These are Meant for Measurement A.c. Quantities. Confirm to is 1248/83 Calibrated for 50/60 Hz.
Ammeter: Range 50ma to 100a Self-contained Higher Ranges Using Ct's Secondary 1a or 5a
Overload Scale 2,3 or 4 & 6 Times Load Can Be Provided.

Voltmeter: Range 15v to 600v Self Contained and Higher Ranges By Use of Pt.

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