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Siemens SIRIUS 3RH29 Lateral Auxiliary Switches (S00-S3)

Siemens SIRIUS 3RH29 Lateral Auxiliary Switches (S00-S3)

SIRIUS 3RH2911/3RH2921 laterally attachable 2-pole auxiliary switches for 3RT2 contactors and 3RH2 contactor relays.

Key features

  • 2-pole: 2 NC, 1 NO + 1 NC or 2 NO
  • Mounting on the right and/or left
  • 3RH2911-.DA for size S00 contactors, 3RH2921-.DA for 3RH2 relays and S0-S3 contactors
  • Screw terminals or spring-loaded terminals

Specifications

Brand line SIRIUS
Accessory for SIRIUS 3RT contactors / 3RH2 relays
Version Lateral 2-pole, left/right
Manufacturer Siemens
Product category Accessories
Catalog chapter Contactors for switching motors
Catalog section 3RT/3RH2 accessories: Auxiliary switches, instantaneous
Source Siemens Catalog IC 10 · 2026, p. 217
3RH2911-1DA02 Contacts: 2 NC | For: 3RT2.1 (S00) | Connection: Screw
3RH2911-2DA02 Contacts: 2 NC | For: 3RT2.1 (S00) | Connection: Spring-loaded
3RH2911-1DA11 Contacts: 1 NO + 1 NC | For: 3RT2.1 (S00) | Connection: Screw
3RH2911-2DA11 Contacts: 1 NO + 1 NC | For: 3RT2.1 (S00) | Connection: Spring-loaded
3RH2911-1DA20 Contacts: 2 NO | For: 3RT2.1 (S00) | Connection: Screw
3RH2911-2DA20 Contacts: 2 NO | For: 3RT2.1 (S00) | Connection: Spring-loaded
3RH2921-1DA02 Contacts: 2 NC | For: 3RH21/3RH24; 3RT2.2-3RT2.4 S0-S3 | Connection: Screw
3RH2921-2DA02 Contacts: 2 NC | For: 3RH21/3RH24; 3RT2.2-3RT2.4 S0-S3 | Connection: Spring-loaded
3RH2921-1DA11 Contacts: 1 NO + 1 NC | For: 3RH21/3RH24; 3RT2.2-3RT2.4 S0-S3 | Connection: Screw
3RH2921-2DA11 Contacts: 1 NO + 1 NC | For: 3RH21/3RH24; 3RT2.2-3RT2.4 S0-S3 | Connection: Spring-loaded
3RH2921-1DA20 Contacts: 2 NO | For: 3RH21/3RH24; 3RT2.2-3RT2.4 S0-S3 | Connection: Screw
3RH2921-2DA20 Contacts: 2 NO | For: 3RH21/3RH24; 3RT2.2-3RT2.4 S0-S3 | Connection: Spring-loaded
AccessoriesSiemens
12 product codes available in this family
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Siemens SIRIUS 3RH29 Lateral Auxiliary Switches (S00-S3)

Brand Siemens·Accessories

Available part numbers (12)

3RH2911-1DA02, 3RH2911-2DA02, 3RH2911-1DA11, 3RH2911-2DA11, 3RH2911-1DA20, 3RH2911-2DA20, 3RH2921-1DA02, 3RH2921-2DA02, 3RH2921-1DA11, 3RH2921-2DA11 + 2 more — see full table ↓

How to order

Send the Siemens part numbers and quantities through our RFQ form or to info@prosourcemro.com. We confirm price, availability and lead time within 1 business day — no account needed.

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Product codes & specifications
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RFQ List (0)
Product codeSpec
3RH2911-1DA02Contacts: 2 NC | For: 3RT2.1 (S00) | Connection: Screw
3RH2911-2DA02Contacts: 2 NC | For: 3RT2.1 (S00) | Connection: Spring-loaded
3RH2911-1DA11Contacts: 1 NO + 1 NC | For: 3RT2.1 (S00) | Connection: Screw
3RH2911-2DA11Contacts: 1 NO + 1 NC | For: 3RT2.1 (S00) | Connection: Spring-loaded
3RH2911-1DA20Contacts: 2 NO | For: 3RT2.1 (S00) | Connection: Screw
3RH2911-2DA20Contacts: 2 NO | For: 3RT2.1 (S00) | Connection: Spring-loaded
3RH2921-1DA02Contacts: 2 NC | For: 3RH21/3RH24; 3RT2.2-3RT2.4 S0-S3 | Connection: Screw
3RH2921-2DA02Contacts: 2 NC | For: 3RH21/3RH24; 3RT2.2-3RT2.4 S0-S3 | Connection: Spring-loaded
3RH2921-1DA11Contacts: 1 NO + 1 NC | For: 3RH21/3RH24; 3RT2.2-3RT2.4 S0-S3 | Connection: Screw
3RH2921-2DA11Contacts: 1 NO + 1 NC | For: 3RH21/3RH24; 3RT2.2-3RT2.4 S0-S3 | Connection: Spring-loaded
3RH2921-1DA20Contacts: 2 NO | For: 3RH21/3RH24; 3RT2.2-3RT2.4 S0-S3 | Connection: Screw
3RH2921-2DA20Contacts: 2 NO | For: 3RH21/3RH24; 3RT2.2-3RT2.4 S0-S3 | Connection: Spring-loaded

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