Siemens RFJ3-B250N molded-case circuit breaker provides a 250 A rated current in a 3-pole, 600 V AC frame, designed for three-phase distribution in panelboards and equipment enclosures. It features a thermal-magnetic trip unit for overload and short-circuit protection. The N in B250N denotes a neutral-terminal arrangement, and this unit is part of Siemens' SENTRON molded-case family for low-voltage protection.
