Engineered for industrial applications, the Square D KAL36150-1212 is a 3-pole, 150A K-Frame molded case circuit breaker. It delivers robust thermal-magnetic protection for commercial distribution systems. This unit-mount breaker installs into Square D enclosures and switchboards. For modern upgrades, it crosses over to the PowerPacT J-Frame series (JGL36150) with the proper retrofit hardware. Rated for 42kAIC at 240VAC, it provides reliable LI protection.
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, Undervoltage Release, Alarm Switch
Accessories
Auxiliary Switch (1A/1B), Lugs (AL250KA)
Standards
CSA C22.2 No. 5, IEC 60947-2, NEMA AB 1, UL 489
Approval
CE, CSA, IEC, UL
Temp Rating
40C
Construction Features
HACR Rated
Product FAQs
5 answers
What does the "-1212" suffix indicate on the KAL36150-1212 breaker?
The "-1212" suffix means the breaker is factory-equipped with a 1A/1B auxiliary switch. This provides one normally open and one normally closed contact for remote status signaling.
Can the KAL36150-1212 circuit breaker be reverse fed?
Yes. Square D KA, KH, and KC series thermal magnetic circuit breakers are UL Listed and CSA Certified for reverse connection without restrictions.
Does the mounting orientation affect the operation of this KAL breaker?
No. Square D K-frame circuit breakers can be mounted and operated in any position, whether vertical or horizontal, without impacting their tripping characteristics.
Is this breaker an I-Line or a unit-mount style?
The KAL36150-1212 is a unit-mount, feed-thru circuit breaker. It is designed to be hardwired via lugs at both ends and is not compatible with Square D I-Line plug-on panelboards.
What safety certifications does the KAL36150-1212 hold?
This K-frame molded case circuit breaker is UL Listed and CSA Certified for use in low voltage distribution systems.
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Reviews
Review summary
Customers rate this product 5.0 out of 5 based on 3 reviews.