Gould Shawmut A4BX400 Type 150J Fuse Welder Protector is a protective device for welding circuits, designed to interrupt fault currents and safeguard welding equipment. It is rated for 400 A at 600 VAC, making it suitable for high‑current welding power feeds. The model number A4BX400 identifies this unit within Gould Shawmut’s fuse welder protection lineup, incorporating the Type 150J protection specification.
