Multicomp Pro MP Manual Reset Thermal Switch, Normally Closed, 80°C

The Multicomp Pro MP Manual Reset Thermal Switch is a high-quality, snap-action thermostat designed for precise temperature regulation. It automatically senses when the ambient temperature reaches its set point of 80°C and switches to either activate or deactivate connected heating or cooling systems, ensuring optimal environmental control.

This normally closed (NC) switch operates reliably at ratings of up to 10A at 250V, making it suitable for a wide range of electrical loads. It is engineered for durability and safety, featuring a heat-resistant construction that can withstand temperatures up to 170°C. The unit requires a manual reset after tripping, providing an added layer of safety and control in critical applications.

Key Features and Construction

Constructed with robust materials for long-term reliability, the switch includes AgNi/Cu (T2) stationary and movable contacts, a brass stationary arm, and a PF case with an aluminium cap. The internal mechanism utilises a bimetal disc and an alloy copper movable arm for precise thermal response, coupled with a steel (nickel-plated) reset pin and a ceramic actuator pin.

Technical Specifications

It offers excellent electrical performance, with a low contact resistance of below 50mΩ at DC 5V/0.25A. The insulation resistance is exceptionally high, measuring above 100MΩ with DC 500V applied between the terminals and the cap. Furthermore, it boasts a strong dielectric strength, capable of withstanding 1500V AC for one minute between the same points.

Certifications and Applications

This thermal switch is certified to major international safety standards, including GB14536.1-2008, GB14536.10-2008, GB/T22687-2008, EN60730-1, and EN60730-2-9. Its compact, flange-mount design allows for secure attachment to surfaces, making it a versatile component ideal for temperature controllers, industrial automation, process control systems, and a