Siemens Auxiliary switch, front mount, 2NO + 2NC Part number 3RH2911-2GA22

SIRIUS 3RH29 Auxiliary Switch

The SIRIUS 3RH29 auxiliary switch is designed for the expansion of auxiliary contacts in the control circuit.

Technical details:

• Auxiliary switch, on the front
• 2 NO + 2 NC
• Current path: 1 NO, 1 NC, 1 NC, 1 NO
• Spring-loaded terminal
• Physically coded
• Combinable only with contactor relays 3RH2140 and 3RH2440 (according to EN 50011)
• Can be installed on 3RT2 contactors and 3RH2 contactor relays without the need for tools
• Versions available for front or lateral mounting
• Available with screw terminal and spring-type terminal

Customer benefits:

• Simple and efficient installation
• Modular system that is always up to date
• Supports various configurations with up to four instantaneous contacts or up to two leading NO and NC contacts
• Designed as positively driven contacts in 3RH contactor relays or as mirror contacts in the case of 3RT power contactors