Ranco ETC-211000-000: 2 Stage Prewired Temperature Controller

Availability: 4 in stock
SKU: ETC-211000-000W

Heatshrink is typically used to protect the sensor from water in aquariums where copper thermal wells can't be used.


The Ranco ETC is a microprocessor based temperature controller suitable for switching 120Volts at up to 16Amps for heating or cooling applications making it suitable for a wide range of applications.  This is a great universal controller for any application where switching 120Volts or temperatures outside that of a normal home thermostat is required.  The sensor with an 8' foot cable and instructions are included with the unit. 

This is the same as our regular Ranco ETC-211000-000 controller except that it has been prewired for 120 Volts with a 10'-16 gauge cord and two 8' output cords (one for heating, the other for cooling) where you can plug in your heater, fan, or other device.  This is great for those who lack the skills of knowledge to wire the controller themselves.  Since we wire and tests these controllers before shipping we would be happy to accommodate your requests for different length cords or other changes to the wiring.  Please e-mail us with your requirements. 

The Ranco ETC-211000 is identical to the Ranco ETC-111000 except that this unit is 2 stage, and has 2 relays to control both heating and cooling at the same time. (The output relay NC and NO ratings are also different)


Relay Output Ratings - NO (NC)



Full load amps

9.8 (5.8) A

4.0 (2.9 A)

Locked rotor amps

58.8 (34.8) A

29.4(17.4) A

Resistive amps

9.6 (5.8) A

4.9 (2.9) A


1/2 (1/4) HP

1/2 (1/4) HP

  • Temperature Setpoint Range:  -30° to 220°F
  • Differential range: 1° to 30°F
  • Input Voltage: 120VAC, 208, 240VAC
  • Pilot duty: 125VA at 120/208/240VAC
  • Sensor:  Thermistor, 2" long x 1/4"dia with 8' cable (included)
  • Control Ambient Temperatures
    • Operating:  -20° to 140°
    • Storage: -40° to 176°
  • Ambient humidity:  0 to 95% RH, non-condensing
  • Enclosure:  NEMA 1
  • Dimensions: 6.52" high x 2.7" wide x 2.48" deep
  • Agency Approvals: UL listed, file E94419, Guide XAPX, CSA certified, file LR68340, class 4813 02
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