Circuit Breaker Installation

1 earth leakage circuit breaker should be checked prior to installation on the nameplate data are consistent with the requirements.
(2) Do not install too close to high current bus and AC contactor.
3 leakage circuit breaker operating current greater than 15mA when it protects the equipment enclosure must be grounded reliably.
4 should take full account of the supply line power supply, voltage, and system grounding form.
5 Install leakage circuit breakers with short-circuit protection, must ensure that there is sufficient arcing distance.
6 Combined leakage circuit breaker control circuit connected externally, you should use copper wire, cross-sectional area of ??not less than 1.5m square meters.
7 Install leakage Circuit breaker ,  you can not remove the original low-voltage lines or equipment original ground protection measures, and the circuit breaker load side neutral, not shared with other circuits, in order to avoid malfunction.
8 installation must strictly distinguish between neutral and protective ground wire. Three-pole four-wire and four-pole earth leakage circuit breaker neutral should be connected in the circuit breaker, the neutral line through the circuit breaker can not be used as a protective grounding wire can not repeat grounded or connected to electrical equipment enclosure. The protective earth leakage circuit breaker can not pick one.
9 leakage circuit breaker protection scope should be independent circuit, not with other circuits have electrical connections. Leakage circuit breaker can not be used in parallel to protect the same line or electrical equipment.
10 After the installation, you should do the test button to check whether leakage circuit breakers reliable operation. Under normal circumstances should test more than three times, and the normal operation of the job.