Touch the switch on the working principle of the introduction and need to understand many aspects of knowledge, please understand these aspects of details.
Terminal symbol
COM: common terminals
NC: normally closed circuit terminal
No: normally open terminal
1. rating
Rating refers to the value of switch characteristic and performance guarantee benchmark based on specific conditions. For example, rated voltage, rated current, etc.
2. Electrical life
Electrical life refers to the life of connecting rated load on contact and making and breaking according to specified conditions.
3. Mechanical life
The mechanical life of the light touch switch refers to the life when the switch is not energized on the contact and operated according to the specified operating frequency.
4. withstand voltage
Withstand voltage refers to the limit value of no insulation damage when a high voltage of 1 minute is applied to the specified measuring position.
5. Insulation resistance
Insulation resistance refers to the resistance value of the measuring part with the same resistance to voltage.
6. Contact resistance
Contact resistance refers to the electrical resistance of the contact part, generally indicating the resistance value including the conductor resistance of spring and terminal part.
7. vibration resistance
Vibration resistance refers to the vibration of the closed-circuit contact within the range of continuous opening for more than the specified time due to the vibration during the use of the switch.
8. Impact resistance
Impact resistance refers to the maximum impact value that the closed-circuit contact keeps opening for more than the specified time due to the impact in the process of using the switch.
9. Allowable on-off frequency
The allowable on-off frequency refers to the maximum operating frequency meeting the mechanical life (or electrical life).
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