Skip to main content

ET9 SPST Line Voltage Thermostat 50-90 Deg F 120-277 VAC (Cooling Only) ET9SRTS

ET9 SPST Line Voltage Thermostat 50-90 Deg F 120-277 VAC (Cooling Only) ET9SRTS
TPI Corporation
Build Time:
1 to 3 Business Days ?
Ships By:
FedEx Ground

Build Time

The product Build Time you see represented on this site is only a typical number of days the manufacturer states it needs to build the product(s) when ordered. Build times are based on business days (excludes weekends & holidays).

The build time does not include the time it will take to ship the order to you (the customer). If an order has multiple items and comes from multiple warehouses, you may receive part of your order on one day, and then receive the remaining part(s) of your order at a later date.

*Please be aware that seasonal demand of certain equipment may cause build times to run longer than what is typical.

LIST: $34.00
Only $25.12

The Columbus Electric wall mounted line voltage thermostat is suitable for direct connection with any resistance heating elements and unit heaters. This thermostat has a snap action switch operated by a bimetal actuator and is available in single pole, double pole with positive off, two stage heat. Cooling only and heat or cool models. Other options include a built in thermometer and/or 6 inch wire leads.
50 - 90F Range


Setpoint Temperature Range
50-90oF / 10-32oC
35-75oF / 2-24oC

Rated Differential
2-4oF Voltage

Amp Rating

Heating: 22 Amps, Resistive Max.
Cooling: 3/4 HP 125 VAC,
1-1/2 HP 250/277 VAC

Thermometer: Standard
Glass, Alcohol filled

Anticipation: Optional

Fixed Heat

Imported to TPI Specifications
    Model No.:
    120 - 277
    Various Warehouses
    Dimension Inches:
    Width: 2.9" Depth: 1.5" Height: 4.75"
    Notice: Manufacturer's products features and specifications are subject to change without notice.
    California Residents: warning WARNING- This product may contain chemicals known to the State of California to cause cancer and birth defects or other reproductive harm. For more information, please visit


    Have a Question?

    Be the first to ask a question about this.

    Ask a Question