DFY-1 Energy Metering Joint Terminal Box dedicated in standard electric energy metering device wiring junction box, can also be applied to rated voltage 660 v, rated current to 20 in the secondary loop of Ann, under the condition of loading safety switch or field test of watt-hour meter, electric meter, relay protection of electric equipment, ensure the personal safety operation, improve the efficiency of field work, played a positive role to improve the measurement accuracy. I plant products in the power system has a good reputation, welcome users to send away to our factory to negotiate ordering, we would like to sincerely service for you.
Second, the structure characteristics

     DFY-1B   energy metering joint junction box products for new products in the new century, the quality is good, the adoption of the polymer injection system of polycarbonate material imported from Japan, bright green, beautiful shape, it has high impact strength, not easy fracture; Resistance to moisture, insulation performance is good; Anti-aging, flame retardant, high temperature resistant; Can in - 40 ºC to + 120 ºC within the scope of work for a long time; Connection screw combination with composite slot process, a word cross two with a screwdriver. The junction box cover plate with two can seal screws, is conducive to preventing electricity-stolen work.
Three, main technical index
1. The rated insulation voltage: 50 hz, 660 v;
2. The current rating: 5 a (20 a);
3. The power frequency withstand voltage: 3000 v, lasted a minute;
4. The insulation resistance: 30 m Ω st13;
5. The environment temperature: - 40 ºC to + 60 ºC
Four, appearance and installation dimensions


Terminal Connection


1PC 3p4w Watt Hour Meter and 1PC DFY-1  3P4W Energy Metering Joint Connecting Box