Westinghouse 116D977A35 Power Fuse Refill BA-400

The Westinghouse 116D977A35 BA-400 Power Fuse Refill is a medium-voltage, E-rated expulsion fuse refill engineered to protect transformers, feeder circuits, switchgear, and distribution systems in industrial and utility power networks. As part of the BA-400 family, it is rated at 150E amperes and 14.4 kV, designed for operation at 50/60 Hz with high interrupting capacity for overcurrent and short-circuit events. This replaceable fuse refill unit is intended for installation in Westinghouse BA-400 fuse holders and switchgear assemblies, and is commonly used in substations, industrial plants, utility distribution networks, and commercial power systems. Common replacements include Eaton BA Series Medium-Voltage Power Fuse Refills, Bussmann E-Rated Medium-Voltage Fuse Refills, and S&C SM Power Fuse Refill Units.