Master S series MMA power sources are designed for high-performance professional welding, offering compact, robust and portable MMA power solutions with optimum energy efficiency. A perfect partner for heavy-duty MMA welding where the ease of use, reliability and durability are paramount.
The powerful 400 or 500 amp power sources provide reliable welding results with efficient ignition. Suitable for use with a wide voltage network, Master S also integrates Voltage Reduction Device (VRD) for increased safety at work.
BENEFITS
- Hot start and arc force adjustment for optimised starts and arc control with alternative electrode types, guaranteeing flawless and stable weld pool control every time.
- Antifreeze cuts off the power and protects the electrode if sticking occurs during welding
- Contact ignition (Lift TIG) in DC TIG
- Arc gouging
- Parent power supply CC/CV for Kemppi voltage-sensing wire feed systems and in-line TIG solutions.
- Including cellulose welding characteristics
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Technical data
Description Value Mains connection voltage 380...440 V ±10 % Mains connection phases 3~50/60 Hz Mains connection cable type 4G, H07RN-F Mains connection cable size 4 mm² Maximum supply current [I1max] 26 A Effective supply current [I1eff] 20 A Rated maximum input power [S1max] 18 kVA Mains fuse 25 A Open circuit voltage (MMA) [Uav] 80 V...95 V Output at +40 °C, 60% TIG 400 A Output at +40 °C, 100% TIG 310 A Output at +40 °C, 60% MMA 400 A Output at +40 °C, 100% MMA 310 A Output range, TIG 30 A / 5 V ... 400 A / 48 V Output range, MMA 30 A / 12 V ... 400 A / 48 V Power factor at rated maximum current [λ] 0.89 Efficiency at rated maximum current [η] 89 % EMC class A Minimum short-circuit power of supply network [Ssc] 4.8 MVA Stick electrode diameter 1.6 mm...6 mm Welding connection type DIX Operating temperature -20 °C...50 °C Storage temperature -20 °C...60 °C Recommended minimum generator power [Sgen] 25 kVA Degree of protection (fully installed) IP23S External dimensions, length 570 mm External dimensions, width 270 mm External dimensions, height 370 mm Weight without accessories 20.5 kg Standards IEC 60974-1, -10