Industrial 120SA-4 328B-1 Firing Module Resistance Board

Description:

The Weltronic 120SA-4 328B-1 Firing Module Resistance Board is an industrial electronic control board used in SCR firing and power regulation systems for industrial automation equipment. Commonly installed in motor control systems, industrial drives, heating controls, and power conversion equipment requiring controlled firing circuit operation. Maintenance teams, OEMs, and system integrators use this board for equipment repair, retrofit projects, replacement of failed firing modules, and restoration of industrial control systems.

Applications:

The Weltronic 120SA-4 328B-1 firing module resistance board is commonly used in industrial electrical systems requiring precise SCR triggering and controlled power regulation. It is frequently installed in industrial drive systems, process heating equipment, motor speed controls, power supply assemblies, manufacturing machinery, and automation cabinets where stable firing control and dependable electronic regulation are required for continuous operation and equipment protection.

Technical Specifications:

• Brand: Weltronic
• Part Number: 120SA-4
• Secondary Number: 328B-1
• Product Type: Firing Module Resistance Board
• Application: SCR Firing and Power Regulation
• Compatible Systems: Industrial Control and Drive Systems
• Function: Controlled SCR Triggering and Resistance Regulation
• Installation Type: Panel Mounted Electronic Control Board
• Suitable For: Industrial Automation Equipment
• Operating Environment: Industrial Electrical Systems
• Industrial Use: Equipment Repair and Retrofit Applications
• Typical Installation: Automation Cabinets and Power Control Assemblies
• Control Type: Electronic Power Regulation Module
• Compatible Equipment: Motor Drives and Process Control Systems

Common Replacements:

• Eurotherm SCR Control Board
• Siemens Firing Control Module
• ABB Power Regulation Board