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ST-200A AC Resistance Weld Control

ST-200A AC Resistance Weld Control

  • Category:Alternating Current (AC) Welders
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  • Publication Time:2026-06-25
  • Product Details

ST-200A AC Resistance Weld Control

Formerly known as STA-200A

ST-200A is an advanced, yet simple AC welding control. Built in the USA< the ST-200A features an intuitive, easy-to-use programming interface and is designed to control and integrate projection welders, press welders, multi-gun machines, portable weld guns, seam welders, robotic systems, rocker arm welders and other special purpose machines.


Consumer Appliances

Nut and Stud Projection Welding

Electronic and Automotive Components

Aircraft Components

Office Furniture

Automotive Sheet Metal



Technical Specifications


Technology AC

Output Range Amps: 1,000 - 80,000

Weld Period Range 0 - 99 Cycles

Output Control Mode % heat control, secondary constant current

Open/ Closed Loop Closed

Built in Monitor Yes

Automation Ready Yes

Input Power 230 - 460 VAC

Single or 3 phase Single

Size (W x D x H) 25.4 in x 10 in x 30 in (645 mm x 254 mm x 762 mm)

Weight 134 lb (61 kg)

ST-Series-Technical-Datasheet.pdf

990-351-ST-100A-ST-200A-User-Manual-Rev-L.pdf