KSD301 H31 Bimetal Thermostat Temperature Controller with 100000 Cycles and -10~300°C Range for Automobile Cooling Fan

The KSD301 (H31) bimetal thermostat is a precision temperature control device designed for automotive cooling fans and various household appliances. This thermal protector features reliable snap action with minimal flashover and long service life.

The thermostat utilizes a bimetal disc that snaps into action when sensing temperature changes. This mechanical action pushes contacts to open or close the circuit, providing precise temperature control.

• Electrical Rating: AC 125V max 15A; AC250V 5A/10A/15A max 16A
• Action Temperature Range: -10°C to 300°C
• Recovery/Action Differential: 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 immovable bracket
• Terminal Types: 187 series (4.8×0.5mm/4.8×0.8mm) or 250 series (6.3×0.8mm)
• Terminal Angle: 0-90° bend optional
• Body Material: Plastic or ceramic
• Sensor Face: Aluminum cap or copper head

Manual Reset: Requires button press to reconnect circuit after temperature drops approximately 20°C below trip point.

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

Ideal for temperature control in automotive cooling systems and household appliances including:

• Coffee pots
• Automatic toasters
• Laminators
• Electric water pots
• Steam irons
• Microwave ovens
• Water dispensers

Open and reset temperatures can be customized according to customer requirements.