BH 5910 safemaster is a multi-function safety module that meets the EN 954-1 safety class 4. It supports 8 emergency stop buttons, 4 emergency stop buttons, 4 contactless safety devices, 2 emergency stop buttons, 4 protective doors, 2 protective doors and 1 emergency stop button, 4 pair of double-hand safety buttons type III A according to DIN EN 574 or 2 pair of double-hand safety buttons type III C according to DIN EN 574 and 1 emergency stop button. It also supports automatic or manual start, continuously monitored return circuit for connection of external contactors, short circuit and wire break detection, 3 contacts or 2 contacts and 1 open, 2 semiconductor outputs, short circuit and overload protection, undervoltage and overvoltage detection and signaling