Intermatic DTAV40Q-M 24-Hour Electromechanical Defrost Timer

IntermaticSKU: DTAV40Q-M

Sale price $239.55
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For electric heat, hot gas or compressor shutdown defrost. The DTAV40 Series Auto Voltage Defrost Timer is applicable to air defrost (compressor shutdown) and electric or hot gas defrost systems where the defrost cycle is terminated by the timer. If the coil is frost-free, the timer can also be terminated by temperature or pressure switches before the programmed defrost termination time has been reached. The time termination functions as a fail-safe and terminates the defrost cycle if the temperature or pressure switch fails to do so.


  • Adaptive Defrost upgradeable (DTAV40, DTAV40M only) (See ICUBE)
  • DTAV40 Series replaces over 40 competitive models
  • 40 A, 2 HP Rating
  • Autovoltage automatically adjusts between 120 and 240 VAC
  • Q model features self-recharging battery backup with 72-hour carry-over
  • Can mount in an existing enclosure – no tools required for installation
  • Moisture resistant conformal-coated board
  • LED indicators for defrost and refrigeration cycles
  • Defrost cycles are programmed independently
  • Real-time clock face for quick, easy and accurate setting


  • Walk-in Refrigeration Cooler/Freezer


Backup Type 72-hour Carry-over, Battery, Self-recharging Input Voltage Range(s) 120/240 VAC, 60 Hz
Mounting Options Bracket Resistive 40 A, 120 VAC, 60 Hz, 40 A, 208 VAC, 60 Hz, 40 A, 240 VAC, 60 Hz
Switch Type 1 SPDT, 1 NC SPST Time Initiation Time
Time Termination Pressure, Temperature, Time Enclosure Type N/A - Mechanism only
Has Real-time Clock Face Yes Minimum ON/OFF Times 15 min
Maximum ON/OFF Times 23 hours, 45 min Mechanism Type Electromechanical
ON/OFF Operations 48 Warranty Period 1-Year limited
Wiring Option Screw box lug terminals up to one #8 AWG wire Application Compatibilities Commercial Refrigeration, Walk-in Cooler, Walk-in Freezer
Backup Protection Time 72 Hours Backup Restoration Time 70 Hours
Battery Service Type Rechargeable Battery Type Li-Ion
Category Defrost Timers Web Clock Drive Type Quartz
Defrost LED Indicator Red Has Captive Trippers Yes
Motor (Three-Phase) 1 HP, 16 FLA, 96 LRA @ 120 VAC, 2 HP, 12 FLA, 72 LRA @ 240 VAC Operating Humidity 0-95% RH, Non-condensing
Refrigeration LED Indicator Green, Red Resistive Load Ratings Ranges 40 A, 120-240 VAC
RoHS Certification Yes Voltage Selection Type Auto Voltage
Wire Size Max #8 AWG Unit Carton Height (in) 2.5
Unit Carton Length (in) 7.5 Unit Carton Weight (lb) 0.77
Unit Carton Width (in) 4.75

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