Ranco ETC-111100-000 Electronic Temperature Control SPDT

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.