400E-UW

Security concept

For the protection of the welder (diver) against electrical accidents
– Complies with the guidelines “BGV-D1” and “Code of Practice for the Safe Use of Electricity under Water”
– Increased safety due to a maximum open-circuit voltage of 60 (55) V-DC (permissible according to BGV: 65 V-DC)
– External emergency stop circuit for rapid mains-side disconnection of the device in hazardous situations
– Design-related passive open-circuit voltage limitation through secondary-switched design.
– Active open-circuit voltage limitation against mains fluctuations through special electrical protection circuits
– Output voltage limitation to 15 V DC during inactive welding or arc interruption
– Power electronics are switched off by an external enable switch
– Setpoint-dependent power output > 20 A
– Protection by switching off the power electronics in case of mains overvoltage

Application areas

– Stick electrode: Optimal properties with high-precision direct current for all electrode types, from acidic to basic. Integrated hot start and adjustable arc force ensure the best welding results in
all welding positions. High power reserves for special electrodes with over 100%
yield.
Gouging: Due to the high energy reserves and the associated high short-circuit currents of
over 1000 A, very good properties for arc cutting and gouging.

TIG: Possible to a limited extent with contact ignition and valve torch.