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EMERSON 01C21 101S1 Analog Thermostat, Cool Only, Slide Switch, 30V AC - Analog Thermostats
EMERSONAnalog Thermostats

EMERSON 01C21 101S1 Analog Thermostat, Cool Only, Slide Switch, 30V AC

The EMERSON Mechanical Cool Only Thermostat is an analog thermostat designed for cool-only applications. It features a slide switch control type, operates at 30V AC, and has a temperature control range of 50° to 90°F…

SKU 3G-OTH-71009

Also listed as: 01C21101S1 · 01C21-101S1

Brand
EMERSON
Item
01C21 101S1 Analog Thermostat, Cool Only, Slide Switch, 30V AC
Part Number
01C21 101S1
Category
Analog Thermostats
Available to Order
Also known as:01C21 101S1EMERSON
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Technical Specifications

EMERSON
Manufacturer Part Number
01C21 101S1
Type
R/Terminal Designations, No Fan Setting, On
Shape
Rectangle
Voltage
30V AC
Digit Size
Standard
Application
Cool Only
Control Type
Slide Switch
Fan Settings
No Fan Setting
System Settings
On
Mounting Direction
Vertical
Terminal Designations
Y
Temperature Differential
2°F Heating, 4°F Cooling
Temperature Control Range
50° to 90°F

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EMERSON Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The EMERSON Mechanical Cool Only Thermostat is an analog thermostat designed for cool-only applications. It features a slide switch control type, operates at 30V AC, and has a temperature control range of 50° to 90°F with a 4°F cooling differential. The thermostat includes a Y terminal designation, no fan setting, and is mounted vertically in a rectangular shape.

Frequently Asked Questions

What is the EMERSON Mechanical Cool Only Thermostat used for?

This analog thermostat is designed for cool-only applications, such as controlling air conditioning systems in commercial or industrial spaces. It operates at 30V AC and provides a temperature control range of 50° to 90°F with a 4°F cooling differential.

What are the specifications of the EMERSON 01C21 101S1 thermostat?

The EMERSON 01C21 101S1 is a cool-only analog thermostat with a slide switch control, Y terminal designation, and no fan setting. It operates at 30V AC, has a 2°F heating and 4°F cooling differential, and a temperature range of 50° to 90°F. It is rectangular and mounts vertically.

Where to buy the EMERSON 01C21 101S1 thermostat worldwide?

3G Electric supplies the EMERSON 01C21 101S1 thermostat worldwide. As a global industrial equipment distributor since 1990, we handle full logistics, customs clearance, and delivery to your location. Contact us to source this cool-only analog thermostat for your project.

How to install the EMERSON Mechanical Cool Only Thermostat?

Install the EMERSON thermostat by mounting it vertically on a wall in a location away from drafts or heat sources. Connect the Y terminal to the cooling system's control wire, ensure 30V AC power is supplied, and set the slide switch to On. Always follow local electrical codes and the manufacturer's instructions.

Used in

Common applications for EMERSON
Residential HVAC — Emerson 1F87U-42WF low-voltage WiFi thermostat for 7-day programmable heat and cool control
Light commercial buildings — Emerson 2E399 line-voltage mechanical thermostat for indoor single-stage heating or cooling
Industrial process control — Emerson 586-314111 DC power solenoid for high-current switching in 24 V DC systems
Remote temperature sensing — Emerson F0145 132800S1 hardwired sensor for White-Rodgers 90 Series thermostats
Thermostat replacement — Emerson 3MY21 wall cover plate for White-Rodgers 1F80 Series installations
HVAC control panels — Emerson 1RC43 line-voltage thermostat with SPST switch for capillary bulb applications
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EMERSON Products

3G Electric supplies EMERSON 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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This analog thermostat is designed for heat-only applications, controlling single-stage electric heating systems such as baseboard heaters or radiant ceilings. It features an exposed dial for temperature adjustment from 55° to 85°F, operates on 120 to 240V AC, and has a SPST switch action (open on rise). The dustproof case protects internal components in typical residential or light commercial environments
EMERSON
This analog thermostat is designed for heat-only applications, controlling single-stage electric heating systems such as baseboard heaters or radiant ceilings. It features an exposed dial for temperature adjustment from 55° to 85°F, operates on 120 to 240V AC, and has a SPST switch action (open on rise). The dustproof case protects internal components in typical residential or light commercial environments

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