## Friday, April 15, 2011

### Weak current College】 【switch product technical parameters description】.

<br> <br> <br> 1. the maximum rated voltage means the normal working state switch be allowed to impose maximum voltage. If the AC power switch, usually with AC voltage for this parameter. <br> 2. the maximum rated .current is in working condition switch be allowed by the maximum current. 3, the contact resistance of the switch is switched on, the "contact" (contact) conductors of resistance values called contact resistance. ... <br> <br> 1 .. the maximum rated voltage <br> Normal working state switch be allowed to impose maximum voltage. If the AC power switch, normally used for the AC voltage; <br> <br> 2. the maximum rated current <br> Refers to normal .working condition switch be allowed by the maximum current. If the callout to AC voltage (AC) power also refers to the Exchange; <br> <br> 3. contact resistance <br> Switch is switched on, the "contact" (contact .) conductors of resistance values called contact resistance. This value requires that the smaller the better, more general switch in 20 m Ω (ie 0.02 Ω), some switch and use a long switch in 0.1 ~ 0.8 Ω; <br> <br> .4. insulation resistance <br> The specified unattached switch conductor resistance between the insulation resistance is called. This value, the larger the better, more general switch in 100 M Ω or more; <br> <br> 5. pressure resistance <br .> Also called dielectric strength, its meaning is specified unattached switches between the conductor's voltage tolerance. General switch at least larger than 100V power supply (AC); switches require greater than 500V (AC, 50Hz); <br> <br> 6. .life <br> Refers to the switch in the normal conditions of work of the valid time (number). Usually the 5000 ~ 10000, demanding switch 50000 ~ 500000; <br> <br> Experimental electronic production in General, the selection and swap .switch, in addition to the model or shape, you need to consider the arguments as long as attention rated voltage, rated current and three contact resistance. <br> <br> <br> <br> <br> <br> <br .> <br>.