Product Introduction
This switch takes the FA switch as its main body. While inheriting the advantages of the FA switch such as compactness, reliability and high cost performance, it adopts a quick-opening and closing module with a mechanical structure that is ingeniously designed. It does not require power supply and operates flexibly and reliably. It is the preferred auxiliary switch for slow-speed mechanisms.
The Fa series auxiliary switches are composed of multiple units with the same structure.The moving contact piece is made of high quality phosphorous bronze, the fixed contact piece is made of high quality brass, and the insulation piece is made of imported high quality flame retardant polycarbonate material, with high strength, good insulation performance, reasonable structure and good dust resistance. The instantaneous opening and closing of the switch is achieved through the rapid opening and closing module.
Switch selection
8K8B、10K10B、11K11B、12K12B、20K20B、30K30B
Application equipment
Electric disconnector mechanism
Environmental conditions
1.Ambient temperature: -50℃ 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/s ²;
5. The surrounding air is not significantly polluted by dust, smoke, corrosive or flammable gases.
Working principle
The FA auxiliary switch with a quick opening and closing device is based on the FA switch. By adding a quick opening and closing module at one end of the FA switch, this module drives the switch body to achieve rapid opening and closing. When the switch shaft rotates 65°-75° from the opening position, the quick opening and closing module drives the switch body to close quickly, achieving an instant normally open and normally closed switching. The breaking capacity of the switch has been enhanced.
Switch structure
Slip out structure
Longdy's official account
