Model ST01 Series

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

• Snap action design, quick break/quick make switching action.

• Preset calibration temperature, not adjustable in the field.

• Brass case provides good thermal conductivity.

• Case is electrically alive.  Multiple insulation options are available.

• 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.

Standard Marking System

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