Bussmann KBC400 TRON Rectifier Fuse

The Bussmann KBC400 TRON Rectifier Fuse is a fast-acting, North American style semiconductor fuse designed to protect rectifier blocks in high-current power electronics. It is rated for 400 A and a maximum of 600 V, with an interrupting rating of 200 kAIC, and features a cartridge-body construction for straightforward field replacement. In distributor listings, the KBC-400 is often described as non-indicating, a common option when only protection is needed without a visual fuse-status indicator. As part of Bussmann’s TRON Rectifier Fuse family, the KBC-400 is intended for rapid protection of diodes in rectifier circuits, helping prevent damage from short circuits while accommodating normal load currents. Typical applications include rectifier blocks in DC power supplies and other high-current power-conversion circuits where fast response to overcurrent events is critical; when selecting a replacement, ensure the current rating, voltage rating, and interrupt rating precisely match your design requirements.