Siemens 3RH2911-1HA22 AUX.SWITCH BLOCK,FRONT,2NO+2NC. auxiliary switch, on the front, 2 NO + 2 NC, .1/.2, .1/.2, .3/.4, .3/.4, current path: 1 NC, 1 NC, 1 NO, 1 NO, screw terminal, for contactors 3RT2 and contactor relays 3RH2. It belongs to Instantaneous. Recorded manufacturer technical characteristics include Protection class: IP20; Number of NC contacts: 2; Number of NO contacts: 2; Rated impulse voltage: 6 kV; Rated insulation voltage: 690 V; Operating current DC-13 (24V): 6 A; Operating current AC-12 (230V): 10 A; Operating current AC-15 (230V): 6 A.