The Siemens 3RH2921-1DA11 is a lateral auxiliary switch block designed for side-mounting onto Siemens 3RH and 3RT series contactors and motor starters. Featuring a 1NO+1NC (one normally open, one normally closed) contact configuration, this auxiliary switch expands the signaling and control capabilities of your existing contactor assembly without requiring additional panel space.
Key Features
- Lateral (side-mount) installation for compact panel integration
- 1NO + 1NC contact configuration for versatile control and signaling circuits
- Compatible with Siemens 3RH2 and 3RT2 series contactors and motor starters
- Snap-on mounting for fast, tool-free installation
- Robust construction engineered for industrial-grade reliability
- Suitable for use in HVAC control panels, motor control centers, and building automation systems
Applications
- Motor starter and contactor auxiliary signaling
- HVAC equipment control panels
- Building automation and motor control centers
- Industrial control and interlocking circuits
Product Details
- Brand: Siemens
- SKU / Part Number: 3RH2921-1DA11
- Mount Type: Lateral (side-mount)
- Contact Configuration: 1NO + 1NC
- Series Compatibility: Siemens 3RH2 / 3RT2
