Serving as a robust solution for industrial applications, the Siemens FJ3M200 delivers 200A of thermal-magnetic protection. This 3-pole F-frame unit maintains older infrastructure without extensive retrofits. It mounts into legacy ITE FC-20, FCI, and FCII panelboards, plus Siemens P1, P2, and P3 systems. Facility managers use this exact fit component before transitioning to the FXD63B200M substitute. Rated 14kA at 480VAC, it features fixed trip settings and a secure bolt-on design.
Which panelboards and switchboards accept the FJ3M200 circuit breaker?
This bolt-on breaker is compatible with Siemens P1, P2, and P3 panelboards, as well as SB1, SB2, and SB3 switchboards. It also fits legacy ITE FC-20, FCI, and FCII panelboards, making it ideal for maintaining older infrastructure.
What wire sizes and materials are supported by the terminals on this breaker?
The included load side lugs accept conductor sizes ranging from 6 AWG to 350 kcmil. The terminals are rated for use with both copper (Cu) and aluminum (Al) wiring.
Is the trip unit on the FJ3M200 interchangeable?
No, this F-frame breaker comes with a factory-sealed, non-interchangeable thermal-magnetic trip unit. It provides fixed long-time and instantaneous (LI) protection.
Can the Siemens FJ3M200 be used in direct current (DC) systems?
Yes, in addition to its AC ratings, this breaker is rated for use in DC applications up to 250VDC, providing a 10kA interrupting capacity.
Does the FJ3M200 offer standard or high interrupting capacity?
This model is a standard interrupting capacity breaker. It provides a maximum rating of 25kA at 240VAC, and 14kA at both 480VAC and 600VAC.
Is the FJ3M200 considered a legacy component?
Yes, the FJ3M200 is part of the legacy F-frame molded case circuit breaker family originally produced by ITE and Siemens. It is typically sourced as a direct replacement part to avoid complete panel retrofits.
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Review summary
Customers rate this product 5.0 out of 5 based on 3 reviews.