ABB / General ElectricTHKMA836600
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ABB / General Electric THKMA836500 Molded Case Circuit Breaker
- 500A
- 3 Pole
- Bolt-On
ABB / General Electric
THKMA836500
Molded Case Circuit Breaker
Brand
ABB / General Electric
SKU
THKMA836500
Quantity
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ABB / General Electric THKMA836500 - 500A 3 Pole Molded Case Circuit Breaker
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Description
Part of GE's legacy K-frame lineup, the THKMA836500 is a 3-pole, 500A molded case circuit breaker built for commercial and industrial applications. This bolt-on breaker mounts into GE A-Series panelboards and switchboards. It replaces older TKMA836500 units and upgrades to Spectra RMS SKHA36AT0500 or Tmax XT5 models via retrofit. Featuring an interchangeable thermal-magnetic trip unit, it provides 65kAIC at 240V and 35kAIC at 480V. The unit includes load lugs and is HACR rated.Specifications
| Brand | ABB / General Electric |
|---|---|
| Part Number | THKMA836500 |
| Series | THKMA |
| Amperage | 500A |
| 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 |
| Terminal Type | Lugs |
|---|---|
| For Use With | GE Switchboards, Motor Control Centers, GE A-Series Panelboards |
| 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 | High Interrupting Capacity, Interchangeable Trip Unit |
Product FAQs
5 answersWhich panelboards and enclosures are compatible with the THKMA836500?
This K-frame breaker is designed for use in GE A-Series panelboards, GE switchboards, and motor control centers.
What does the adjustable magnetic trip function allow the user to do?
The adjustable magnetic trip allows the installer to set the instantaneous short-circuit response threshold to coordinate with other protective devices in the system, while the thermal overload protection remains fixed at 500 amps.
Can the THKMA836500 be used in direct current systems?
Yes, this breaker is rated for DC applications. It provides up to 40kA interrupting capacity at 250VDC and 22kA at 500VDC.
Why is this breaker listed under both ABB and General Electric?
GE's industrial circuit breaker division was acquired by ABB. As a result, this legacy K-frame breaker may be branded as either ABB or General Electric, but it remains an exact replacement for existing GE switchboards and motor control centers.
What wire sizes are accepted by the standard lugs on this breaker?
The standard lugs accept copper or aluminum conductors ranging from 3/0 AWG to 500 kcmil.
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