Allen-Bradley 440R-S12R2 Guardmaster Safety Relay SI Single Input

Allen-Bradley 440R-S12R2 Guardmaster Safety Relay SI

The 440R-S12R2 is a Guardmaster SI (Single Input) monitoring safety relay designed for machine safety circuits. It provides SIL 3 / PL e / Category 4 safety integrity for applications including emergency stop, safety gate, and safety sensor monitoring. Features dual channel universal safety inputs compatible with E-Stop, safety interlock, and sensor contacts. Configurable: Auto (AM) / Manual Monitored (MM) via front-panel rotary switch. Compact 22.5 mm DIN rail mount housing with removable screw terminals and front-panel LED status indicators (PWR/Fault, IN, OUT).

Tech Data (440R-TD001)

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