Wago 281-603 Industrial DIN Rail Terminal Block

The Wago 281-603 / 281-401 Component Terminal Block is a DIN rail‑mounted, 2‑conductor terminal block with built‑in diode protection designed for secure conductor termination and signal routing in control circuits, automation systems, and electrical distribution assemblies. Its compact DIN rail design supports organized wiring layouts, simplified troubleshooting, and reliable electrical connectivity in PLC cabinets, machine control panels, manufacturing equipment, and process automation systems. The block features a built‑in 1N5408 diode with the anode on the right side to guard against reverse current and transient conditions, delivering circuit protection within a compact 29 mm × 53 mm footprint. Key electrical specs include a rated voltage of 250 V, rated current of 1.5 A, and a conductor size range of 0.08–4.0 mm² (AWG 28–12). Connection is via a CAGE CLAMP spring clamp, and it mounts on DIN rails sized 35 × 15 mm or 35 × 7.5 mm; terminal width is 6 mm. The unit is grey and is intended for wire termination, circuit protection, and signal routing in industrial automation, relay logic, and electrical distribution panels.