Intermatic T104-20 NEMA 1 208 to 277 VAC 60 Hz 40 Amp DPST Mechanical Water Heater Time Switch
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Manufacturer Intermatic
Mfg Catalog # T104-20
North Coast Part # 66686

Features & Applications


  • Three sets of ON/OFF trippers
  • Enables shifting electricity use into off-peak hours to reduce energy costs
  • 12 ON / 12 OFF events


  • Residential
  • Institutional
  • Industrial
  • Commercial
  • Military Facilities
  • Schools


  • Mechanism Type: Digital/Electrical
  • Minimum ON/OFF Times: 1 hour
  • Maximum ON/OFF Operations: 0
  • Input Voltages Display: 208-250 VAC, 60 Hz
  • Switch Type: DPST
  • Warranty: 1-year limited

Documents & Downloads

Product Rating


UPC 07827500013
GTiN 00078275000131
Warranty Length 1 yr
Size 5 LENGTH X 3 WIDTH X 7-3/4 HEIGHT IN, 12.70 LENGTH X 7.62 WIDTH X 19.69 HEIGHT CM
Operating Temperature -40 To 130 F
Type Water Heater Control
Applications Commercial, Industrial, Residential, Indoor, HVACR
Mounting Type Wall Mount
Standard CCSAus Certified,CULus Listed,HVACR
Frequency 60 Hz
Connection Type Screw Terminal
Wattage 3 Watt
Switch Type DPST
Input Voltage 208-250 V
Family Brand Name Intermatic
TC Connection Screw Terminal
Contact Configuration 2 NO
Amperage 40 Amp
Contact Rating 40 AMP @ 120 - 277 VAC (Resistive, Inductive, Tungsten)
Number of Poles 2 Pole
Enclosure NEMA 1
Action DPST
Voltage 208-277 VAC

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