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
3RH29112HA11 auxiliary switch, on the front, 1 NO + 1 NC, .1/.2, .3/.4, --/--, --/--, current path: 1 NC, 1 NO, --, --, spring-loaded terminal, for contactors 3RT2 and contactor relays 3RH2