantity
Description
Rated for 65kAIC at 240V, this two-pole molded case circuit breaker delivers heavy-duty thermal-magnetic protection for industrial environments. It installs into legacy GE A-Series panelboards and switchboards without requiring extensive retrofits. Equipped with load lugs and an interchangeable trip unit, the THKMA826800 ensures precise overcurrent management while replacing older TKMA series hardware.Specifications
| Brand | ABB / General Electric |
|---|---|
| Part Number | THKMA826800-R |
| Series | THKMA |
| Amperage | 800A |
| Poles | 2 |
| Mounting Style | Bolt-On |
| Voltage | 240VAC, 480VAC, 600VAC, 250VDC |
| Phase | 1 |
| AIC Rating | 65kA @ 240VAC, 35kA @ 480VAC, 25kA @ 600VAC, 40kA @ 250VDC |
| Frame Type | TKM |
|---|---|
| Terminal Type | Lugs |
| For Use With | GE A-Series Panelboards, Switchboards, Motor Control Centers |
| Wire Gauge | (3) 3/0 AWG-500 kcmil (Cu/Al) |
| 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, Alarm Switch, Lug Kits |
|---|---|
| Accessories | Load Lugs (TCAL81) |
| Standards | CSA C22.2 No. 5, NEMA AB-1, UL 489 |
| Approval | CSA, UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated, Interchangeable Trip, High Interrupting Capacity |
Product FAQs
6 answersWhat enclosures and panelboards are compatible with the THKMA826800?
This 800A bolt-on breaker is designed for installation in GE A-Series panelboards, switchboards, and motor control centers that accept K-frame molded case circuit breakers.
What are the wire size requirements for the load side lugs?
The factory-installed load lugs accept three 3/0 AWG to 500 kcmil conductors per phase. They are rated for both copper (Cu) and aluminum (Al) wire.
How does the trip unit adjustability function on this TKM frame breaker?
The THKMA826800 features a thermal-magnetic trip unit with a fixed thermal element for long-time overload protection and an adjustable magnetic element to set the instantaneous short-circuit trip threshold.
Can the trip unit be swapped out later if load requirements change?
Yes, this breaker utilizes an interchangeable trip unit design. You can replace or upgrade the trip unit without having to remove the entire TKM frame from the switchboard.
Will I receive an ABB or GE branded breaker when ordering the THKMA826800?
Because ABB acquired GE Industrial Solutions, this exact K-frame breaker is manufactured under both brand names. The form, fit, function, and UL listings are identical regardless of the logo on the label.
Is the THKMA826800 rated for direct current (DC) systems?
Yes, in addition to its AC ratings, this breaker is rated for use in 250VDC systems with a maximum interrupting capacity of 40kA.
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