Description
The Siemens 3RH1921-1DA11 is a side-mount auxiliary contact block designed for use with Siemens 3RH and 3RT series contactors and motor starters. Featuring a 1 NO (normally open) and 1 NC (normally closed) contact configuration, this auxiliary switch mounts directly to the side of compatible Siemens contactor frames, expanding control and signaling capability without increasing panel footprint.
Key Features
- Side-mount design for direct attachment to compatible Siemens 3RH and 3RT series contactors
- 1 NO + 1 NC auxiliary contact configuration
- Compact form factor preserves panel space
- Tool-free snap-on installation for fast, reliable assembly
- Suitable for use in control circuits, signaling, and interlocking applications
- Manufactured by Siemens to meet rigorous industrial quality standards
Applications
- Motor control centers (MCCs)
- Industrial control panels
- HVAC equipment control circuits
- Signaling and interlocking circuits
- Building automation and electrical distribution systems
Specifications
- SKU: 3RH1921-1DA11
- Brand: Siemens
- Contact Configuration: 1 NO / 1 NC
- Mount Type: Side Mount
- Compatible Series: Siemens 3RH and 3RT Contactors
