Built for advanced control, the Square D KAL36175-1021 is a 3-pole, 175A molded case circuit breaker featuring a factory-installed 120-240VAC shunt trip for remote disconnection. This unit mount K-Frame breaker fits Square D enclosures, switchboards, and motor control centers. When upgrading, it is replaced by the JGL36175, which requires a separate shunt trip and retrofit kit. Delivering 25kAIC at 480VAC, it includes an adjustable magnetic trip, Visi-Trip indicator, and HACR rating.
What does the -1021 suffix mean on the Square D KAL36175-1021?
The -1021 suffix indicates that this circuit breaker includes a factory-installed 120/240VAC shunt trip for remote tripping applications.
What is the modern replacement for the legacy Square D KAL36175-1021?
The KAL series is a legacy K-Frame breaker. The modern equivalent is the PowerPact J-Frame series, such as the JGL36175. Upgrading to a PowerPact breaker requires a separate shunt trip accessory and may require a retrofit kit depending on your enclosure.
What wire sizes are accepted by the lugs on the KAL36175-1021?
The factory lugs on this K-Frame breaker accept 4 AWG to 350 kcmil aluminum or copper wire.
Is the trip unit on the KAL36175-1021 adjustable?
This breaker features a thermal magnetic trip unit with a fixed thermal element for long-time protection and an adjustable magnetic element for instantaneous short-circuit protection.
What does the LI trip function code mean on this breaker?
The LI designation indicates that the thermal magnetic trip unit provides Long-Time (L) overload protection and Instantaneous (I) short-circuit protection.
What types of equipment is the KAL36175-1021 compatible with?
This unit-mount breaker is designed for use in compatible Square D enclosures, switchboards, motor control centers, and industrial control panels.
How is the KAL36175-1021 mounted in a panel?
This is a unit-mount, or feed-thru, circuit breaker. It is secured using mounting hardware rather than plugging in or bolting onto a busbar like I-Line breakers.
SuperClub
Join free. Get 500 SuperPoints.
Earn points on eligible purchases and redeem them at checkout.
We source obsolete and hard-to-find parts every day.
Shipping
Free Shipping Policy
Parcel shipments with item value over $99 qualify for free economy shipping within the continental US. Please call to confirm special handling instructions. We do not charge a handling fee or require a minimum amount on any order. SuperBreakers does not ship on customer accounts.
We strive to ship out your items the same day the order is placed. In rare circumstances SuperBreakers may reserve up to 5 business days to consolidate orders for complete shipment.
Expedited Shipments
Orders being shipped via Next Day Air, 2 Day Shipping or 3 Day Shipping must be received by 3 PM EST to guarantee same-day shipments. Expedited orders only ship on normal business days. Shipments will NOT be sent out on Saturdays and Sundays.
International Shipping
All International orders require a $1,000 minimum order threshold. Due to the special nature of these shipments, we require that these be placed with a SuperBreakers representative. Additional shipping and instructions will apply. All International Orders are Non-Cancel and Non-Refundable.
Reviews
Review summary
Customers rate this product 5.0 out of 5 based on 3 reviews.