Operation modes: 2-takt, 4-takt, spot and interval 
Adjustable motor speed, pulse and interval and burn-back-time. 

For 24V or 42V DC motors up to 65W. Threading (motor without contactor and gas) Magnetic valve and current contactor 24V-42V~ This control card is normally interchangeable with WEL4.3 . For a new installation a thermal switch and an indicator light can be added as well.