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By certification 
Dimension: 64 * 56mm
Cut-out size: 55 * 50mm
Measuring range: 0-600A
Secondary input signal: 5A
Accuracy level: 2.5
Instructions:
The ammeter should be connected in series with the consumer (otherwise it will be short-circuited and burn the ammeter). If an instrument used with a current transformer is required, it should be connected to the secondary end of the transformer. The measured current should not exceed the range of the ammeter (you can use the test method to see if it exceeds the range). It is not allowed to connect the ammeter to the two poles of the power supply without passing through the electrical appliances. Power supply, wires).
http://www.shenaometer.com/
