Description
The Belimo S2A/500GR is an add-on auxiliary switch module designed to provide reliable end-position feedback and control signaling for compatible Belimo actuators. Featuring a dual single-pole double-throw (2x SPDT) switching configuration, this accessory integrates seamlessly with select Belimo damper and valve actuators to enable position-based control sequences, interlocking, and status indication in building automation and HVAC systems.
Key Features
- 2x SPDT (Single-Pole Double-Throw) auxiliary switch configuration
- Add-on design for easy field installation on compatible Belimo actuators
- Provides end-position feedback for open and closed actuator positions
- Supports interlocking, sequencing, and status indication in BAS/HVAC applications
- Compact, factory-quality construction for long-term reliability
- Designed and engineered by Belimo, a global leader in actuator technology
Applications
- Damper actuator position feedback in air handling and ventilation systems
- Valve actuator status signaling in hydronic and chilled water systems
- Building automation system (BAS) integration and control sequencing
- Fan interlock and proof-of-position circuits
- Commercial and industrial HVAC control panels
Why Choose the Belimo S2A/500GR?
Belimo is recognized worldwide for precision-engineered actuator solutions, and the S2A/500GR auxiliary switch upholds that standard. The dual SPDT contact arrangement gives controls engineers the flexibility to wire both open and closed position signals simultaneously, simplifying panel wiring and reducing the need for additional relay components. Whether you’re commissioning a new system or upgrading an existing installation, this add-on switch delivers the reliable feedback your controls architecture demands.
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