1. Case 1.1 base: Steel sheet Weather proof steel sheet 1.2 meter cover: It is made of ABS material, flame resistand, in black colour with glass window. Meter cover can also be made of transparent glass, weather proof, and transparent plastic 1.3 terminal block: It is made of phenolic resin, flame resistant, in black color, voltage link can be inside the meter base or outside the meter base. Terminals are made of brass having two screws for tightening the external cables 1.4 terminal block cover Short steel cover rubber underside the cover assures insulation between the cover and the terminal block Short ABS cover non flammability of ABS, cover conforms to requirements of IEC60521 Extended steel cover rubber underside the cover ensures insulation between the cover and the terminal block, access is available at each side of the terminal cover for external cables 2. Driving element Current electromagnet The overload compensating set mounted on the laminated silicon steel core assures the excellent load curve performance Voltage electromagnet The design of voltage electromagnet permits to withstand the impulse voltage of 6kv.

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