The Weidmuller WSI 4 is a high-quality fuse terminal designed for reliable short circuit and overload protection. Featuring a robust screw connection and a compact 1-level design, this terminal block is suitable for a wide range of applications. Its black color and standard TS 35 mounting make it a versatile addition to any electrical system.The Weidmuller WSI 4 is a 1-level fused DIN rail terminal with a screw connection. It has a rated voltage of 500V and a terminal block current of 6.3A. The terminal supports cable cross-sections up to 4mm² and wire sizes from 30AWG to 12AWG. It has a pitch of 8mm and dimensions of 8mm width, 50.7mm height, and 42.5mm depth. The operating temperature range is -50°C to 120°C.