Functional Devices RIB2402SB 24V Enclosed Relay 208/277VAC SPST

Functional Devices RIB2402SB — 24V Enclosed Relay, 208/277VAC, SPST

The Functional Devices RIB2402SB is a robust, enclosed single-pole single-throw (SPST) relay designed for dependable performance in commercial and industrial HVAC control applications. With a 24V control input and load-side ratings of 208/277VAC, this relay bridges low-voltage control circuits and line-voltage loads with confidence and precision.

Key Features

• Single-Pole Single-Throw (SPST) switching configuration
• 24V AC/DC coil input for compatibility with standard HVAC control circuits
• Load-side voltage rating: 208/277VAC for commercial line-voltage applications
• Enclosed housing for added protection and safe installation
• Compact design suitable for panel mounting or direct field installation
• Ideal for switching lighting, fans, pumps, and other HVAC equipment loads

Applications

• HVAC fan and blower control circuits
• Lighting and exhaust fan switching
• Commercial building automation and energy management systems
• Pump and motor control in hydronic and air-handling systems

Why Choose the RIB2402SB?

Functional Devices’ RIB (Relay in a Box) series is a trusted standard in the HVAC and building controls industry. The enclosed design of the RIB2402SB protects internal components from dust and accidental contact, making it a safe and reliable choice for both new construction and retrofit projects. Its 24V coil input integrates seamlessly with standard thermostat and building automation system outputs, while the 208/277VAC load rating covers the most common commercial line voltages in North America.