OSAKA, JAPANTHERMAL FUSES & AUTO-RESET PROTECTORS
KUNANTENSEIPRODUCT PORTFOLIO

Products

BTT thermal fuses, KSD02 and KSD05 thermal protectors.
Compare operating behavior, electrical ratings and temperature options.

—AVAILABLE NOW

Our current products

Visit each product page for specifications and selection guidance.

01 / BTT / THERMAL FUSEAvailable for inquiry
BTT series thermal fusesBTT
SERIES
One-shot overtemperature protection

BTT Thermal Fuse

Metal case, non-resetting. AC 250 V at 10 A / 15 A. Select by Tf, holding temperature and installation conditions.

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02 / KSD02 / AUTO RESETAvailable for inquiry
KSD02 Thermal Protector
Compact automatic reset

KSD02 Thermal Protector

Bimetal thermal protector. AC 250 V / 2 A; operating temperatures 40–150°C. NC/NO and case options depend on the selected temperature.

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03 / KSD05 / AUTO RESETAvailable for inquiry
KSD05 Thermal Protector
Match your electrical load

KSD05 Thermal Protector

Bimetal thermal protector. AC 250 V / 5 A; operating temperatures 60–150°C. Check AC and DC ratings separately.

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Prices, stock, minimum quantities and lead times are confirmed for the specific part and requirements.
—SERIES COMPARISON

Start with operating behavior.

BTT / KSD02 / KSD05 comparison
ParameterBTTKSD02KSD05
OperationNon-resettingAutomatic resetAutomatic reset
Rating at AC 250 V10 A / 15 A2 A5 A
Temperature optionsTf 73–257°C40–150°C (±5°C)60–150°C (±5°C)
Intervals21 discrete ratings5°C steps5°C steps
ContactsNormally closed; opens onceNC / NO, temperature-dependentNC / NO, temperature-dependent
Product detailsBTT ↗KSD02 ↗KSD05 ↗

BTT Tf and KSD operating temperature are different specifications. Equal temperature values do not establish interchangeability; also check the load, reset behavior and installation.

—COMING NEXT

Products in preparation

These products are not yet available for sale. Specifications and launch dates have not been announced.

In preparation

Gas sensors

Planned product category. Product details and specifications will be added when the range is introduced.

Future plans
In preparation

Temperature sensors

Planned product category. Product details and specifications will be added when the range is introduced.

Future plans
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