Safety relay (standalone) Inputs: 1-/2-channel wiring with/without detection of shorts across contacts. Outputs: 3 N/O, 1 N/C, 2 N/O delayed UB -24 V DC (Japan), width: 112.5 mm, integral screw terminals, Monitoring E-STOP, safety gates with two freely selectable delay-on de-energisation contacts, 12 stages from 0 – 20/0 – 3 s.