WAGO 1881 DIN Rail Mounted Fuse Terminal Block

The WAGO 1881 DIN rail-mounted fuse terminal block is a compact 4-conductor, 4-pin device that combines fused circuit protection with secure wire termination in a single DIN rail-ready package. It is rated for 300 V and 10 A, with a 5.2 mm-wide, industrial-grade insulated housing designed for dense mounting in PLC cabinets, machine control panels, and process automation equipment. This terminal block provides protected field wiring connections and serves as a reliable point for signal distribution and low-current power distribution within industrial control systems, helping protect sensors, control circuits, and field devices while simplifying maintenance and troubleshooting. Its DIN rail mount and high-density design make it suitable for space-constrained installations across manufacturing systems and industrial electrical enclosures. Common replacements include the Wago 2006 Series Fuse Terminal Block, Phoenix Contact UK5-HESI Fuse Terminal Block, and Weidmuller WSI Fuse Terminal Block, reflecting its role in standardized control-panel architectures. Applications span industrial automation, control cabinets, machine wiring, process control equipment, and power distribution panels where secure termination and overcurrent protection are required.