Description
The Siemens 3RV2901-1A is a factory-designed auxiliary switch block engineered to expand the signaling and interlocking capability of Siemens 3RV2 series motor circuit protectors and starters. With one normally open (NO) and one normally closed (NC) contact, this side-mount auxiliary switch provides reliable status feedback and control circuit integration for a wide range of industrial and commercial HVAC applications.
Key Features
- 1 Normally Open (NO) contact and 1 Normally Close (NC) contact configuration
- Designed for use with Siemens 3RV2 series motor circuit protectors and starters
- Side-mount design for easy snap-on installation without additional tools
- Enables remote status indication, interlocking, and control circuit signaling
- Compact form factor preserves panel space
- Genuine Siemens OEM replacement component
Applications
- Motor starter and motor circuit protector auxiliary signaling
- HVAC control panel interlocking and status monitoring
- Commercial and industrial building automation systems
- Fan, pump, and compressor motor control circuits
Why Choose the Siemens 3RV2901-1A?
As a genuine Siemens accessory, the 3RV2901-1A ensures seamless compatibility and long-term reliability when added to your motor protection assembly. Its plug-in side-mount design makes installation straightforward, reducing downtime during panel builds or service calls. The dual-contact (1-NO/1-NC) output gives technicians and engineers the flexibility to wire both run-status indication and fault-interlock circuits from a single auxiliary block.
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