KSD301 Bimetal Thermostat with 100000 Cycles Normally Closed or Open for Automobile Cooling Fan

The KSD series thermostat operates on the principle of bimetal discs performing a snap action in response to temperature changes. This action activates the internal contacts, ultimately controlling the circuit. Key features include fixed working temperature, reliable snap action, minimal flashover, long service life, and reduced radio interference.

• Electrical Rating: AC 125V max 15A; AC250V 5A 10A 15A max 16A
• Action Temperature: -10~300°C
• Recovery/Action Temperature Difference: 10-25°C (customizable)
• Temperature Deviation: ±3/±5/±10°C (customizable)
• Circuit Resistance: ≤50mΩ (initial value)
• Insulation Resistance: ≥100mΩ (DC500V Normal State)
• Dielectric Strength: AC50Hz 1500V/min, no breakdown (Normal State)
• Life Cycle: ≥100,000 operations
• Contact Configuration: Normally closed or open
• Mounting Bracket: Movable or immovable options
• Terminal Types: 187 series (4.8×0.5mm, 4.8×0.8mm) or 250 series (6.3×0.8mm)
• Terminal Angle: 0-90° bending angle (optional)
• Body Material: Plastic or ceramic
• Temperature Sensor Face: Aluminum cap or copper head

Manual Reset Type: Requires physical reset button press after temperature drops approximately 20°C below action point. Reset force: 4-6N recommended.

Auto Reset Type: Automatically resets when temperature drops to specified recovery point.

Note: For manual reset models, maintain minimum 20.4mm clearance between reset button and cover for proper operation.

Ideal for temperature control in household appliances including coffee pots, toasters, laminators, electric water pots, steam irons, microwave ovens, water dispensers, and automotive cooling systems.

UL, CQC, VDE and RoHS certified.