This XPSAF safety module monitors emergency shutdown pushbuttons and limit switches. It meets the requirements of Performance Level PL e/Category 4 conforming to standard EN/ISO 13849-1 and SILCL3 conforming to EN/IEC 61508 and EN/IEC 62061. It can be used for monitoring emergency stop circuits conforming to standards EN/ISO 13850 and EN/IEC 60204-1 and electrical monitoring of switches activated by protection devices conforming to standard EN/ISO 14119. 24V AC supply allows direct supply via an auxiliary transformer, like ABT7 or ABL6, allowing saving at installation time.