18 Years Factory XJM7-W Measuring Box (Outdoor Energy Measuring Box) to Bangladesh Factories
Exterior and dimensions
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XJM7-K measuring cabinet (outdoor street lamp measurement control box) is suitable in power supply line with AC 50HZ, rated insulation voltage 660V, rated voltage 380/220v, as energy measurement equipment of residential quarters, villas energy measurement etc.
In line with GB7251.1-1997 and GB7251.3-1997 standards.
Some gentle testing of an old breaker. Applied it across the output of an arc welder, and it tripped very fast with ca140A through it. Even after it caught fire it still would trip.