The Functional Devices RIB02BDC is a robust, enclosed single-pole double-throw (SPDT) relay engineered for demanding commercial and industrial HVAC control applications. Designed to operate on 208–277V coil voltage, this relay delivers dependable switching performance with a 20-amp contact rating, making it well suited for fan, pump, compressor, and general load-switching duties across a wide range of building automation and HVAC systems.
Key Features
- Coil Voltage: 208–277V AC
- Contact Configuration: SPDT (Single-Pole Double-Throw) — supports both normally open (NO) and normally closed (NC) switching
- Contact Rating: 20 Amps
- Enclosed housing protects internal components from dust and environmental contaminants
- Compact, panel-ready design for easy integration into control enclosures and junction boxes
- Ideal for use with building automation systems, energy management systems, and HVAC equipment controls
Common Applications
- Fan and blower motor switching
- Pump and circulator control
- Compressor enable/disable circuits
- Lighting and general load control in commercial HVAC systems
- Building automation and DDC system output loads
Why Choose the RIB02BDC?
Functional Devices’ RIB (Relay in a Box) series is a trusted standard in the HVAC and building controls industry. The RIB02BDC combines a wide-voltage coil range with a high-ampacity SPDT contact set, giving contractors and controls engineers the flexibility to handle a broad spectrum of switching tasks from a single, reliable device. The enclosed format simplifies installation and helps ensure long-term reliability in commercial environments.
