Intermatic DDT40 Complete Adaptive Defrost Refrigeration Time Control with ICUBE™

IntermaticSKU: DDT40

Sale price $270.66
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Intermatic DDT40 Complete Adaptive Defrost Refrigeration Time Control with ICUBE™ Module, Sensor, and Type 3R Enclosure

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.


  • Improved relay performance
  • 1 evaporator sensor included, expandable up to four sensors (178GR10K-1)
  • Comes with 10' sensor wire with thermistor and 6' input wire
  • Sensor wiring can be expanded up to 400' through existing conduits to reach remote condensing units
  • Initiates defrost only when necessary at next timer-programmed interval
  • Temperature initiated (with time delay), temperature, pressure or time terminate
  • 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


Input Voltage Range(s) Auto Voltage 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 Temperature, Time Time Termination Pressure, Temperature, Time
Enclosure Type Outdoor type 3R plastic 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 Finger safe terminals
Application Compatibilities Commercial Refrigeration, Walk-in Cooler, Walk-in Freezer Category Defrost Timers Web
Defrost LED Indicator Green, Red Diagnostics and Efficiency LED Indicator Blue
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, 60 Hz RoHS Certification Yes
Thermistor Rating 10 K ? @ 25° C (77° F) Thermistor Type NTC
ThermistorWireSize #24 AWG Voltage Selection Type Auto Voltage
Wire Size Max #8 AWG Operating Temperature Max (°C) 55
Operating Temperature Max (°F) 131 Operating Temperature Min (°C) -40
Operating Temperature Min (°F) -40 Product Depth (in) 2 15/16
Product Depth (mm) 74.61 Product Height (in) 8 3/4
Product Height (mm) 222.25 Product Width (in) 6
Product Width (mm) 152.4 Unit Carton Height (in) 9.125
Unit Carton Length (in) 6.375 Unit Carton Weight (lb) 1.896
Unit Carton Width (in) 3

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