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White rectangular electronic temperature controller with digital display and SPDT contacts

Ranco

Ranco ETC-111100-000 Electronic Temperature Control SPDT

SKU CH-TZN9-138E4

Electronic temperature controller with digital display, SPDT contact and IP67 rating operates from -30 °F to 220 °F on 120, 208 or 240 V AC

  • TypeElectronic Temperature Control
  • Precise regulation from -30 °F to 220 °F
  • Adjustable differential 1 °F to 30 °F for tight control
  • SPDT contacts switch heating or cooling loads
  • IP67 enclosure resists dust and water ingress
  • Digital display simplifies setup at 120/208/240 V AC

Single-Stage SPDT Temperature Control

The Ranco ETC-111100-000 is a single-stage electronic temperature controller with a SPDT relay output. It operates on 120V AC, 208V AC, or 240V AC input voltage and provides a variable output. The unit features a digital display and an IP67-rated enclosure with a NEMA 1 rating. It is designed for heating or cooling applications requiring precise on/off control.

For Fixed-Point On/Off Regulation

This controller suits installers needing a durable, single-setpoint switch for HVAC, refrigeration, or process equipment between -30°F and 220°F. The adjustable differential ranges from 1°F to 30°F. It is not suitable for systems requiring multi-stage sequencing, proportional modulation, or communication protocols. Buyers needing multiple independent relay outputs or data logging should consider other devices.

SPDT Contact Form Decides Compatibility

The single-pole double-throw contact form provides one common, one normally open, and one normally closed terminal. This configuration allows the control to activate either a heating load or a cooling load on temperature rise, but not both simultaneously. Verify that the controlled circuit requires only a single switched circuit before purchasing.

Highlights

  • Precise regulation from -30 °F to 220 °F
  • Adjustable differential 1 °F to 30 °F for tight control
  • SPDT contacts switch heating or cooling loads
  • IP67 enclosure resists dust and water ingress
  • Digital display simplifies setup at 120/208/240 V AC

Specifications

BrandRANCO
TypeElectronic Temperature Control

Questions about this item

What NEMA rating and IP rating does the enclosure carry?

The enclosure is rated NEMA 1 and IP67, so it is protected against dust and temporary immersion but only for indoor use.

Which supply voltages can the controller accept during wiring?

It accepts 120 V AC, 208 V AC and 240 V AC; connect the line voltage that matches your circuit to the labelled input terminals.

How often should the temperature sensor be checked or replaced?

The digital sensor has no scheduled replacement interval; verify accuracy annually and replace only if readings drift outside the 1 °F differential setting.

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