Product Introduction
The FH1 series auxiliary switch is a product developed by our company based on the FH series auxiliary switch to respond to the trend of miniaturization of high-voltage complete sets of equipment. It has a more beautiful and compact appearance, reducing the installation space of the switch. It is suitable for controlling the closing, opening, interlocking, and signal circuits of various high-voltage switch operating mechanisms, and can also be used as a conversion or combination switch. It is more suitable for use in operating mechanisms with smaller internal Spaces such as GIS combined electrical apparatus.
Switch selection
8K8B、16K16B
Application equipment
Spring mechanism
Environmental conditions
1、Ambient air temperature: -40℃ to +70℃;
2. Altitude: No more than 5,000 meters;
3. Humidity: The average relative humidity within 24 hours shall not exceed 95%. The average pressure of water vapor does not exceed 2.2kPa. The monthly average relative humidity shall not exceed 90%. The average pressure of water vapor does not exceed 1.8kPa.
4. The vibration acceleration shall not exceed 15m/s².
5. The surrounding air is not obviously polluted by dust, smoke, corrosive or flammable gases.
Working principle
The FH1 series auxiliary switch adopts an indirect drive structure. It rotates the square shaft to drive the CAM, and then the CAM pushes the switch connecting rod, causing the moving contact piece to move, thereby achieving connection or disconnection to control the electrical circuit.
Switch structure
The FH1 series auxiliary switches are composed of multiple units with the same structure. Both the moving and fixed contact pieces are made of pure copper, the contacts are made of silver alloy composite contacts, and the shell is made of high-quality flame-retardant high-strength nylon, which has good insulation performance, reasonable structure and good dust-proof performance.
Wiring method
Insertion and crimping
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