Checking hours…Mon–Fri 7:30am–5pm · Sat 9am–12pm01302 279234Trade account
Potterton 5mm x 20mm Fuse COM15803525

Potterton

Potterton 5mm x 20mm Fuse COM15803525

A 5mm x 20mm 6.3A fuse supplied by Potterton for compatible Potterton Commercial NXR2, NXR3 and NXR4 boilers.

Manufacturer part no.
COM15803525
Showing prices

£25.57

£21.31 ex. VAT · VAT at 20%

Available to order · 3 working days
Available to order · 3 working days
Not certain it's the right part? The technical team verifies fitment before dispatch — no charge, and it stops a second trip.Call the technical teamSend a technical question

Same-day dispatch

Ordered by 4pm Mon–Fri, 10:30am Sat.

30-day returns

Unused, in original packaging.

What it is

The Potterton 5mm x 20mm fuse is a 6.3A cartridge fuse for Potterton Commercial NXR series boilers. It is listed by the manufacturer as FUSE TFS 5 X 20 6.3A and carries the part number COM15803525. The fuse protects the boiler's electrical circuit and is common to a wide spread of models across the NXR2, NXR3 and NXR4 ranges.

Before you order

  • Check the appliance model against the fit list, including the section count on NXR3 and NXR4 units.
  • Confirm the existing fuse rating and physical size against the 5mm x 20mm, 6.3A specification.
  • Check the part number on the appliance or in the manual against COM15803525 and 15803525 before ordering.

Not sure which part?

Search by part number, product name or brand — our technical team confirms fitment before anything is dispatched.