Precautions for installation and use of low-voltage circuit breakers

1. predetermined low voltage circuit breaker shall be mounted vertically, which, at a predetermined connecting wire for use in wire cross section (or bus), must not be too small.
2. low voltage circuit breaker trip unit setting current parameters and other features and selection of parameters, a good tone was allowed after arbitrary changed. After use for a long time to check whether its spring rust stuck, preventing affect the correct operation.
3. After the overhaul to fit in the case of uncharged, fractional, accurate and reliable tested and then put into operation.

It should be noted that: In recent years, a new switch design produced on the basis of the low voltage circuit breaker - earth leakage circuit breaker. In addition to it not frequently start and can find protection line power overload and short circuit load, or infrequent line conversion machine motor, further having a protection zone occurs quickly cut off when the fault circuit personal electric shock or power leakage, leakage functions protective role; more details will be mentioned in future studies.