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Model Timings – ON Timings – OFF
Number Timings Switches M1-M2 M3-M4 M5-M6 M7-M8 M9-M10 M1-M2 M3-M4 M5-M6 M7-M8 M9-M10
24A34-1 1 1 1-20 – – – – 40-110 – – – –
24A34-2 1 1 – – 30-90 – – – – 1-30 – –
24A34-3 ➀ 1 2 1-20 1-20 – – –
40-110 40-110 – – –
24A34-4 1 2 – – 30-90 30-90 – – – 1-30 1-30 –
24A34-5 ➀ 2 3 1-110 1-110 1-110 – – 1-110 1-110 1-110 – –
24A34-6 ➀ 2 4 1-110 1-110 1-110 1-110 – 1-110 1-110 1-110 1-110 –
24A34-14➀➁ 4 5 1-160 1-160 1-160 1-160 1-160 1-160 1-160 1-160 1-160 1-160
24A34-21 1 1 1-20 – – – – 1-50 – – – –
24A34-22 1 1 15-45 – – – – 1-30 – – – –
24A34-23 1 1 25-55 – – – – 15-45 – – – –
24A34-24 1 1 30-75 – – – – 1-40 – – – –
24A34-25 1 1 40-90 – – – – 1-30 – – – –
24A34-26 2 2 1-20 30-90 – – – 40-90 1-30 – – –
24A34-27 2 2 1-160 1-160 – – – 1-160 1-160 – – –
24A34-28 ➂ 2 2 1-160 1-160 – – – 1-160 1-160 – – –
24A34-29 1 1 15-35 – – – – 25-55 – – – –
24A34-36 2 2 1-20 30-45 – – – 45-110 1-30 – – –
24A34-37 1 1 1-110 – – – – 1-110 – – – –
MODEL 24A34 ELECTRIC HEAT SEQUENCERS
DirectReplacementforMostFan/HeatSequencingFunctions.
TerminalMarkingsareEquivalenttoCompetitiveTypes
FEATURES
•ReplacesHoneywell,MARS,TOD,
GEMLINE, Klixon (Texas Instruments).
•24Vinputcontrol.
•Multi-poisemounting.
Resistive (Non-Inductive) Motor Ratings (Inductive)
VAC Watts Amps Full Load Locked Rotor Pilot Duty
120 3000 25.0 14.0A 72.0A 125 VA
240 6000 25.0 7.0A 42.0A 125 VA
480 6000 12.5 – – 480 VA
ELECTRICAL RATINGS – SINGLE LOAD CONTACT RATINGS (ALL MODELS)
•Anycontacts(exceptM1&M2)canbe
used as auxiliary contacts.
•Doublequick-connectterminalsfor
combination loads.
SPECIFICATIONS
Ambient Temperature Rating .......... -50 to +165°F
Agency . . . . . . . . . . . . . . . . . . . . . . . . . . . U.L. component recognized
TABLE NOTES:
➀ M1-M2andM3-M4arealwaysrstswitches
to turn ON and last to turn OFF. All other
switches are random ON and random OFF
➁ 24A34-14 Switch contacts designated
F
1
- F
2
instead of M
1
- M
2
➂ 24A34-28 is 2 pole double throw
♦ These contacts switch simultaneously
NOTE:UnderwritersLaboratoriesrequiresa
faninterlockcircuittoinsuretheblower
remains operating whenever more than one
sequencerisused.Thefaninterlockshould
be the M
1
/ M
2
contacts of the second or third
sequencer.
All M
1
/ M
2
contacts are wired to the blower mo-
torsothatanysequencerthatisenergizedwill
keeptheblowerON.
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COMBINED LOAD RATING TABLE
(ALL MODELS)
30A @ 240 VAC – TOTAL,
23A Non-Inductive + 7 FLA / 42 LRA Inductive,
ONTime: Elapsedtimetomakecontactsafter
heater is energized (min. to max.)
OFFTime: Elapsedtimetobreakcontactsafter
heater is de-energized (min. to max.)
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







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♦
♦
♦
♦
♦
♦
♦
♦
♦
♦
♦
♦
24A34-3
Model Timings
Number Timings Switches ON 1-3 OFF 1-3
24A34-15 1 1 1-60 75-95
24A34-15 HEAT PUMP CONTROL
FEATURES
•Usedinheatpumpairhandlerapplications.
•Providesadelayofftotheblowermotorincoolingmode.
•Singlepoledoublethrow.
Resistive (Non-Inductive) Motor Ratings (Inductive)
VAC Watts Amps Full Load Locked Rotor Pilot Duty
120 3000 25.0 14.0A 72.0A 125 VA
240 6000 25.0 7.0A 42.0A 125 VA
ELECTRICAL RATINGS – NORMALLY OPEN CONTACTS 1-3
Resistive (Non-Inductive)
VAC Watts Amps Pilot Duty
120 1200 10.0 125 VA
240 1200 5.0 125 VA
ELECTRICAL RATINGS – NORMALLY CLOSED CONTACTS 1-2
ELECTRIC HEAT
PRODUCTS
Indicates Canadian Model Number: call 1-800-305-6953 to order

HEATING
www.white-rodgers.com
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