COLUMBUS ELECTRIC Portable Cooling Thermostat: Portable Cooling Equipment (MPN KTO-121B)
The COLUMBUS ELECTRIC Portable Cooling Thermostat (MPN KTO-121B) is a nonprogrammable analog thermostat for portable cooling equipment. It features a bi-metal sensor, SPST switch action (close on rise), and a steel…
SKU 3G-OTH-72061
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Product Description
The COLUMBUS ELECTRIC Portable Cooling Thermostat (MPN KTO-121B) is a nonprogrammable analog thermostat for portable cooling equipment. It features a bi-metal sensor, SPST switch action (close on rise), and a steel enclosure. The temperature control range is -10° to 100°F with a differential of 6° to 8°F.
Supplied to the Philippines — compatible with 60 Hz installations. DHL Express delivery to Manila, Quezon City, Cebu, customs and duties handled door-to-door.
Frequently Asked Questions
What is the COLUMBUS ELECTRIC Portable Cooling Thermostat used for?
This thermostat controls portable cooling equipment by sensing temperature with a bi-metal sensor and switching the cooling circuit on or off. It is commonly used in industrial or commercial environments where simple, reliable temperature regulation is needed without programmable features.
What are the specifications of the COLUMBUS ELECTRIC KTO-121B thermostat?
The KTO-121B is a nonprogrammable analog thermostat with SPST switch action (close on rise). It has a temperature control range of -10° to 100°F and a differential of 6° to 8°F. The sensor is bi-metal, the enclosure is steel (not rated), and it is manufactured by COLUMBUS ELECTRIC.
Where to buy the COLUMBUS ELECTRIC KTO-121B thermostat worldwide?
3G Electric supplies the COLUMBUS ELECTRIC KTO-121B thermostat to customers worldwide. As a global industrial equipment distributor, we handle full logistics, customs clearance, and delivery to your location. Contact us for availability and lead time.
How to install the COLUMBUS ELECTRIC portable cooling thermostat?
Mount the steel enclosure securely near the cooling equipment. Connect the SPST switch wires according to the close-on-rise action: the circuit closes when temperature rises above the setpoint. Adjust the analog dial to the desired temperature within the -10° to 100°F range. Always follow local electrical codes.
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3G Electric supplies COLUMBUS ELECTRIC nonprogrammable thermostats for portable cooling equipment. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.




