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Square D KHL36125 Molded Case Circuit Breaker

  • 125A
  • 3 Pole
  • Unit Mount
Square D KHL36125
Molded Case Circuit Breaker
Brand Square D
SKU KHL36125
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  • 125A
  • 3 Pole
  • Unit Mount

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Square D KHL36125 3 Pole Circuit Breaker

Square D KHL36125 - 125A 3 Pole Molded Case Circuit Breaker

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$3,109.81 In Stock

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Description

A dependable choice for industrial facilities, the Square D KHL36125 is a 125A, 3-pole molded case circuit breaker. It mounts into standard Square D enclosures, switchboards, and motor control centers to deliver long-time and instantaneous (LI) trip functions. This legacy K-Frame breaker features adjustable magnetic trip settings and a high interrupting capacity of 35kAIC at 480VAC. For modern upgrades, this unit is officially replaced by the newer PowerPacT J-Frame (JGL36125) series.

Specifications

Key specifications
Brand Square D
Part Number KHL36125
Series KHL
Amperage 125A
Poles 3
Mounting Style Unit Mount
Voltage 240VAC, 480VAC, 600VAC, 250VDC
Phase 3
AIC Rating 65kA @ 240VAC, 35kA @ 480VAC, 25kA @ 600VAC, 10kA @ 250VDC
Fit and installation
Frame Type KHL
Terminal Type Lugs
For Use With Square D Enclosures, Switchboards, Motor Control Centers
Wire Gauge 4 AWG - 350 kcmil (Al/Cu)
Max Wire 350 kcmil
Min Wire 4 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, Padlock Attachment
Accessories Lugs (AL250KA)
Standards CSA C22.2 No. 5, IEC 60947-2, NEMA AB 1, UL 489
Approval CE, CSA, HACR, UL
Temp Rating 40C
Construction Features High Interrupting Capacity, HACR Rated

Product FAQs

6 answers
What type of mounting does the KHL36125 use?

The KHL36125 is a unit-mount, feed-thru circuit breaker. It is designed to be bolted directly to a backpan or mounting bracket and uses lug-to-lug wire connections, rather than plugging into an I-Line bus.

What is the magnetic trip adjustment range for this breaker?

The KHL36125 features an adjustable magnetic (instantaneous) trip range of 625A to 1250A. The thermal (long-time) trip is fixed at 125A.

Which standard lug kit is used on the KHL36125?

This legacy K-Frame breaker typically uses the AL250KA mechanical lug kit. These lugs accept one 4 AWG to 350 kcmil aluminum or copper conductor per phase.

Is the KHL36125 still in active production?

The KHL series is a legacy K-Frame breaker. For modern upgrades and new installations, Schneider Electric replaces this footprint with the PowerPact H-Frame (such as the HDL36125) or J-Frame (such as the JGL36125) series, depending on your specific enclosure and mounting requirements.

Can the KHL36125 be reverse fed?

Yes, standard thermal-magnetic K-Frame breakers like the KHL36125 do not have line and load side restrictions and can be safely reverse fed if required by your panel configuration.

What enclosures are compatible with the KHL36125?

This unit-mount breaker is designed for use in standard Square D individual enclosures, switchboards, and motor control centers that are built to accommodate the legacy K-Frame footprint.

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