Description
The Functional Devices RIBD01BDC is a 120V, 20-amp Single-Pole Double-Throw (SPDT) time delay relay engineered for dependable switching and sequencing control in commercial and residential HVAC applications. Designed and manufactured by Functional Devices — a trusted name in HVAC control components — this relay provides precise on-delay or off-delay timing to protect equipment, sequence startup cycles, and prevent short-cycling in a wide range of heating, cooling, and ventilation systems.
Key Features
- 120V AC coil voltage for compatibility with standard HVAC control circuits
- 20-amp contact rating for robust load switching capacity
- SPDT (Single-Pole Double-Throw) output provides both normally open and normally closed switching
- Built-in time delay function for sequencing, anti-short-cycle, or delayed shutdown applications
- Compact, panel-mount-friendly design for easy installation in control panels and enclosures
- Durable construction built to withstand the demands of continuous HVAC system operation
Typical Applications
- HVAC equipment startup and shutdown sequencing
- Anti-short-cycle protection for compressors and motors
- Fan delay control on heating and cooling systems
- Commercial building automation and control panels
- Ventilation system time-based switching
Specifications
- SKU: RIBD01BDC
- Brand: Functional Devices
- Coil Voltage: 120V AC
- Contact Rating: 20A
- Contact Configuration: SPDT (Single-Pole Double-Throw)
- Relay Type: Time Delay
