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This listing is for a USED Fronius TPS 400i /nc welding power source. The TPS 400i is an inverter‑based industrial welding power supply rated up to 400 amps and designed for high‑performance MIG and automated welding applications. This unit operates on three‑phase input power and is commonly integrated into robotic or mechanized welding systems when paired with compatible Fronius feeders and control interfaces.
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