KORFF H I and H2 is the output for the motor, regardless of whether it is positive or negative. The current input (power supply or battery) is the opposite but make sure that + and - are not interchanged. T... H I and H2 is the output for the motor, regardless of whether it is positive or negative. The current input (power supply or battery) is the opposite but make sure that + and - are not interchanged. The 4 pin connector is the connection for the two buttons. The two connections in the middle of the 4 pin connector are the common ones for the buttons and the two outer ones are the normaly close, so the switch contact. Просмотреть более