Secondary Disconnects (stabs) The secondary disconnects bring power from the control circuits into the circuit breaker. Photo 4 shows an LVPCB and its secondary disconnects. The typical arrangement ...

Pressing the stop button drops out the SI coil, stopping the motor. Indicator lamps — red for running, green for stopped — can also be used. This basic control circuit forms the basis for much more ...

Directional-control valves are vital in any pneumatic circuit, directing or blocking airflow to control the speed or sequence of operations.

Motor control requires three basic elements: a motor, a drive, and one or more feedback devices. The drive controls current in order to produce torque; drives also commonly control velocity and ...

But do you have any idea how those constant current circuits work? If not, then [Giorgos Lazaridis’] guide on LED driving and controlling methods will bring you up to speed in no time.