White-Rodgers 24A34-3 Electric Heat Sequencer

The White-Rodgers 24A34-3 Electric Heat Sequencer delivers precise sequencing for electric heating systems. This electric heat sequencer supports a wide voltage rating 120/240/480 VAC and features an On/Off-Delay timing mode to optimize furnace start-up and shut-down cycles. With adjustable timing ranges of 1–20 seconds (On) and 40–110 seconds (Off), it adapts to different load conditions while protecting components.

Designed for flexible installation, the unit offers multi-poise mounting and is suitable for use on Fan/Electronic Heat control circuits. The control provides a single timing channel with 2 switches, a 24V input control voltage, and robust current ratings for resistive and motor loads. It can handle up to 25 A at 120/240 VAC (resistive) and supports higher transient currents as a pilot or full-load device (e.g., 14/72 A at 120 VAC, 7/42 A at 240 VAC). Its power rating reaches 3000 W at 120 VAC and 6000 W at 240/480 VAC, making it suitable for standard furnace circuits.

• On/Off-Delay timing mode (1–20s On, 40–110s Off)
• Voltage: 120/240/480 VAC; Input: 24 VAC
• 2-switch output with 1 timing channel
• UL approved for safety and reliability
• Wide temperature range -50° to 165°F