Eaton 30A British Standard Fuse 80 mm x 18 mm x 18 mm 660 V ac, 400V dc, 61.8 mm

This British Standard fuse is a high‑speed cartridge designed to protect electrical circuits in industrial and automation environments. It operates as an aR‑type protective element for controlled short‑circuit clearing and is suitable where fast disconnection of fault currents is required. The unit is rated for 30 A and supports AC and DC systems, making it applicable across a range of industrial installations.

• High‑speed operation enabling Rapid fault interruption • High rupture capacity for safe clearing of severe faults • Rated for both 660V AC and 400V DC to suit mixed systems • Offset tag with 12mm width for secure electrical connections • Compact 80 x 18mm form factor for straightforward mounting • Fixing centres 61.8mm to match standard holder spacings

• Suitable for overcurrent protection in automation control panels • Ideal for protection of power distribution feeders in factories • Used for safeguarding DC supply circuits in drive systems • Can be used with cartridge fuse holders in electrical cubicles and cabinets

It is designed for short‑circuit and high‑energy fault clearing where Rapid disconnection is necessary, classified as aR for controlled arcing during interruption.

The fuse includes offset tags measuring 12mm wide, compatible with standard connector lugs and cartridge holders that accept offset terminations.

With ratings up to 660V AC and 400V DC it can be deployed across both AC supply lines and DC circuits, reducing the need for multiple fuse types.

The cartridge measures 80 x 18mm overall length and width and uses 61.8mm fixing centres to align with common panel and holder layouts.

In the table below, I²t is the pre-arcing Value; I²t Total is the clearing Value at 240Vac