Analog voltmeter E47 300V accuracy class 1.5 96x96mm IEK IPV20-6-0300-E

Used in low-voltage switchgear in distribution electrical networks of residential, commercial, and industrial facilities. E47 voltmeters - analog electromagnetic electrical measuring instruments - are designed to measure voltage in AC electrical circuits. Comply with the requirements of GOST 30012.1, 8711, 22261; GOST R 52319, 51522, 51317.3.2, 51317.3.3 and are manufactured according to technical specifications TU 4223-023-18461115-2008. E47 electrical measuring instruments are entered in the State Register of Measuring Instruments. A certificate of type approval for measuring instruments has been obtained. Operating principle: E47 voltmeters belong to instruments with an electromagnetic system. They consist of a round coil with movable and stationary cores placed inside. When current flows through the coil turns, a magnetic field is created that magnetizes both cores. As a result, like poles of the cores repel each other, and the movable core rotates the axis with the pointer. To protect against the negative influence of external magnetic fields, the coil and cores are protected by a metal shield.