AUXILIARY SWITCH BLOCK, 1 NO,

"front-side auxiliary switch, 1 NO contact, screw terminal, for contactors 3RT1 auxiliary switch SIRIUS 3RH19 for the expansion of auxiliary contacts in the control circuit. This 3RH19 auxiliary switch can be fitted to 3RT1 contactors and 3RH1 contactor relays of sizes S0-S12 without the need for tools. The 3RH19/3RH29 auxiliary switch blocks are available as versions for front or lateral mounting, with up to four instantaneous contacts or up to two leading NO and NC contacts. The auxiliary switches can be designed as positively driven contacts in 3RH contactor relays or also as mirror contacts in the case of 3RT power contactors. They are all available with a screw-type and spring-type connections. Simple, efficient and always up to date - SIRIUS modular system."