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Wylex Mini RCBO 40A 30Ma Type A

4.4 (8 reviews)
SKU: 240302142455009 EAN: 5013601083193

Compare 2 prices for Wylex Mini RCBO 40A 30Ma Type A — from £16.20 to £21.60 across 2 UK sellers including Electricals Online, I T S. Save up to £5.40 (25%).

£16.20 51h ago
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Compare Prices from 2 Sellers

Prices updated 12 Apr 2026
2
I T S
£21.60 +£5.40
21h
#2 I T S
21h ago
£21.60 +£5.40
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The Wylex Mini RCBO is a high-performance circuit breaker designed to fit into standard consumer units while occupying the same space as a traditional MCB. It provides comprehensive protection against overcurrent and earth leakage, specifically designed to handle AC and pulsating DC components. This single-module device features double-pole switching for increased safety during maintenance and installation.
Amperage 40A
Brand Wylex
Break Time Instantaneous
Breaking Capacity 6kA
Colour White
Control Style Switch
Country/Region of Manufacture United Kingdom
Current Rating 31-40 A
Current Type AC
IP Rating IP20
Material ABS/Plastic
Maximum Amperage 40 A
Model NHXS1B40
Mounting DIN Rail
Mounting Style DIN Rail
MPN NHXS1B40
Number in Pack 1
Number of Outlets 1
Number of Phases 1
Number of Poles 1
Number of Positions 2
Operation Method On/Off
RCD Type Type A
Suitable For Wall, Interior
Terminal Capacity 16mm²
Tripping Characteristics Type B
Tripping Curve B Curve
Tripping Sensitivity 30mA
Type RCBO
Unit Quantity 1
Unit Type Unit
Voltage 201-250 V
Voltage Rating 230V
Compact mini size matching standard MCB dimensions
Type A sensitivity for AC and pulsating DC fault protection
Double pole switching for total isolation of live and neutral
Single module width (18mm) to maximize consumer unit space
B Curve tripping characteristic for standard domestic circuits
Easy-to-use toggle switch and integrated test button
Fully compliant with IEC 61009-1 safety standards
1 x Wylex Mini RCBO 40A 30mA Type A
Instruction Leaflet

Customer Reviews 8

4.4
8 reviews
5 star
6
4 star
1
3 star
0
2 star
0
1 star
1
great quality product as always from wylex
5.0
November 6, 2025
willsy1845 Verified Purchase

decent priced rcbo, wylex always great quality simple to fit

Better functionality.
5.0
October 2, 2025
inadee Verified Purchase

Replaced MCB for solar system to overcome loss of power to other circuits, and provide earth leakage and overload protection for solar.

Wylex quality as usual.
5.0
September 10, 2025
9ad691a5-0f09-5012-9afe-92bb619a4476 Verified Purchase

Good quality RCBO, screw terminals are a decent size for tightening and the cable clamps are well made. My go to brand for board changes.

Not compatible with older Consumer Units
5.0
June 9, 2024
Djc123 Verified Purchase

Good product. Same size as an MCB.
However it isn't compatible with the older Wylex MCBs and consumer units which use a different bus-bar. It only fits onto the pronged bus bars and not the slotted ones.

You stopped me tripping over a trip
5.0
May 4, 2023
6zt3u5rmvhxan53invqhiy9uj Verified Purchase

Found it easy on the site. Did not have in stock at local branch but was dispatched and received quickly
Thankyou. Having cancer we needed the shower up and running again as we did not realise when we upgraded the trip was not big enough.

1.0
December 16, 2022
701h47rswcq0fgfuixok2ghv3 Verified Purchase
Wylex 32amp RCBO type A
4.0
September 27, 2021
Dicky243 Verified Purchase

Rather expensive compare to other RCBO's but the only one of its type available for an EV commando socket. The first one supplied failed the electricians tripping current test Toolstation replaced it without a quibble and that was OK.

A type RCBO
5.0
May 18, 2020
Electropro

This is a combined circuit breaker and RCD. The A type in the description relates to the type of RCD not the type of circuit breaker.
The description is not wrong as stated by previous reviewer, proving that electrical work should be left to qualified professionals not amateur DIYers

1 found this helpful
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