Introduction
The Eaton Bussmann 400NHG3B-690 is a high-performance low-voltage NH fuse designed to provide reliable overcurrent and short-circuit protection in electrical power distribution systems. With a 400A rated current and 690V operating voltage, it is suitable for demanding industrial and commercial electrical applications.
General Description
The Eaton Bussmann Series 400NHG3B-690 is a Class gG/gL, Size 3 NH fuse featuring a ceramic body and knife-blade contacts. It is equipped with a live gripping lug and a combination fuse status indicator for convenient installation and condition monitoring. With a high interrupting capacity of 120 kAIC, it provides effective protection against high fault currents in low-voltage electrical systems.
High Current Protection
Rated at 400A, this NH fuse provides dependable protection against overloads and short circuits in industrial and commercial electrical installations.
690V Low-Voltage Application
Designed for systems up to 690V, it is suitable for a wide range of low-voltage power distribution and protection applications.
High Interrupting Capacity
The 120 kAIC interrupting capacity enables the fuse to safely interrupt high fault currents, helping protect electrical equipment and distribution networks.







