For flush and surface mounting No power consumption in standby. Control with 8 - 230 V/UC. The following functions can be selected by means of a rotary switch: Surge current switch or switching relay 2 closer · Surge current switch or switching relay 1 closer/1 opener · Series switch 1 + 1 closer switching sequence 1 · Switching relay (idling current relay) 2 opener · Series switch 1 + 1 closer switching sequence 2 · Switch-on wiping-relay 1 closer/1 opener (wiping time 1 s) · Group switch or group relay 1 + 1 closer. Switching sequences: 0/contact 1 (1-2)/contact 2 (3-4)/contacts 1 + 2 · 0/contact 1/contacts 1 + 2/contact 2 · 0/contact 1/0/contact 2 · Relay with changing closing contact.