Weidmüller RSM4-2RT Brand Introduction Weidmüller RSM4-2RT is multi-channel relay interface module developed by Weidmüller for industrial control cabinet signal isolation and conversion. It specializes in isolating PLC digital signals and driving field loads, using relay dry contacts for safe signal transmission between controller and field equipment. Relay Module is the core unit of Weidmüller RSM4-2RT. Relay Module adopts DIN rail mounted compact structure. Relay Module supports 4-channel relay output with 2RT contact configuration. Relay Module realizes galvanic isolation between control side and field load circuit. Weidmüller RSM4-2RT provides stable Isolation for workshop automation control system. Isolation separates PLC logic circuit from field power circuit. Isolation suppresses surge interference and protects controller I/O ports. Isolation improves system stability under harsh industrial environment. Weidmüller RSM4-2RT features reliable Output for field actuator connection. Output uses relay dry contact switching signal. Output works with 24VDC control coil power supply. Output transmits on-off signal to solenoid valves, contactors and indicator devices. Weidmüller RSM4-2RT is widely used in machinery manufacturing, process industry and legacy automation cabinet renovation. With mature Weidmüller relay interface technology, this module works within temperature range 0~60℃ and has strong anti-interference performance. It provides full lifecycle technical support including wiring, commissioning and after-sales maintenance, serving global users as a trusted multi-channel relay interface module solution.