Purpose:
The ZB series rotary rheostat is suitable for voltage and current control in electrical equipment below 500 volts, as well as for motor excitation adjustment, speed regulation, load, etc.
Structure:
The ZB series rotary rheostat consists of resistance elements and conversion devices. The resistance elements are made up of resistance wires wound on ceramic tubes or separately hollow wound into spiral elements with insulating ceramic pads fixed in iron boxes. The rotating part is exposed on the surface of the iron box, and the panel is made of asbestos cement board or glass fiber insulation board.

ZB series rotary rheostat