JK3225F - Westinghouse Molded Case Circuit Breaker
Westinghouse JK series three pole 225 ampere bolt-on molded case circuit breaker with maximum voltage rating of 600V trip type thermal magnetic and high interrupting rating of 30 kiloampere at 480V functions long-time and instantaneous complete with load side lug terminals.
Is the Westinghouse JK3225F still in active production?
No, the Westinghouse JK series is a legacy product. Eaton acquired the Westinghouse circuit breaker division, and modern replacements are typically found within the Eaton Series C J-Frame family.
What equipment is compatible with the JK3225F circuit breaker?
This breaker is designed to mount into legacy Westinghouse panelboards, switchboards, and motor control centers that accept bolt-on J-Frame circuit breakers.
What wire sizes do the load-side lugs on this breaker accept?
Standard J-Frame terminal lugs, such as the TA250KB, typically accommodate copper or aluminum conductors ranging from #4 AWG to 350 kcmil.
Does the JK3225F require line-side lugs for installation?
No, this is a bolt-on circuit breaker. The line side bolts directly to the panelboard busbar, so line-side lugs are not required. It comes complete with load-side lug terminals for your outgoing connections.
What are the safety requirements for installing a bolt-on J-Frame breaker?
Always de-energize the panelboard or switchboard before installation. Verify that the busbar connections are clean and torque the bolt-on connections to the manufacturer specified values to prevent arcing and overheating.
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