Skip to content
  • Product Image of KH36125 - 125 Amp Circuit Breaker #1
** Picture is for identification purposes only and may not represent the actual amperage of the product listed **
scroll for more

KH36125 - 125 Amp Circuit Breaker

  • 125 Amp
  • 25k @ 600VAC; 35k @ 480VAC; 65k @ 240VAC
  • 3 Pole
Circuit BreakersSKU: KH36125

Purchase Options:

KH36125 - 125 Amp Circuit Breaker Description

KH36125 - 125 Amp Circuit Breaker

Built to guard critical electrical systems with precision, the KH36125 circuit breaker delivers dependable protection in three-phase infrastructures. Rated at 125 amps and featuring a 3-pole configuration, it defends your system against overloads, short circuits, and fault conditions. Designed for industrial and commercial use, it brings reliability and clarity to power distribution setups — letting your operations run safely and without interruption.

Key Features and Benefits

  • Three-pole Protection: Ensures balanced, coordinated interruption on all phases, reducing system stress.
  • High Interrupting Capacity: Handles severe fault currents gracefully — 25 kA at 600 VAC, 35 kA at 480 VAC, and 65 kA at 240 VAC.
  • Compact Footprint: 4.50″ W × 10.50″ L × 4.38″ D fits into standard panelboards or switchgear layouts without waste.
  • Straightforward Installation: Streamlines setup and maintenance — ideal for retrofit or new builds.
  • Thermal–Magnetic Trip Design: Provides dual protection — thermal for overload, magnetic for short circuits.
  • Panel Compatibility: Works with I-Line systems, offering flexibility for many existing electrical installations.
  • Each feature is there not just to list specs, but to underline how the product works for your customer: safer systems, simpler installs, fewer surprises.

Technical Specifications

  • Poles: 3
  • Rated Current: 125 A
  • Interrupting Capacity (A.I.C.):
    • 25 kA @ 600 VAC
    • 35 kA @ 480 VAC
    • 65 kA @ 240 VAC
  • Frame Type: KH
  • Dimensions:
    • Width: 4.50 inches
    • Length: 10.50 inches
    • Depth: 4.38 inches
  • Ship Weight: ≈ 12 lbs
  • Frequency: 60 Hz
  • Temperature Rating: 40 °C
  • Trip Mechanism: Thermal–Magnetic, molded case
  • Panel Compatibility: I-Line panelboards
  • These specs help engineers and purchasing managers confirm fit and function without digging through datasheets.

Material Compliance and Certifications

  • UL Listed: Meets internationally recognized safety standards.
  • RoHS Compliant: Reduced levels of hazardous substances.
  • Industrial Safety Compliance: Designed to current industrial safety norms, ensuring reliable performance and compliance in demanding environments.
  • These credentials build trust: your buyers know this breaker meets regulatory expectations and environmental responsibility.

Where It Works Best

  • The KH36125 is ideal for power systems that demand high reliability and protection — think manufacturing plants, commercial buildings, data centers, or distribution panels. Whether installed in motor control centers, switchgear, or branch circuits serving heavy machinery, this breaker delivers peace of mind. It’s a strong choice when you need a device that defends your infrastructure, runs quietly in the background, and doesn’t force overengineering or extra space.

 


Use of Original Equipment Manufacturer (OEM) trademarks, names, and logos is for informational and identification purposes only. This does not imply any affiliation, sponsorship, endorsement, or approval by the original equipment manufacturer. All trademarks and registered trademarks are the property of their respective owners.

<

Specifications

  • Width:4.5
  • Height:10.5
  • Depth:4.38
  • Poles:3
  • Amperes:125
  • A.I.C. Rating & Volts:25k @ 600VAC; 35k @ 480VAC; 65k @ 240VAC
  • Type:KH
  • Approx Dimensions:4.50"W x 10.50"L x 4.38"D
  • Additional Notes:60Hz, 40å¡C, Thermal Magnetic, Molded Case Circuit Breaker, for I-Line Panelboards

Returns are easy

You may return unused items within 30 days of delivery for a full refund.

FREE shipping on breaker orders over $100 and all other items with orders over $500.

CIRCUIT BREAKER SUPERSTORE® offers one to five day delivery in the United States. The variation depends on the chosen shipping speed and the warehouse location for the product(s).

Same Day Shipping

We strive to ship out your items within one business day.

In rare circumstances, CIRCUIT BREAKER SUPERSTORE® may reserve up to 5 business days to complete shipment. Feel free to contact us if your order is time sensitive.

CIRCUIT BREAKER SUPERSTORE® provides a limited 1-year warranty on both new and reconditioned products. Rest assured, all products are authentic OEM (original equipment manufacturer).

Similar Products

Why Us?

Free Shipping

Free shipping on orders over $100

100k+ Happy Customers

4.9 Google rating

Secure Shopping

Feel protected with every transaction