Pay in 4 interest-free payments of $8.96 Learn more
Ships within 48 hours · Estimated delivery Sep 8 - Sep 13
The delay prevents the contactor from dropping out immediately when hit by a temporary flash
Thermal Protection: Solid-state construction eliminates moving parts and contact pitting
replacement is required
the root cause of the rollout must be identified and repaired before a new fuse is installed and the system is fired
Nordyne 621451R Sequencer The delay prevents the contactorThe Nordyne 621451R Sequencer is a critical 2 pole electric furnace control designed to manage the timed energization of heating elements and blower circuits. Built for 10KW and 12KW electric furnaces, this OEM replacement sequencer prevents massive electrical surges by staggering the activation of heat strips using internal resistive timing. As a veteran grade HVAC sequencer relay, it ensures that your system engages its various heating stages