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.
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.
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.