KSD Series Resettable Thermal Switch
These snap-action devices automatically reset at preset temperature. An electrically isolated bimetal disc is used to either open or close the circuit current.
Applications
- Rice Cooker - Dishwasher
- Boiler - Washing Machine
- Water Heater - Oven
- Water Dispenser - Dehumidifier
- Coffee maker - Water purifier
- Fan Heater - Bidet
- Sandwich Toaster - Other Small Appliances
Features
- Automatic reset for convenience
- Compact, but capable of high currents
- Temperature control and overheating protection
- Easy mounting and quick response
- Optional mounting bracket available
- UL and CSA recognized
Use | Temperature control/Overheat protection |
Reset type | Automatic |
Base material | resist heat resin base |
Electrical Rating | 15A / 125VAC, 7.5A / 250VAC |
Max. Operating Temperature | 150°C |
Min. Operating Temperature | -20°C |
Tolerance | +/-5 C for open action(Optional +/-3 C or less) |
Protection class | IP00 |
Contact material | Solid Silver |
Dielectric Strength | AC 1500V for 1 minute or AC 1800V for 1 second |
InsulationResistance | More than 100MW at DC 500V by Mega Ohm tester |
Resistance Between Terminals | Less than 100mW |
Diameter of bimetal disc | Φ12.8mm(1/2″) |
Approvals | UL/ TUV/VDE/CQC |
Terminal type | Customized |
Cover/Bracket | Customized |
Automatic Reset: A thermostat that automatically resets to its pre-trip contact configuration at a factory preset temperature.
Bimetal: Two metals with different rates of expansion molecularly bonded together to form a blade or disc for a thermostat.
Differential: (also known as Hysterisis) Refers to the difference between the opening and closing temperatures of a thermostat.
Maximum Temperature: (TM or Tm) In reference to a thermal cutoff, the maximum temperature to which the device can be subjected for a period of ten minutes without resuming conductivity once it has opened.
Minimum Differential: (also known as deadband) The minimum number of degrees between the actual open and actual close temperatures.
Normally Closed: Contacts open on temperature rise.
Normally Open: Contacts close on temperature rise.
S.P.D.T. (Single Pole/Double Throw): A three terminal switch possessing both Normally Open and a Normally Closed contact configuration.
S.P.S.T. (Single Pole/Single Throw): A switch with a single set of terminals and a single set of contacts.
Snap Action Thermostat: A thermostat with a Bimetal element that snaps to close the contacts when the activation condition is experienced. This construction permits the clean break of loads.
Thermal Cutoff: A thermal cutoff is an electrical safety device that interrupts electric current when heated to a specific temperature.
Tolerance: The allowable range above and below a nominal temperature.
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