Turck MS1-22Ex0-R Switching Amplifier Relay

The TURCK MS1-22EX0-R Switching Amplifier Relay is a two-channel, intrinsically safe interface that provides NAMUR-compatible signal interfacing and two SPDT relay outputs for hazardous-area control networks, powered from a 115 VAC nominal supply. It supports an operating voltage range of 20-250 VAC or 20-125 VDC, a frequency range of 40-70 Hz, and NAMUR-compatible input with 8 VDC nominal input voltage, 8 mA nominal input current, and a 1.55 mA switching threshold, with inputs designed for NAMUR sensors, dry contacts, and potential-free contacts per EN 60947-5-6. Each output handles up to 250 VAC or 60 VDC with a maximum switching current of 4 A per channel and 1000 VA / 60 W per output, with galvanic isolation between input, output, and supply circuits; the unit is DIN rail mountable and IP20-rated, and carries ATEX II (1) GD, [Ex ia] IIC hazardous-area approvals for use in refinery, chemical processing, burner management, tank monitoring, mining, and PLC or DCS panels. Common replacements include TURCK IM1-22EX-R and MK13-22EX0-R, making it a suitable upgrade or retrofit for safety-instrumented systems requiring safe signal transmission between hazardous and non-hazardous areas.