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Figure 3 Outline and installation dimensions
VII. Use and Maintenance
1. Fix the earth leakage circuit breaker vertically (please use a Phillips
screwdriver to prevent damage to the housing). The appearance of the
earth leakage circuit breaker is in good condition, and no-load operation
works normally. The rated values of the earth leakage circuit breaker
and its accessories shall be consistent with the working conditions of the
installation site. As the earth leakage circuit breaker is equipped with
electronic circuit board, it is forbidden to measure the phase-to-phase
insulation resistance between the outgoing line terminals of the earth
leakage circuit breaker to avoid damaging electronic elements. If the
insulation test is carried out, it’s required to
a) Use a 500 V megger;
b) Measure the insulation resistance between terminals 1-2, 3-4 and
5-6 when the earth leakage circuit breaker is switched off;
c) Measure the insulation resistance between the terminals of the
main circuit and the shell (covered with metal foil) when the earth
leakage circuit breaker is closed;
d) The measured insulation resistance shall
not be less than 1.5 MΩ.
2. The incoming line of the power supply must be directly above the earth
leakage circuit breaker, that is, the side marked with "1, 3, 5, N", and the
load conductors (including the neutral wires) must pass through the
earth leakage circuit breaker, and the load neutral wires must be
insulated from the ground.
3. The handle of the earth leakage circuit breaker can be in three positions:
"Closed", "Open" and "Tripped". When the handle is in the trip position,
it shall be pulled in the "Open" direction to make the circuit breaker trip
again, and then the "Closing" operation can be carried out.
Flash barrier
Flash barrier
Flash barrier
