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Five small rectangular thermostat switches with silver 6.3mm pins and black plastic bodies

Unique-Bargains

Unique-Bargains KSD301 200°C 10A NC 6.3mm Pin 5pcs electrical timer switch

SKU CH-2YVC-2YPA0 MPN KSD301

Five normally-closed thermal switches rated 10 A at 250 V, opening at 200 °C with 6.3 mm pins and 50 000-cycle life

  • Opens at 200 °C for reliable over-temperature protection
  • Normally closed contact stays powered until the set point is reached
  • Rated 10 A at 110 V, 120 V or 250 V for broad appliance compatibility
  • 3 mm pins fit standard 0.25 inch terminals for easy installation
  • Tested to 50 000 cycles and 2 000 V AC with no arc phenomenon

Thermal cut-out for heating elements

A pack of five KSD301 switches rated at 200 °C and 10 A provides over-temperature protection for appliances such as water heaters, coffee makers and dryers. Each unit uses a normally-closed bimetal contact that opens when the sensing temperature is reached. The 6.3 mm quick-connect pins suit standard spade terminals. The switches are supplied new and ready for installation.

Passive operation with no standby draw

The bimetal mechanism needs no external power, so it adds zero idle consumption to the circuit. Contacts are rated for more than 50,000 cycles and withstand a 2,000 V AC dielectric test with no arc breakdown. Rated voltages cover 110 V, 120 V and 250 V supplies. Automatic reset restores the circuit once the temperature falls below the trip point.

Direct replacement for OEM safety stats

The 6.3 mm pin spacing matches many factory-fitted thermostats in heating appliances, allowing a like-for-like swap without rewiring. Five pieces cover multiple units or provide spares for maintenance stock. Buyers who need adjustable trip temperatures or a normally-open action type will require a different switch design.

How it compares

Measured against everything we stock in Timer Switches & Smart Plugs, at today’s prices. Recalculated every night.

Price $7.99
Cheaper than about 96% of the 173 comparable items (median $25.99).

Specifications

Product
Brand nameUnique Bargains

Questions about this item

How do I wire the 6.3 mm pins on the KSD301 switch?

Slip 6.3 mm female spade terminals onto each pin; the switch is normally closed so the circuit runs through it until 200 °C opens the contacts.

When will the contacts wear out on these thermostats?

Rated for more than 50,000 action cycles; replace the unit once the contact life is approached.

What voltage limit appears first during continuous 200 °C operation?

The dielectric strength is tested at 2000 V AC for one minute; sustained voltages above that level will break down the insulation.

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