|Enterprise code||Shanghai Yuhuang electric co.,ltd|
|Product category||Moulded case circuit breaker|
|Part no.||300 no part(please see the release part no.table)|
|Use no.||None=power distribution type breaker 2=protect motor|
|Operation type||None=handle direct operation,P=Electric operation,Z=Rotating handle operation|
|N pole shape||Four poles products’ N polar form:A type:N polar do not install over-current release,and N polar electrifies all the time,at the same time,N polar does not open and close together with other three poles.B type:N polar do not install over-current release,and N polar opens and closes together with other three poles.C type:N polar installs over-current release,and N polar opens and closes together with other three poles.D type:N polar installs over-current release,and N polar electrifies all the time,at the same time,N polar does not open and close together with other three poles.|
|Writing||None=front board connection,R=behind board connection,PR=Plug-in connection|
YEM1 series moulded case circuit breaker(hereinafter referred to circuit breaker) is applied in the circuit of AC 50/60HZ,its rated isolation voltage is 800V,rated working voltage is 400V,its rated working current reaches to 800A. It is used to transfer infrequently and infrequent motor start(lnm≤400A). Circuit breaker with over-load, short circuit and under-voltage protection function so that protects the circuit and power supply device from being damaged. This circuit breaker has the features of small volume,high breaking capacity,short arc and anti-vibration.
Circuit breaker can be installed in a vertical way.
Circuit breaker has isolation function.
3.Tolerance to the influence of moist air.
4.Withstand the effects of smoke and oil mist.
5.Pollution degree 3.
6.Maximum inclination is 22.5℃.
7.In medium without explosion danger,and the medium is not enough to corrode.
8.Metals and places that destroy insulating gases and conductive dust.
9.In the absence of rain and snow.
10Installation category Ⅲ.