Bussmann NOS Series Class H fuses are ideal for high inrush current environments, such as motor circuits, transformers and power distribution systems. These Class H fuse units feature a balance between overload & short-circuit protection, ensuring the uninterrupted functioning of essential machinery. They have melamine body construction for enhanced durability, heat resistance and insulating properties. These Class H fuses have an AC voltage rating of 600VAC to protect high-voltage electrical systems.