Definition of universal circuit breaker or Frame circuit breaker

Frame circuit breaker
Frame circuit breaker

The universal circuit breaker, also known as the frame type circuit breaker, is a kind of mechanical switch appliance that can connect, load and split the current under normal circuit conditions, and can also connect, load a certain time and break off the current under the prescribed irregular circuit conditions.

The universal circuit breaker is used to distribute electric energy and protect overload and under voltage and short circuit of line and power supply equipment.

Function introduction of universal circuit breaker:

The circuit breaker is a three-dimensional layout, and the contact system, the instantaneous over current release and the left side plates are all mounted on one insulation board.

The upper part is equipped with arc extinguishing system, and the operating mechanism can be installed in front or right side. There are “dividing”, “closing” instructions and manual disconnecting buttons.

The upper left part is equipped with a shunt release, and the back is equipped with an undervoltage release connected with the tripping half shaft.

The fast saturation current transformer or the current voltage converter are sleeved on the lower bus bar. The undervoltage delay device, thermal relay or semiconductor release can be mounted below.