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This listing is for a USED Ferraz Shawmut US143I UltraSafe Fuse Holder. The US143I is a 3-pole modular fuse holder designed for 14×51 mm IEC ferrule fuses and is part of the UltraSafe finger-safe fuse holder family. This unit is rated for up to 750 VAC IEC, 800 VAC UL, 1000 VDC UL, and 50A. The US143I features a visual blown-fuse indicator, DIN rail mounting capability, IP20 finger-safe protection, and pressure plate terminals for industrial power distribution, motor drives, UPS systems, and inverter protection applications.
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