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Supco Q104 24V Heat Sequencer - Replacement for 24A34-4

SKU Q104
Currently 49 in stock.

Supco Q104 24V Heat Sequencer - Replacement for 24A34-4

Q Series Sequencer, field proven for controlling the operation of heating elements and/or blower motors in electric, gas or oil heat systems. This sequencer has 2 switches & turns on at 1-20 seconds, and off at 40-110 seconds.


  • UL® and CSA® approved
  • 24 volt control circuit
  • Five second delay between all subsequent stages, unless they function together
  • WARNING: Prop 65 info


Timing: Contacts M1-M2 will turn on 1st and turn off last
Off: 1 - 30 Seconds
On: 30-90 Seconds




  • Oil furnaces
  • Gas furnaces
  • Heat pumps
  • Electric furnaces



Mars®: 33245 and 33845
Carrier® / ICP®: HN67QC006
Interstate Electronic I-9®: IES24A34-4
White Rodgers®: 24A34-4
Klixon®: 60000EO49
Zettler®: ZC24A34-4
York: 525-37325-000



Product Manuel