BK05 250V 5A 80°C Plastic Thermostatic Temperature Switch NC

The BK05 250V 5A 80°C Plastic Thermostatic Temperature Switch NC is a compact and reliable thermal protection device designed to control circuit continuity based on temperature. It utilizes a bimetal disc as the sensing element, which opens and closes the circuit in response to temperature changes. This Normally Closed (NC) version keeps the circuit active under normal conditions and opens the circuit when the preset temperature of 80°C is reached, thereby acting as a thermal circuit breaker.

After cooling down to the reset temperature, the contacts automatically close again, restoring the circuit without manual intervention. This auto-reset functionality makes it ideal for use in applications requiring consistent thermal protection such as air conditioner motors, transformers, heating equipment, and various household appliances.

🔧 Key Features

• High-reliability BK05 250V 5A Thermostatic Switch with bimetal sensor
• Normally Closed configuration – opens at 80°C
• Auto-resetting function for repeated temperature cycling
• Durable plastic housing for insulation and safety
• Compact and easy to install in electrical systems
• Acts as a temperature-controlled circuit breaker

📐 Technical Specifications

📌 Applications

• Air conditioner compressors and motors
• Transformers and coil assemblies
• Household thermal appliances
• Industrial heat-sensitive devices
• Temperature-controlled circuit protection

💡 Why Choose This Temperature Switch?

The BK05 Thermostatic Switch provides a dependable and automatic thermal cutoff mechanism, protecting sensitive electronics and appliances from overheating. Its self-resetting design ensures long-term reliability and safety without the need for manual resets or external controllers.

📦 Package Includes

• 1 × BK05 250V 5A 80°C Plastic Thermostatic Temperature Switch NC