Model ST01 Series
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These snap action thermal protectors offer exceptional performance in an extremely small package. Designed as an economical solution, especially for motor, transformer, and lighting applications up to 5 amps, 250 VAC. The round, low-profile design fits perfectly for on-winding protection. Available in a variety of configurations to meet the requirements of many different applications.
A self-hold model is available for applications requiring an additional level of protection. An internal heat source holds the circuit open until power is disconntected.
Features
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Snap action design, quick break/quick make switching action.
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Preset calibration temperature, not adjustable in the field.
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Brass case provides good thermal conductivity.
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Case is electrically alive. Multiple insulation options are available.
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Standard #22 ga. Silicone rubber insulated lead wires. Other materials available upon request.
Contact Ratings
Model STO1
- 5 Amps 250 VAC
- Maximum operating voltage: 60 VDC, 500 VAC
Calibration Range
- Available with nominal calibration temperatures from 60ºC to 160ºC
- Standard calibration tolerance is ± 5ºC
Applications
Motors, transformers, lighting, coils, electronics
Approvals
This model has been evaluated under the components programs by UL and TUV. Please contact us for further details.