This XPSAXE 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. 24V AC/DC supply allows direct supply via an auxiliary transformer, like ABT7 or ABL6, allowing saving at installation time. It has removable terminals for easier and better control wires tightening, thus improving installation reliability.