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Square D KHL36150 Molded Case Circuit Breaker

  • 150A
  • 3 Pole
  • Unit Mount
Square D KHL36150
Molded Case Circuit Breaker
Brand Square D
SKU KHL36150
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  • 150A
  • 3 Pole
  • Unit Mount

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Square D KHL36150 3 Pole Circuit Breaker

Square D KHL36150 - 150A 3 Pole Molded Case Circuit Breaker

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$3,109.81 In Stock

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Description

Designed for heavy-duty commercial use, the Square D KHL36150 is a 3-pole, 150-amp molded case circuit breaker providing essential LI overcurrent protection. This unit-mount device fits seamlessly into Square D switchboards and enclosures. For facilities modernizing equipment, this legacy model is replaced by the JGL36150. Equipped with an adjustable magnetic trip, it allows for precise coordination. It boasts a 65 kAIC rating at 240VAC and is HACR rated for HVAC equipment.

Specifications

Key specifications
Brand Square D
Part Number KHL36150
Series KHL
Amperage 150A
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
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 HACR Rated, High Interrupting Capacity

Product FAQs

6 answers
What is the modern replacement for the legacy KHL36150 circuit breaker?

For facilities modernizing their electrical infrastructure, this legacy K-frame breaker is typically replaced by the PowerPact J-frame JGL36150. Upgrading to a newer frame style may require mounting adapters or panel modifications.

What types of equipment are compatible with the KHL36150?

This unit-mount circuit breaker is designed for installation in standard Square D enclosures, switchboards, and motor control centers. It features a feed-thru connection and is not compatible with I-Line panelboards.

What does the H in the KHL frame designation signify?

The H indicates that this is a high-interrupting capacity breaker within the Square D K-frame family. It delivers a 35 kAIC rating at 480VAC, offering higher fault current protection than standard KAL or KCL models.

How is the trip unit configured on the KHL36150?

This breaker utilizes a thermal-magnetic trip unit with a fixed thermal element for long-time overcurrent protection and an adjustable magnetic element. The adjustable magnetic trip allows electricians to fine-tune the instantaneous short-circuit response for precise system coordination.

Can the KHL36150 circuit breaker be reverse fed?

Yes, standard thermal-magnetic K-frame breakers can generally be reverse fed. Because it does not have dedicated line and load markings, power can be supplied to either the top or bottom lugs.

Is the KHL36150 rated for HVAC applications?

Yes, this breaker is HACR rated, meaning it is certified for use with heating, air conditioning, and refrigeration equipment, as well as group motor applications.

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