Allen-Bradley 1492-IFMFH1 Fuse Holder

The Allen-Bradley 1492-IFMFH1 Fuse Holder is a replacement accessory in Rockwell Automation’s 1492 wiring-system family that accepts a standard 5 x 20 mm fuse or the 1492-ISOSW-1 isolation switch plug, enabling integrated overcurrent protection within 1492 IFM or AIFM configurations. Designed to reside inside 1492 interface modules during normal operation, it provides a compact, replaceable fuse path for control circuits in industrial panels and OEM equipment. By supporting a common fuse size, the 1492-IFMFH1 simplifies procurement and maintenance across Rockwell-installed systems while remaining compatible with the broader 1492 ecosystem. This fuse holder plays a key role in protecting wiring, relays, and I/O circuits routed through 1492 IFM modules, with the isolation-switch plug option offering convenient service access without disturbing surrounding wiring. The part is cataloged as a 1492 accessory within the Allen-Bradley 1492 series, reflecting the modular, cohesive approach Rockwell uses for protection components in control panels.