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Specifications | Instructions

Intermatic MIL72EQWUZH-120 7-Day 120V Electromechanical Flush Mount Timer Module with Battery Backup and Manual Override, 2 Hour Intervals, 21A, SPDT

The MIL72 series time switches are designed to be mounted inside a control panel and can accommodate surface/DIN rail or flush panel mounting. The MIL72 series is a light duty commercial time switch for 12-24 VAC/VDC, 120 or 208/240 VAC single-phase applications.


  • 21 A SPDT switch
  • Synchronous drive or quartz drive (Q Models) with self-recharging battery backup
  • 72-hour carry-over battery backup on Q models
  • Captive trippers with 2-hour intervals
  • Available with or without override
  • True clock face, easy-to-set
  • Surface/DIN rail or flush mount
  • Clear plastic dust cover
  • Compact size


  • Aeration
  • Air Movement & Ventilation
  • Generator Exercising
  • Refrigeration Merchandiser
  • Septic Treatment


Backup Type 72-hour Carry-over, Battery, Self-recharging Input Voltage Range(s) 120 VAC, 50/60 Hz
Mounting Options Flush Resistive 21 A, 250 VAC
Switch Type SPDT Has Real-time Clock Face Yes
Warranty Period 1-Year limited Wiring Option 1/4" Quick connect terminals
Application Compatibilities CFL, Fluorescent, Incandescent, LED Backup Protection Time 72 Hours
Battery Service Type Rechargeable Battery Type NiMh
Category Timer Controls Web Clock Drive Type Quartz
Has Captive Trippers Yes Has Override Switch Yes
Maximum Cycle Time 7 days Minimum Cycle Time 2 hrs
Motor (Three-Phase) 1 HP, 120 VAC, 50 Hz, 1 HP, 120 VAC, 60 Hz, 2 HP, 240 VAC, 50 Hz, 2 HP, 240 VAC, 60 Hz Operating Humidity 0 to 95%, Non-condensing
Operating Temperature with Battery Backup -4° F to 131° F (-20° C to 55° C) Shortest switching time ON/OFF 2 hours
Timing Interval 2 hrs Tungsten (NO) 1350 W, 120 VAC
Operating Temperature Max (°C) 55 Operating Temperature Max (°F) 131
Operating Temperature Min (°C) -20 Operating Temperature Min (°F) -4
Product Depth (in) 1 23/64 Product Depth (mm) 34.5
Product Height (in) 2 39/64 Product Height (mm) 66
Product Width (in) 2 53/64 Product Width (mm) 72
Unit Carton Height (in) 2.25 Unit Carton Length (in) 3.25
Unit Carton Weight (lb) 0.339 Unit Carton Width (in) 3.25

Switch Rating: 21A Resistive @ 120-250 VAC
1 HP @ 120 VAC
2 HP @ 250 VAC
1350 W Tungsten @ 240 VAC
Wiring Connections: Screw terminal connections (MIL72A)
⁄4" quick connects (MIL72E) accepts up
to #12GA wire
Operating Temperature: -40ºF to 185ºF (-40ºC to 85ºC)
with battery backup -4ºF to 131ºF
(-20ºC to 55ºC)
Operating Humidity: 0 to 95% non-condensing
Battery Backup Option: 7-Days carryover
Supply Voltage: 24, 120, and 208/240 VAC, 60 Hz models
Quartz: 12, 24 VAC/DC, 120 and 208/240 VAC
50/60 Hz
Power Consumption: 24 VAC: 0.1 VA
120 VAC: 0.5 VA
240 VAC: 1.0 VA
Shipping Weight: 1 lb.
MILE Cutout: 2 5
⁄8" x 2 5

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