Upgrade your ventilation with Vent-Axia Pozidry. Best prices online. Order Today


There are no items in your basket
TOTAL £0.00 £0.00
Prices are including vat Prices are excluding vat VIEW CART
BROWSE

REQUEST A QUOTE

Request a Quote

If you need help pricing up your next large project we would love to help! Or maybe you are looking for items not already on our site?, we can source most well-known electrical wholesale brands at competitive prices Please complete the details below and we will respond ASAP

MK Sentry Y5721SMET Amendment 3 All Metal 19 Way Consumer Unit With Switch Disconnector Isolator 100A

Y5721SMET

3 in stock for 2-3 day delivery see more info
£39.94 inc Vat
£33.28 ex Vat
Free delivery for orders over £100 ex VAT

MK Sentry Y5721SMET All Metal 19 Way Consumer Unit – 100A Main Switch, Amendment 3 Compliant

The MK Sentry Y5721SMET is a robust and spacious 19-way all-metal consumer unit, designed to meet the requirements of Amendment 3 to BS 7671:2008. Supplied with a 100A double pole main isolator, it supports up to 21 outgoing MCBs or RCBOs, offering comprehensive circuit separation, flexibility, and full board isolation. This unit is perfect for larger residential and light commercial installations requiring modern safety standards and installer-friendly features.

  • High-Capacity Configuration: Supports up to 21 MCBs or RCBOs, providing ample circuit protection for larger properties or projects.
  • 100A Main Isolator: Double pole switch disconnector enables full board isolation for maintenance and safety compliance.
  • Amendment 3 Compliant: Full metal Zintec steel construction meets non-combustibility requirements of BS 7671:2008 Amendment 3.
  • Complete with Accessories: Includes full metal DIN rail, earth and neutral terminals, and clearly labelled circuit ID strips for simple commissioning and future servicing.
  • Optimised for Installation: Features offset incomer, top-hinged door, large knockouts, floating busbar, and removable DIN rail for ease of wiring and configuration.
Technical Specification
  • Main Switch: 100A Double Pole
  • Max Circuits: 21 MCBs or RCBOs
  • Material: Zintec Steel (Non-combustible)
  • Dimensions: H: 244mm x W: 472mm x D: 116mm (including cover)
  • Standards Compliance: BS 7671:2008 Amendment 3, BS EN 61439-3

Choose the MK Sentry Y5721SMET for large-scale, fully compliant installations that demand flexibility, safety, and modern aesthetics—all in one robust solution!

Description

 

Technical Information
Range Circpro MK Sentry
Product Consumer Unit w/ Main Switch
Voltage 230|240 V
Current Rating 100A
Body Material Steel
Outgoing Ways 19 Way
Incomer Included Y
Incomer Type Switch Disconnector
Incomer Current Rating 100 A
Rcd S Included N
Delivery

Delivery Costs

Our standard delivery charge to UK mainland addresses is £5.90 ex-VAT.

Take advantage of FREE* Delivery when you spend over £100 (per order) ex-VAT.

*Delivery charges to JE, GY, TR, BT, IM, IV, HS, KW, ZE and certain PA post codes are £12.00 ex-VAT.

Solar Panels, Batteries and Inverters

Due to their size all solar panels, batteries and inverters orders up to 50 qty will be despatched on a pallet and incur a £120** ex-VAT delivery charge.

**£180 ex VAT to JE, GY, TR, BT, IM, IV, HS, KW, ZE and certain PA post codes.

Click here to find out more.

Reviews

You May Also Need