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Twenty small round thermostat switches in a plastic case, silver metal bodies with 6.3mm terminals

Unique-Bargains

Unique-Bargains KSD301Action thermostat kit 20pcs NC NO 40-135°C 40-100°C 6.3mm

SKU CH-8ZJY-YPTWR MPN KSD301Action

A 20-piece assortment of KSD301 thermal switches covering normally closed settings from 40 to 135 °C and normally open from 40 to 100 °C with 6.3 mm pins

  • 20 thermostats cover NC 40-135°C and NO 40-100°C for wide temperature control
  • NC normally closed and NO normally open contacts suit both heating and cooling circuits
  • 3 mm pin width fits standard quick-connect terminals for fast installation
  • Contact life exceeds 50,000 action cycles for long-term reliability
  • Supplied in a hard plastic box with labelled compartments for organised storage

20-piece KSD301 thermostat kit

This assortment contains twenty new KSD301 thermal switches covering both normally-closed and normally-open contact types. Ten NC units step from 40°C to 135°C while ten NO units step from 40°C to 100°C, each with a 6.3 mm pin width. The kit suits technicians who service a variety of heating appliances and need multiple trip temperatures in one box.

Replaces single-temperature switches

Instead of ordering individual thermostats for every repair job, the kit supplies a full spread of common cut-off points for microwave ovens, coffee makers, dryers, water heaters and similar equipment. The jump is worth it when a workshop handles several brands that use different reset temperatures but share the same 6.3 mm mounting format.

Sustained cycling performance

Each switch is rated for more than 50,000 action cycles thanks to a double metal chip that delivers sensitive, stable operation without arc phenomenon. The automatic-reset design maintains consistent trip accuracy over repeated heating and cooling cycles, so the component remains reliable during long service intervals in continuously cycled appliances.

Highlights

  • 20 thermostats cover NC 40-135°C and NO 40-100°C for wide temperature control
  • NC normally closed and NO normally open contacts suit both heating and cooling circuits
  • 3 mm pin width fits standard quick-connect terminals for fast installation
  • Contact life exceeds 50,000 action cycles for long-term reliability
  • Supplied in a hard plastic box with labelled compartments for organised storage

Specifications

BrandUnique Bargains

Questions about this item

What pin width do the KSD301Action thermostat terminals use?

Each thermostat in the kit has terminals with a 6.3 mm pin width, which matches standard 0.25 inch quick-connect tabs for push-on spade connectors.

How are the KSD301Action switches mounted, and what mistake should I avoid?

The switches mount via their metal case or integral bracket; the common error is over-tightening the mounting screw, which distorts the bimetal disc and shifts the trip temperature.

When should I replace a thermostat from this assortment kit?

Replace any unit after it reaches the rated 50,000 action cycles or if the contacts show arcing, because the snap-action mechanism loses calibration and can stick open or closed.

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