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WHITE-RODGERS 01G66-641 Analog Thermostat, Heat Only, 240V, DPST, 40-80°F - Analog Thermostats
WHITE-RODGERSAnalog Thermostats

WHITE-RODGERS 01G66-641 Analog Thermostat, Heat Only, 240V, DPST, 40-80°F

The WHITE-RODGERS THERMOSTAT: Heat Only (SKU 01G66-641, MPN 01G66-641) is an analog thermostat for heat-only applications. It features a single-stage (1H) DPST switch, an exposed dial control, and a temperature…

SKU 3G-OTH-70115

Also listed as: 01G66641 · 01G66 641

Brand
WHITE-RODGERS
Item
01G66-641 Analog Thermostat, Heat Only, 240V, DPST, 40-80°F
Part Number
01G66-641
Category
Analog Thermostats
Available to Order
Also known as:01G66-641WHITE-RODGERS
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Local availability & support — Singapore

Local office
20 Woodlands Link #09-05, Singapore 738733
Phone
+65 8878 8355
Payment
Invoicing in SGD. PayNow, bank transfer, and corporate PO accepted.

Technical Specifications

WHITE-RODGERS
Manufacturer Part Number
01G66-641
Type
Heat - Off, 40° to 80°F, Exposed Dial, 240V, DPST, 1H
Stages
1H
Voltage
240V
Application
Heat Only
Control Type
Exposed Dial
Fan Settings
No Fan Setting
System Settings
Heat - Off
Switch Type/Action
DPST
Temperature Control Range
40° to 80°F

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WHITE-RODGERS Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The WHITE-RODGERS THERMOSTAT: Heat Only (SKU 01G66-641, MPN 01G66-641) is an analog thermostat for heat-only applications. It features a single-stage (1H) DPST switch, an exposed dial control, and a temperature control range of 40° to 80°F. The unit operates at 240V with system settings for Heat and Off, and includes no fan setting.

Frequently Asked Questions

What is the WHITE-RODGERS 01G66-641 thermostat used for?

The WHITE-RODGERS 01G66-641 is an analog thermostat designed for heat-only applications. It controls single-stage heating systems using a DPST switch, with system settings for Heat and Off. Typical uses include residential or light-commercial heating equipment such as furnaces or baseboard heaters operating at 240V.

What are the specifications of the WHITE-RODGERS 01G66-641 thermostat?

The WHITE-RODGERS 01G66-641 is a single-stage (1H) heat-only thermostat with a DPST switch. It operates at 240V and has an exposed dial control with a temperature range of 40° to 80°F. It offers Heat and Off system settings with no fan setting. The MPN is 01G66-641.

Where to buy the WHITE-RODGERS 01G66-641 thermostat worldwide?

3G Electric supplies the WHITE-RODGERS 01G66-641 thermostat to customers worldwide. As a global industrial equipment distributor, we handle full logistics, customs clearance, and delivery to your location. Contact us to source this thermostat for your heating application.

How to install the WHITE-RODGERS 01G66-641 thermostat?

Install the WHITE-RODGERS 01G66-641 by first disconnecting power at the breaker. Mount the thermostat base to a wall box, connect the 240V supply wires to the DPST switch terminals per the wiring diagram, attach the exposed dial cover, and restore power. Always follow local electrical codes.

Used in

Common applications for WHITE-RODGERS
Commercial rooftop units — White-Rodgers 36H32-304 universal ignition gas valve for 230,000 BtuH single-stage heating sections
Industrial makeup air heaters — White-Rodgers 36H64-463 dual-stage gas valve for staged combustion control up to 300,000 BtuH
Residential furnaces — White-Rodgers 36G22-254 universal ignition gas valve rated at 140,000 BtuH for direct spark or hot surface ignition
HVAC fan control — White-Rodgers 90 372S1 SPDT fan-control relay with 120V AC coil for blower switching
Industrial control panels — White-Rodgers 4E944 surface-mounted DPDT relay rated 15 A at 277V AC for load switching
Light commercial heating — White-Rodgers 36H33-412 single-stage gas valve rated at 300,000 BtuH for high-capacity burners
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WHITE-RODGERS Products

3G Electric supplies WHITE-RODGERS analog thermostats. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

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