Description
The KSD302 is a heavy-duty bimetal disc thermostat used for automatic temperature control and overheat protection in industrial and electrical heating systems. It operates as a temperature-sensitive switch that opens or closes the circuit at a preset temperature, ensuring safe operation of equipment such as heaters, motors, transformers, and appliances.
Key Features
• Bimetal disc temperature sensing technology
• Automatic ON/OFF switching at preset temperature
• High current switching capacity for industrial loads
• Fast thermal response with reliable snap-action mechanism
• Available in normally closed (NC) or normally open (NO) types
• Compact metal housing for direct surface mounting
• Long mechanical and electrical life cycle
• High temperature stability and repeat accuracy
• Resistant to vibration and electrical noise
• Suitable for overheat protection and temperature control
Specifications
- Product Type: Bimetal Disc Thermostat
- Model Number: KSD302
- Operating Temperature Range: Typically 50°C to 180°C (variant dependent)
- Reset Type: Automatic reset (standard) / manual reset (variant dependent)
- Contact Configuration: SPST (NC / NO)
- Rated Voltage: 250V AC (typical)
- Rated Current: Up to 10A–16A (resistive load)
- Contact Material: Silver alloy contacts
- Housing Material: Metal / stainless steel cap
- Mounting Type: Surface mount (screw/bracket/clamp)
- Terminal Type: Faston / solder terminals (variant dependent)
- Electrical Life: ≥100,000 cycles (typical)
- Dielectric Strength: High insulation between contacts
- Operating Environment: Industrial temperature and vibration-resistant
- Application: Electric heaters, welding machines, motors, transformers, HVAC systems, household appliances, water heaters, industrial control panels, overheat protection circuits

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