Checking hours…Mon–Fri 7:30am–5pm · Sat 9am–12pm01302 279234Trade account
Lewden E10-1B50 SP Type B 50A 10kA MCB

Electrical Range

Lewden E10-1B50 SP Type B 50A 10kA MCB

Single-pole Type B miniature circuit breaker rated at 50 A with a 10 kA short-circuit breaking capacity.

At a glance

  • Also known as 8011865
Manufacturer part no.
E10-1B50
Showing prices

£9.20

£7.67 ex. VAT · VAT at 20%

Available to order · 1 working day
Available to order · 1 working day
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 Lewden E10-1B50 is a single-pole (SP) miniature circuit breaker (MCB) with a Type B trip characteristic, rated at 50 A and a 10 kA short-circuit breaking capacity. It is used to protect a single pole of a distribution board circuit against overload and short-circuit currents.

Before you order

  • Confirm the circuit requires a 50 A rated current device and that a Type B trip characteristic suits the load and cable protection requirements.
  • Check that the prospective short-circuit current at the point of installation does not exceed the 10 kA breaking capacity of the MCB.
  • Verify the distribution board or enclosure accepts a single-pole (SP) MCB and that the busbar and terminal arrangement is compatible.
  • Match the part number E10-1B50 against the existing device or circuit schedule before ordering.

Not sure which part?

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