Industrial Bernard 400A BTB Miller Tough Lock QL QLLA MIG Gun

Bernard BTB 400A MIG gun, 15 ft, air‑cooled, rated up to 400 A, built for heavy‑duty industrial welding with a Miller Tough Lock connector and a.045 in (1.2 mm) wire capacity. This BTB 400A model uses TOUGH LOCK consumables and a QUICK LOAD liner AutoLength system for faster liner changes and consistent wire feeding. It is offered in multiple configurations, including a C‑Series straight‑handle version with a 60° fixed neck and a B‑Series option with a 45° rotatable neck, allowing you to tailor reach and access to your application. The 15‑foot cable length paired with the Miller‑style connector aligns with the Bernard BTB line of high‑current, semi‑automatic MIG guns and supports Quick Load liner variants (QL AUTO) when ordering. As part of Miller’s Bernard BTB air‑cooled MIG gun family, this model is designed to deliver reliable current delivery and straightforward consumable changes for demanding welding tasks on thicker materials, using.045 in wire.