Factory directly sale XJM7 Measuring Box (Low Voltage Power Measurement Box) Wholesale to South Korea
Exterior and dimensions
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XJM7 series of lighting Power metering box is suitable in power centralized measurement management of apartment buildings office buildings. Pulse-type power meter can be installed to according to the design needs to achieve computer management. Besides, proper location is preserved to install remote-measuring remote sensing equipment. There are small circuit breakers installed in the cabinet to protect the line from overload, short circuit. The power meter and circuit breaker rated current are selected by design.
In line with GB7251.1-1997 and 7251.3-1997 standards.
This is what happens if you dont use the specified fuse wire or circuit breaker in your house switch board.
This was a piece of 1.5mm Twin + Earth (rated for 16A) hooked up to a 50A circuit breaker. I used a welder as a current source set to a maximum of 120A (an expected full load current given the normal fault loop impedance)