Models KO, KS, CO & CS

Download Data Sheet for Models KO,  KS, CO & CS

Models KO,  KS, CO & CS

Schematic - Pin Diagram for Models KO,  KS, CO & CS

Metric Dimensions are shown in mm (Shown in green)
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Standard Marking System
Standard Marking System
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1/2" disc thermostats with quick make/quick break switching action will automatically reset at preset temperature. Available with normally closed (open on temperature rise) or normally open (close on temperature rise) contact configurations.


Models KO & KS
Available with nominal calibration temperature range of -20º C to 195º C. Others upon request.

Models CO & CS
Available with nominal calibration temperature range of -5º C to 200º C.  Others upon request.

Standard Differential
The standard temperature differential between the opening and closing temperature is up to 40º C.  Tighter differentials available upon request.

Contact Ratings

Models KO & KS

15 amps 120 VAC resistive

10 amps 240 VAC resistive


10 amps 250 VAC 100,000 cycles

16 amps 250 VAC 10,000 cycles

Models CO & CS

16 amps 250 VAC, 10,00 cycles

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UL Recognitions

CSA Certifications