Eaton 400mA F Glass Cartridge Fuse, 5 x 20 mm

This cartridge fuse is a fast-acting protective element designed to interrupt overcurrent conditions in low-voltage circuits. Suited to control and protection roles in industrial and electronic equipment, it operates across typical AC supply environments and is constructed for insertion into standard fuse holders. The glass-bodied design permits Visual inspection of the fuse element while withstanding a wide operating temperature range.

• Fast-response F-speed characteristic reduces fault energy transfer
• Rated at 400 mA for precise protection of sensitive circuits
• 250V AC capability supports standard mains and control voltages
• Glass body enables quick Visual verification of continuity
• Operates between −40 °C and +125 °C for demanding environments

• Suitable for protecting sensors and control electronics in automation panels
• Ideal for use in industrial power supplies and distribution modules
• Used with test equipment and instrumentation requiring fast interruption
• Can be used for protecting small motors and drives from short circuits

It is supplied in the 5 x 20mm cartridge format with a 5mm diameter body and 20mm overall length, compatible with widely used cartridge fuse clips and holders.

The fuse maintains its operating characteristics up to +125 °C, allowing continued overcurrent protection in high-temperature installations.

It carries multiple safety approvals from recognised bodies including BSI and VDE among others, signifying compliance with established test criteria.

Yes, the fast-acting profile is intended to clear transient and fault currents rapidly, minimising damage to downstream components.

Eaton formerly known as Bussmann