APM Series AC Voltmeter, Can Use Potential Transformer with Secondary Voltage

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Conform to IEC51, enclosure in self-extinguishing plastic
Operating temperature: -25 to + 45 degrees
Storage temperature: -40 to + 70 degrees
Class: 1.5
Scale 90 (240 scale on request)
Test voltage: 2kV, 50Hz, 1 minutes
Size: 96 x 96, 72 x 72 (48 x 48 on request)
Moving iron instrument, overload withstand capacity: 2Xln
Accuracy: class 1.5
Specifications: 30, 50, 75, 100, 120, 150, 200, 250, 400, 450,500, 600V for 450 to 450kV, meter can use potential transformerwith secondary voltage