Functional Devices RIBD2421C SPDT Enclosed Pilot Relay 10 Amp with Timer 24VAC/DC 120-277VAC Coil

The Functional Devices RIBD2421C is a versatile enclosed pilot relay designed for commercial and industrial HVAC, lighting, and control applications. This SPDT (Single Pole Double Throw) relay features a robust 10 amp switching capacity and includes an integrated adjustable time delay function for flexible control sequencing.

Key Features:

• SPDT contact configuration with 10 amp resistive load rating at 250VAC
• Universal dual voltage coil: 24VAC/DC and 120-277VAC for maximum installation flexibility
• Built-in adjustable timer for on-delay, off-delay, or interval timing functions
• Enclosed design with DIN rail or surface mounting options
• LED status indicator for coil energization
• UL 508 listed for industrial control equipment
• Operating temperature range: -40°F to 140°F (-40°C to 60°C)

This relay is ideal for controlling fans, pumps, dampers, and other equipment requiring time-delayed switching. The compact enclosed housing protects internal components while providing easy access to clearly labeled terminals for simplified wiring. The dual voltage coil eliminates the need to stock multiple relay types, reducing inventory and installation complexity.