Front-mount auxiliary switch for 3RT2/3RH2
The 3RH2911-2FA40-Z W97 is a front-mounted auxiliary switch block for Siemens 3RT2 contactors and 3RH2 contactor relays, providing 4 normally-open (NO) contacts with spring-loaded terminals. Rated for continuous duty in control circuits, each NO contact path is rated for the same switching capacity as the base contactor's auxiliary circuit — no derating needed for the 4-NO configuration.
Active lifecycle and compliance
RoHS compliant since October 1, 2009, and REACH Article 33 candidate list information is available from Siemens upon request.
Physical fit and packaging
The block measures 60 x 54 x 47 mm and snaps onto the front of the contactor or relay — no additional DIN rail space is consumed beyond the base device. Supplied in multi-unit packaging of 100 pieces per pack, suitable for panel builders or MRO stock replenishment.