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Lewden RCBO Type B 20A 30mA 10kA RCBO10-20/30/1M/B

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Lewden RCBO Type B 20A 30mA 10kA RCBO10-20/30/1M/B

Single-pole Lewden RCBO combining 20A Type B overcurrent protection with 30mA residual current protection and a 10kA breaking capacity.

At a glance

  • Also known as 8011942
Manufacturer part no.
RCBO10-20/30/1M/B
Showing prices

£51.78

£43.15 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 RCBO10-20/30/1M/B is a single-pole residual current breaker with overcurrent protection, combining a 20A Type B overcurrent device with 30mA residual current protection in one unit. It carries a 10kA short-circuit breaking capacity and occupies a 1M module width. It is used for final circuit protection where both earth leakage and overcurrent disconnection are required from a single device.

Before you order

  • Confirm the circuit requires a 20A Type B device with 30mA residual current protection.
  • Check the available module width in the distribution board, as this device is 1M.
  • Verify that the 10kA breaking capacity is suitable for the prospective fault current at the point of installation.
  • Check the distribution board manufacturer's instructions for the device types and ratings accepted by that board.

Not sure which part?

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