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ABB / General Electric THKMA836800 Molded Case Circuit Breaker

  • 800A
  • 3 Pole
  • Bolt-On
ABB / General Electric THKMA836800
Molded Case Circuit Breaker
Brand ABB / General Electric
SKU THKMA836800
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  • 800A
  • 3 Pole
  • Bolt-On

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ABB / General Electric THKMA836800 - 800A 3 Pole Molded Case Circuit Breaker

ABB / General Electric THKMA836800 - 800A 3 Pole Molded Case Circuit Breaker

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$28,841.08 In Stock

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Description

Engineered for industrial applications, the GE THKMA836800 delivers 800 amps of reliable circuit protection. It utilizes an interchangeable thermal-magnetic trip unit. Designed for bolt-on connections, this breaker integrates into GE A-Series panelboards. It replaces discontinued TKMA836800 breakers to maintain system uptime. With an interrupting capacity of 35kA at 480VAC, it handles significant fault currents. The unit is HACR rated and accepts field-installable accessories.

Specifications

Key specifications
Brand ABB / General Electric
Part Number THKMA836800-R
Series THKMA
Amperage 800A
Poles 3
Mounting Style Bolt-On
Voltage 240VAC, 480VAC, 600VAC, 250VDC, 500VDC
Phase 3
AIC Rating 65kA @ 240VAC, 35kA @ 480VAC, 25kA @ 600VAC, 40kA @ 250VDC, 22kA @ 500VDC
Fit and installation
Frame Type THKMA
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
Protection and operation
Trip Technology Thermal Magnetic
Trip Function Code LI
Trip Function Long-Time, Instantaneous
Trip Adjustability Fixed Thermal, Adjustable Magnetic
Standards and features
Available Options Shunt Trip, Auxiliary Switch, Undervoltage Release, Alarm Switch, Lug Kits
Accessories Load Side Lugs Included
Standards CSA C22.2 No. 5, NEMA AB 1, UL 489
Approval CSA, UL
Temp Rating 40C
Construction Features HACR Rated, High Interrupting Capacity, Interchangeable Trip Unit

Product FAQs

6 answers
Which distribution equipment accepts the THKMA836800?

This K-frame breaker mounts directly into GE A-Series panelboards, switchboards, and motor control centers that accommodate bolt-on K1200 line breakers.

What are the lug wire size requirements for the THKMA836800?

The included line and load lugs accept three 3/0 AWG to 500 kcmil copper or aluminum conductors per phase.

How does the LI trip function operate on this breaker?

The thermal magnetic trip unit provides fixed thermal protection for long time overloads (L) and features an adjustable magnetic dial to set the instantaneous (I) short circuit trip threshold.

Is the THKMA836800 suitable for reverse feeding?

No. GE K-frame breakers with interchangeable trip units, including the THKMA series, are not suitable for reverse feed applications.

What is the difference between GE TKMA and THKMA breakers?

The THKMA series features a higher interrupting capacity of 35kA at 480VAC, whereas the standard TKMA series is rated for 30kA at 480VAC. Both share the same K-frame dimensions and mounting.

Why is this breaker listed under both ABB and General Electric?

Following ABB's acquisition of GE Industrial Solutions, legacy GE breakers like the K-frame series are transitioning to ABB branding. The physical dimensions, mounting, and performance specifications remain identical regardless of the logo on the label.

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