CV 1 3 CC DC PHASE 60 50 Hz Publication E5.91 | Issue Date 7/10 © Lincoln Global, Inc. All Rights Reserved. Invertec® V350-PRO MULTI-PROCESS WELDERS Processes Stick, DC TIG, MIG, Pulsed(1), Flux-Cored, Gouging (1) Advanced Process model only. Product Number K1728-5, K1728-6, K1728-7 K1728-13, K1728-8, K2437-2 See back for complete specs Input Power see chart on back Input Current at Rated Output see chart on back Rated Output 350A/34V/60% Duty Cycle Output Range 5-425A Max OCV: 80V DC Weight/Dimensions (H x W x D) 81 lbs. (36.7 kg) 14.8 x 13.3 x 27.8 in. (373 x 338 x 706 mm) INPUT OUTPUT LINCOLN ELECTRIC ISO 9001:2000 14001:2004 Designed Smart. Built Tough. The multi-process Invertec® V350-PRO is an efficient, lightweight and portable choice for training, fabrication or construction applications. Available in Construction, Factory, Factory (Tweco®) and Advanced Process models, the versatile V350-PRO is ready for almost any welding job in shop or outdoor environments. FEATURES Exceptional Multi-Process Fabrication Welding - • CC - Stick Soft • CC - Stick Crisp • DC TIG • CV - Wire – For MIG and Metal-Cored • CV - Innershield® and Outershield® Flux-Cored • Arc Gouging – Accessible from All Modes – Plenty of power to handle a 5/16 in (7.9 mm) carbon All input voltages and frequencies are both single and three phase rated - No output derating necessary on single phase. 5-425 amp output range - For all recommended processes from DC TIG to arc gouging. Input voltage from 208-575 and 50 and 60 Hz operation - One machine runs on virtually any input power supply. Touch Start TIG® - For contamination-free starts. Low power consumption for energy savings - 88% efficiency. Parallel two units - For 700A carbon arc gouging. Bright, large digital amp and volt meters are easy to monitor - Even in sunlight – and presettable for precise procedure control. Rugged skid and tube handles - For convenience and added protection. Shown K1728-6 THE LINCOLN ELECTRIC COMPANY 22801 St. Clair Avenue • Cleveland, OH • 44117-1199 • U.S.A. PH: +1.216-481-8100 • www.lincolnelectric.com Two Year Extended Warranty Available. APPLICATIONS Metal Fabrication Construction Structural Fabrication Schools and Training Facilities Maintenance and Repair RECOMMENDED FEEDERS LF-72 LF-74 LN-10 DH-10 LN-25 PRO LN-25 PRO Dual Power ADVANCED PROCESS MODEL INCLUDES Pulsed MIG – Varies weld current to reduce warping and burnthrough on thin materials. Pulse-On-Pulse® – Controls arc length and heat input to achieve excellent appearance and penetration on aluminum. Power Mode® – Delivers a responsive arc when MIG welding to reduce spatter, improve bead wetting and control penetration. Great for thin steel, stainless, silicon bronze and nickel alloys. www.lincolnelectric.com/green

KEY CONTROLS [ 2 ] | Invertec® V350-PRO 1) Large, bright, easy to read meters 2) Local/remote output control 3) Mode selection switch 4) Remote Output Control Receptacles – 6- & 14-pin 5) Negative and Positive Twist Mate® Output Terminals 6) Wire Feeder Voltmeter Polarity Switch 7) Circuit Breaker Reset Buttons 8) On/Off Switch 9) Arc Control Knob 10) Weld Terminals on or remotely controlled 11) Preset Output Amps and Voltage Control 12) Thermal Overload Indicator Light 1 3 8 5 10 9 12 11 6 7 • Standard Advanced Process Panel adds: – Pulsed MIG – Lincoln Electric Power Mode® – Lincoln Electric...

Invertec® V350-PRO | [ 3 ] V350-PRO Inverter Racks • An ideal system to group several inverter power sources in an industrial portable package. Entire system meets National Electric Code (NEC) Standards. • Includes Invertec® V350-PRO Factory (Tweco®) Model (K1728-13). This special rack version has all the same features as the factory model with added IP23S rating for outdoor use and Tweco® cable receptacles. Order: K2667-1 4-Pack Inverter Rack with 4 Invertec® V350-PRO Factory (Tweco®) Power Sources K2667-2 6-Pack Inverter Rack with 6 Invertec® V350-PRO Factory (Tweco®) Power Sources Ready-Pak®...

Remote Output Control Consists of a control box with choice of two cable lengths. Permits remote adjustment of output. Order K857 for 25 ft. (7.6 m) Order K857-1 for 100 ft. (30 m) TIG OPTIONS Pro-Torch™TIG Torches A full line of air-cooled and watercooled torches available. Request Lincoln publication E12.150 TIG Module Portable, high frequency unit with gas valve for TIG welding. Rated at 300 amps/60% duty cycle. Requires TIG Module Control Cable. Order K930-2 TIG Module Control Cable (For Factory and Advanced Process Models only) 9-pin connector at the TIG Module to 14-pin MS type connector...