Designed for heavy-duty commercial and industrial applications, this 200-amp, 3-pole molded case circuit breaker is part of the classic Mark 75 K-Frame series. It provides essential long-time and instantaneous (LI) overcurrent protection to keep facility power distribution networks running safely. This unit installs into existing Eaton Series C panelboards, Mark 75 enclosures, and compatible switchboards. When transitioning to newer equipment, the HKD3200 serves as the substitute.
High Interrupting Capacity, Interchangeable Trip Unit
Product FAQs
6 answers
Which panelboards are compatible with the HKB3200 circuit breaker?
This K-frame breaker is designed for use in Eaton Series C panelboards, legacy Mark 75 panelboards, and compatible switchboards. It mounts directly to the bus using a bolt-on configuration.
Can the Eaton HKB3200 replace an older Westinghouse HKB3200?
Yes. Eaton acquired the Westinghouse distribution equipment division. A modern Eaton or Cutler-Hammer HKB3200 is a direct, drop-in replacement for legacy Westinghouse breakers with the exact same catalog number.
What is the difference between the standard KB3200 and the HKB3200?
The H prefix designates a high-interrupting capacity version. While a standard KB frame has lower fault current ratings, the HKB3200 provides up to 65kA at 240VAC and 25kA at 480VAC, making it suitable for commercial or industrial systems with higher available fault currents.
How is the trip unit configured on this breaker?
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 trip settings can be adjusted on the face of the breaker to coordinate with downstream loads.
What wire sizes are accepted by the standard lugs on the HKB3200?
The standard factory lugs accept wire gauges ranging from 3 AWG up to 350 kcmil. Ensure proper torque specifications are followed during installation to prevent terminal overheating.
What precautions should be taken when installing this bolt-on K-frame breaker?
Always verify that the panel or switchboard is fully de-energized before installation. Because this is a bolt-on breaker, the mounting hardware must be torqued to the manufacturer specifications to ensure a secure connection to the busbars and prevent arcing.
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.