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Worcester Bosch MCB S203-K25 SP 8738650821

Worcester Bosch

Worcester Bosch MCB S203-K25 SP 8738650821

Worcester Bosch miniature circuit breaker, designation S203-K25 SP, part number 8738650821.

At a glance

  • Also known as 2249469
Manufacturer part no.
8738650821
Showing prices

£249.74

£208.12 ex. VAT · VAT at 20%

Available to order · 7 working days
Available to order · 7 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 Worcester 8738650821 MCB S203-K25 SP is a miniature circuit breaker (MCB) from Worcester Bosch. It carries the manufacturer part number 8738650821 and the designation S203-K25 SP. As an MCB, its function is to provide overcurrent and short-circuit protection within an electrical circuit.

Before you order

  • Confirm the part number 8738650821 matches the component being replaced.
  • Check the MCB designation S203-K25 SP against the existing unit or specification.
  • Verify that a Worcester Bosch MCB is the correct type for the intended circuit.

Not sure which part?

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