Functional Devices 20 Amp SPDT Power Relay

The Functional Devices 20 Amp SPDT power relay line is a family of enclosed Relay-In-a-Box (RIB) control relays for HVAC, lighting, motor and building automation systems. Each relay ships prewired in its housing, so you mount it, connect the leads and put it in service. You don't have to buy and assemble a separate relay, socket, mounting track and indicator.

Key Features:

• 20 amp SPDT (single pole, double throw) contact configuration for flexible load switching
• Built-in manual override switch that lets you set the contacts by hand, whatever the coil signal. This is useful for testing, service and emergency bypass.
• Multi-voltage coil design, so one relay can work with different control circuits
• Externally visible LED shows coil status, which makes troubleshooting easier
• Enclosed NEMA 1 housing for general-purpose indoor use
• UL Listed construction
• Prewired leads and screw terminal connections
• Wide operating temperature range and a rated mechanical life of at least 10 million cycles
• Made in USA

These relays suit HVAC fan control, lighting control, pumps and motor loads, and control panels that need both automatic and manual switching. Functional Devices is a well-known maker of enclosed relays and control components for commercial building systems.