Weltronic 210-0149 NL-1051A SIZE B Ignitron Ignitor Tube

Description:

The Weltronic Ignitron Ignitor Tube 210-0149 NL-1051A Size B is a heavy-duty mercury-pool ignitron tube used in industrial resistance welding and high-current AC power control applications. Commonly installed in resistance welding machines, weld controllers, industrial rectifier systems, and legacy high-current switching equipment requiring controlled arc conduction and power regulation. Maintenance teams, OEMs, and industrial electrical technicians use this ignitor tube for welding system repair, replacement of failed ignitrons, and restoration of industrial power control equipment.

Applications:

The Weltronic NL-1051A ignitron tube is commonly used in industrial manufacturing environments requiring dependable high-current switching and controlled power delivery. It is frequently installed in resistance spot welding systems, industrial weld controllers, heavy-duty rectifier assemblies, and legacy AC control equipment where reliable arc initiation, high-current handling, and consistent welding performance are required for continuous production operations.

Technical Specifications:

• Brand: Weltronic
• Part Number: 210-0149
• Model: NL-1051A
• Size: B
• Product Type: Ignitron Ignitor Tube
• Tube Type: Mercury-Pool Ignitron
• Cooling Type: Water Cooled
• Application: Resistance Welding and AC Power Control
• Function: High Current Switching and Arc Conduction
• Suitable For: Industrial Welding Equipment
• Installation Type: Industrial Tube Socket Mount
• Operating Environment: Heavy Duty Industrial Applications
• Industrial Use: Weld Controller and Rectifier System Repair
• Compatible Equipment: Resistance Welding Machines and Power Controllers
• Construction Type: Metal Industrial Ignitron Tube
• Typical Installation: Welding Control Cabinets and Industrial Power Systems

Common Replacements:

• National Electronics NL-1051A
• Richardson Electronics Ignitron Tube
• SSRI Solid State Replacement Ignitron