Description
The Siemens 3RH1921-1CA10 is a 1 N/O (normally open) auxiliary contact block designed to expand the switching capability of Siemens 3RH and 3RT series contactors and control relays. This add-on contact module mounts directly to compatible Siemens contactors, providing additional control circuit contacts without requiring extra panel space or complex wiring.
Key Features
- 1 N/O (normally open) auxiliary contact configuration
- Designed for use with Siemens 3RH and 3RT series contactors and control relays
- Side-mount auxiliary contact block for easy snap-on installation
- Compact design minimizes panel space requirements
- Suitable for control circuit signal and interlocking applications
- Genuine Siemens replacement and add-on component
Applications
- Motor control centers (MCCs)
- HVAC control panels and electrical enclosures
- Industrial automation and control circuits
- Interlocking and signaling circuits
- Building automation and mechanical room electrical systems
Why Choose Siemens Auxiliary Contacts
Siemens auxiliary contact blocks are engineered for long service life and reliable performance in demanding environments. The 3RH1921-1CA10 is a genuine Siemens component, ensuring full compatibility and consistent operation when paired with Siemens 3RH and 3RT series devices. Its tool-free snap-on mounting makes installation fast and straightforward for HVAC and electrical contractors.
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