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The products of L7 belong to the advanced level of the nineties in the world instead
of the older generation of L7. They have protective function of short circuit
and overload, and are used in lighting distribution system in industry, commerce
and dwelling, and protect fractional electric motors. And they also have many
merits of high protective grade (up to IP20), high break capacity, reliable sensitive
action, convenient, multi-pole assembling and long life. They are mainly
adapted to the circuit of AC 50Hz, 230V in single pole, 400V in double, three,
four poles for protecting overload and short circuit. Meanwhile, they are also
used in turning on or off the electric apparatus and lighting circuit under the
normal condition |
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