Dinosaur Electronics | Time Delay Relay | 12VDCTDR | 12 VDC Operation

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Upgrade your older furnace with the 12VDC Time Delay Relay by Dinosaur Electronics. This microcontrolled relay ensures a 4-second delay before the fan motor starts and a 2-minute c ooldown period at the end of the heating cycle, providing optimal performance and protection for your furnace. Designed for use with older furnaces using a standard 12VDC ignitor board 4-second delay before the fan motor activates 2-minute cooldown period after the heat cycle Compact size: 1.5" x 1.5" Durable, potted construction TDR and 12VDCTDR are the same part Return Policy & Support: This item is not eligible for return. If you're unsure whether this is the correct replacement, please contact us before ordering to ensure compatibility. REPLACES SUBURBAN RELAY#521069 * The TDR and FAN 50 Plus Pins CANNOT be used in DuoTherm® 900 / 9000 series furnaces or any furnace where the thermostat is in the ground circuit *UNLESS* the thermostat control wires inside the furnace are removed from the "Ground" circuitry and rewired to the "Positive" (Battery +) side of the control circuitry. Show more