KSD301 Thermal Switch Bimetal Thermostat with 100000 Cycles Wide Temperature Range (-10~300°C) and Normally Closed Function

The KSD series thermostat operates on the principle of bimetal discs snapping into action with temperature changes. This snap action activates internal contacts to open or close the circuit. Key characteristics include fixed working temperatures, reliable snap action, minimal flashover, long service life, and low 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)
• Life Cycle: ≥100,000 operations
• Contact Configuration: Normally closed or open
• Mounting Options: Movable or fixed bracket
• Terminal Types: 187 series (4.8×0.5mm, 4.8×0.8mm) or 250 series (6.3×0.8mm)
• Terminal Angle: 0-90° adjustable
• Body Material: Plastic or ceramic
• Sensor Face: Aluminum cap or copper head

Manual Reset: Requires button press to reconnect circuit after temperature drops ~20°C below trip point (4-6N force recommended).

Auto Reset: Automatically reconnects circuit when temperature drops to reset point.

Ideal for temperature control in household appliances including coffee makers, toasters, electric kettles, steam irons, microwave ovens, water dispensers, and similar devices.

UL, CQC, VDE and RoHS certified