Eaton 400 A Fuse Holder, 3P-Pole for NH2 Fuse

This fuse holder is a three-pole device designed to house NH2 fuse-links for electrical distribution and protection in industrial switchgear. Intended for panel or DIN-rail mounting, it provides front-side actuation with visible sliding inspection windows for voltage testing and optical indication of a triggered fuse. The unit is suitable for installations requiring box-terminal connections and is manufactured from polyamide with halogen-free materials.

• 400A rated operational current enabling high-load applications
• 800V insulation rating for higher-voltage system compatibility
• 120 kA conditioned short-circuit capacity for fault containment
• Sliding inspection windows allowing safe voltage verification
• Box Terminal accepts 95mm² to 300mm² cable for heavy conductors
• IP2XC/IP20/IP10 protection offering progressive contact safety

• Suitable for factory distribution boards requiring NH2 fuses
• Ideal for switchgear in automation and control panels
• Used with large cross-section copper busbars in power rooms
• Can be used for floor-mounted or plate-mounted electrical assemblies

The main circuit uses a frame-clamp style with box terminals accommodating single-stranded cable from 95mm² to 300mm² and copper busbar sizes up to 40mm x 10 mm.

It provides optical signalling combined with light fuse monitoring and sliding windows that enable Visual fault detection while installed.

It is designed for plate or DIN-rail mounting and may be positioned vertically or horisontally.

The device is suitable for ambient operation from −25 °C to +55 °C, can withstand up to +70 °C maximum operating temperature in specific conditions, and offers a mechanical life of 800 operations.