Lincoln Electric Flextec 350X PowerConnect Multi-Process Welder (Tweco) #K4273-2

Versatile Multi-Process Power Source with Advanced PowerConnect Technology

The Lincoln Electric Flextec® 350X PowerConnect® is a highly flexible multi-process welding power source designed for various applications. With its innovative PowerConnect technology and CrossLinc capabilities, this unit offers unparalleled versatility and ease of use across different job sites and power configurations.

NEW From Previous Version:

• Software Update Capabilities: New models are capable of software updates via USB.
• Enhanced Crosslinc® Control: New models now allow remote weld mode changes via Crosslinc, and automatic weld mode selection (Process Select Assist) based on connected Crosslinc Accessory.

Processes

• Stick
• TIG
• Pulsed & CV MIG
• Arc gouging

Highlights

• PowerConnect Technology: Auto-connects to 200-575VAC, single or three-phase, 50/60Hz for seamless setup.
• Multi-Process Capability: Supports Stick, TIG, MIG, Flux-Cored, and Carbon Arc Gouging.
• Built-In Pulse Programs: Optimized pulse settings for various materials with compatible ArcLink feeders.
• CrossLinc Technology: Enables remote control without extra cables for better flexibility.
• Feeder Compatibility: Works with CrossLinc, 14-pin analog, and 5-pin ArcLink digital feeders.
• Extreme Durability: Engineered for proven reliability in harsh environments.

Key Features

• Automatic voltage sensing and adjustment with PowerConnect technology
• Supports pulsed MIG welding with compatible ArcLink wire feeders
• CrossLinc Technology for remote control and improved efficiency
• Versatile compatibility with various wire feeder types
• Designed for reliability in harsh working conditions

Benefits of the Flextec® 350X PowerConnect®

• Enhanced Versatility: Easily adaptable to different input voltages without manual reconnection
• Improved Productivity: CrossLinc Technology allows remote control without additional cables
• Increased Flexibility: Compatible with a wide range of wire feeders and welding processes
• Simplified Setup: PowerConnect technology automatically adjusts to available power sources
• Reduced Downtime: Proven reliability in extreme environments minimizes maintenance needs
• Advanced Welding Capabilities: Built-in pulse programs for various materials (with compatible feeders)

Fast, Free Shipping & Easy Returns

At Welders Supply, we prioritize fast, reliable shipping and hassle-free returns. If you’re not fully satisfied with your purchase, you can return it within 14 days for an exchange, credit or refund. Please ensure all products are returned freight paid, in their original packaging, with all materials, manuals and accessories included. A restocking fee of up to 25% may apply based on product condition. Certain restrictions apply to custom orders, PPE and demo items. Call our customer service team at 1-844-682-0205 for assistance.

Check out our selection of welding equipment and accessories from Lincoln and other brands.

This product replaces these legacy models:

• Flextec® 350X PowerConnect® Welder w/ Tweco® Connector (200-600V 1/3PH) #K4273-1

General Specification

Machine Technologies & Connections

Application

Warranty

• Flextec 350X Product Info
• CrossLinc Technology Brochure

Product Questions and Answers

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