Unique-Bargains
Unique-Bargains KSD301 90°C 10A 250V M6 N.C electrical timer switch
A normally closed thermostat that opens at 90 °C, rated 10 A at 250 V with an M6 thread and automatic reset
- Automatic reset restores operation without manual intervention
- Normally closed contact opens at 90°C to protect equipment
- Rated 10A at 250V for high-capacity circuits
- Copper and bakelite construction resists arc formation
- M6 thread allows direct mounting in appliances
Product Identity
The Unique-Bargains KSD301 is a normally closed thermal switch rated for 10A at 250V. It opens the circuit automatically when the sensing temperature reaches 90°C. The device suits equipment builders and maintenance engineers who need a simple over-temperature protection component for heating appliances.
Thermals and Power
The copper and bakelite body reacts quickly to temperature change, opening the contacts at the 90°C set point with no arc phenomenon. Because the reset is automatic, the switch closes again once the temperature falls, restoring power without manual intervention. Rated for 10A continuous current, it handles typical heating element loads directly.
Build Integration
The M6 threaded body allows direct mounting into tapped holes on water heaters, coffee machines, dryers or similar appliances. No external control wiring or separate power supply is required; the switch sits in series with the load circuit. Its compact form factor leaves internal enclosure space unaffected while providing reliable thermal cut-out protection.
Highlights
- Automatic reset restores operation without manual intervention
- Normally closed contact opens at 90°C to protect equipment
- Rated 10A at 250V for high-capacity circuits
- Copper and bakelite construction resists arc formation
- M6 thread allows direct mounting in appliances
Specifications
| Brand | Unique Bargains |
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Questions about this item
How do I install the M6 thread on the KSD301 90°C switch and what step is often missed?
Screw the M6 thread into the appliance's mounting hole and tighten securely; the step often missed is verifying the copper sensing element sits flush against the heated surface for accurate 90°C detection.
What maintenance or replacement will the KSD301 90°C thermostat need over time?
The automatic reset function allows repeated cycling at 90°C without manual intervention; replace the unit if the contacts fail to open at the rated temperature or if the bakelite body shows cracking from thermal stress.
What limit appears first on the KSD301 90°C switch during sustained high-temperature operation?
The 10A 250V contact rating is the first limit; sustained loads near 10 amps at 250 volts can accelerate contact wear and arc formation, causing the switch to open prematurely or fail to reset.
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