Built for heavy-duty commercial environments, this three-phase 225-amp breaker offers dependable long-time and instantaneous trip functions. The Series C K-Frame architecture ensures consistent performance across demanding 240V, 480V, and 600V electrical distribution networks. Electricians rely on this specific model to service older Westinghouse panelboards and Eaton PRL3a systems.
High Interrupting Capacity, Interchangeable Trip Unit
Product FAQs
5 answers
Which panelboards are compatible with the HKL3225 circuit breaker?
This breaker is designed for use in Eaton Pow-R-Line 3a (PRL3a) and Pow-R-Line 4 (PRL4) panelboards, as well as legacy Westinghouse panelboards and switchboards that accept Series C K-Frame breakers.
Are Eaton, Cutler-Hammer, and Westinghouse HKL3225 breakers interchangeable?
Yes. Eaton acquired the Westinghouse distribution equipment business and integrated it into the Cutler-Hammer line. An HKL3225 breaker with any of these brand names shares the exact same physical dimensions, mounting hardware, and electrical characteristics.
How does the HKL3225 differ from a standard KL3225 breaker?
The H prefix designates a high interrupting rating. While both are Series C K-Frame breakers with the same physical footprint and mounting requirements, the HKL provides higher fault current protection than the standard KL series.
Can the trip settings on the HKL3225 be adjusted?
This breaker features a thermal-magnetic trip unit with a fixed thermal element for long-time overload protection and an adjustable magnetic element for instantaneous short-circuit protection. The magnetic response can be tuned using the dials on the front of the breaker to coordinate with downstream devices.
What wire size range do the standard lugs on this breaker accept?
The standard terminal lugs accommodate wire sizes from #3 AWG up to 350 kcmil. Ensure proper torque specifications are followed during installation as outlined on the breaker faceplate.
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.