3RH2911-1HA13 SIEMENS Auxiliary switch on the front, 1 NO + 3 NC Current path 1 NC, 1 NC, 1 NC, 1 NO for 3RH and 3RT screw terminal .1/.2, .1/.2, .1/.2, .3/.4
3RH2911-1HA22 SIEMENS 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