Built for commercial and industrial applications, the HDL36125AA is a 3-pole, 125A molded case circuit breaker from the PowerPacT H-Frame family. This unit-mount MCCB installs into switchboards and enclosures, and can replace legacy KAL361251212 breakers with a retrofit. A key feature is the factory-installed 1A/1B auxiliary switch, enabling remote status monitoring. It is rated 18kAIC at 480VAC and includes Visi-Trip technology for rapid fault identification.
What does the AA suffix indicate on the HDL36125AA circuit breaker?
The AA suffix indicates that this PowerPacT H-Frame breaker comes equipped with a factory-installed 1A/1B auxiliary switch for remote status monitoring and signaling circuits.
Is the HDL36125AA an I-Line or unit-mount breaker?
This is a unit-mount, feed-thru circuit breaker. It features mechanical lugs on both the line and load sides and is not designed for I-Line panelboard plug-on installation.
Can the HDL36125AA be used to replace legacy KAL series breakers?
Yes, the PowerPacT H-Frame series is the modern replacement for legacy Square D KAL breakers, such as the KAL36125. Depending on your existing switchboard or enclosure, a retrofit kit may be required for installation.
Does the HDL36125AA include a manual test function?
Yes, PowerPacT H-Frame breakers feature an integrated push-to-trip button on the front faceplate. This allows electricians to manually verify the mechanical operation of the tripping mechanism during routine maintenance.
Are the thermal and magnetic trip settings adjustable on this breaker?
No, the HDL36125AA features a fixed thermal and fixed magnetic trip unit. It provides standard Long-Time and Instantaneous protection without adjustable dials for custom trip curves.
Can the Square D HDL36125AA be used in DC applications?
Yes, this breaker is rated for up to 250VDC with an interrupting capacity of 20kAIC. It can be safely deployed in compatible DC control panels and battery systems.
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 4.0 out of 5 based on 1 review.