Less heated air is extracted to outside, and less electricity consumed if the fan operates only while the work is in progress. Two basic options give either the ability to switch on/off the fan manually at the hood, or automatically with a sensor clamp. Single phase power supply of the Operation Box, 110/120-220/240V, 50/60Hz
• Consists of a fan contactor and an Operation Box • The automatic Fan Control has a sensor clamp to be attached on the ground cable of the welding set for automatic start of the fan. It is able to detect currents from 8A • The Operation Box consists of a transformer 30VA for the light kit in the extraction arm, a timer for delay of fan stop variable 0-5 minutes, two separate connections for sensor clamps