auxiliary switch, on the front, 4 NO, 53/54, 63/64, 73/74, 83/84, current path: 1 NO, 1 NO, 1 NO, 1 NO, screw terminal, physically coded, only with contactor relays 3RH2140 and 3RH2440 combinable (according to EN 50011)
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