Bussmann ALS-400 Industrial Fuse 400A High Current

ALS-400 is a 400 A forklift-limiter fuse from Bussmann’s ALS series, a bolt-on, high-current industrial fuse used to protect heavy equipment power circuits such as forklifts and other material-handling systems. The ALS family lists a 400 A rating with voltage ratings that vary by variant; examples include a 600 V fast-acting version and other configurations like 48 V DC forklift circuits, with the ALS-400B variant specified as a 125 V one-time fuse for specialty uses. In typical installations it is a non-indicating, bolt-on fuse designed for primary protection in power distribution and traction circuits, compatible with Bussmann/Eaton Bussmann series fault protection devices. Common applications include protection of wiring, controllers, and motors in industrial vehicles and DC power systems used in warehouses and manufacturing environments.