Voltmetric Switch

Voltmetric switches perform the switching for voltage measurement, enabling the indication of different voltage combinations on the voltmeter. They range from simple voltage measurement in a single-phase circuit to switching between different phases or between phase and neutral.

THS Rotary Keys are manufactured in 4 size families. The maximum dimensions and drilling dimensions for fixing the keys to the equipment are given in the following tables. The dimensions basically depend on the key size family (D0, D1, D2 or D2x2), the type of key fixation (at the top, “E” or at the base, “V”) and the number of chambers that make up the key .