The PSR-MXF multifunctional safety relay accepts as many as three dual-channel safety sensors: two local, independent sensor circuits, as well as an overriding safety circuit useful for simultaneous shutdown. At 22.5 mm, the relay is rated for SIL 3, Category 4 and PLe. The device requires zero software or turnstile configurations as it depends on simplified, wire-only configurations. The relay is available in four types of connection technology, including push-in technology.