
MK Sentry YS5712SMET Amendment 3 All Metal 12 Way Consumer Unit With Switch Disconnector Isolator 100A & SPD
YS5712SMET
MK Sentry YS5712SMET All Metal 12 Way Consumer Unit – 100A Main Switch, Type 2 SPD, Amendment 3 Compliant
The MK Sentry YS5712SMET is a 12-way all-metal consumer unit, designed for total circuit isolation and protection with the added benefit of integrated surge protection. Fully compliant with Amendment 3 to BS 7671:2008, this unit includes a 100A double pole switch disconnector and a factory-fitted Type 2 Surge Protection Device (SPD). It supports up to 8 RCBOs or MCBs and is ideal for residential or light commercial installations where additional protection from overvoltage and flexible distribution are required.
- Pre-Fitted Surge Protection: Supplied with an integrated Type 2 SPD to safeguard equipment from transient overvoltages caused by lightning or switching events.
- 100A Double Pole Main Switch: Offers full isolation of all connected circuits for enhanced safety and control.
- Expandable Configuration: Supports up to 8 outgoing circuits using RCBOs or MCBs with a full-width DIN rail for added modular flexibility.
- Amendment 3 Compliant: Constructed from non-combustible Zintec steel with modern white powder-coated finish, meeting the latest wiring safety standards.
- Installer-Friendly Design: Top-hinged door, floating busbar, offset incomer, colour-coded terminals, and large knockouts ensure efficient, tidy installations.
Supplied Components
- Main Switch: 1 x 100A Double Pole Switch Disconnector
- Surge Protection: 1 x Type 2 SPD (factory fitted)
- Module Capacity: 12 ways total (8 useable for circuit devices)
Technical Specification
- Material: Zintec Steel (non-combustible)
- Dimensions: H: 244mm x W: 310mm x D: 116mm
- Ingress Protection: IP2XC (BS EN 60529)
- Standards Compliance: BS 7671:2008 (Amendment 3), BS EN 61439-3
✅ Choose the MK Sentry YS5712SMET for a regulation-ready consumer unit with surge protection, excellent flexibility, and a safe, professional finish for any modern installation!

Surge Protection Included | Y |
Range | Circpro MK Sentry |
Product | Consumer Unit w/ Main Switch + SPD |
Voltage | 230|240 V |
Mounting | Surface |
Current Rating | 100A |
Body Colour | White |
Body Material | Metalclad |
Body Material | Steel |
Outgoing Ways | 12 Way |
Incomer Included | Y |
Incomer Type | Switch Disconnector |
Incomer Current Rating | 100 A |
Rcd S Included | N |
Delivery Options:
- PRIORITY DELIVERY – Next Working Day (All items in stock and ordered before 3 pm) - £7.08 inc-VAT. (£5.90 ex-VAT)
- STANDARD DELIVERY – 2–3 Working Days From Despatch (subject to stock availability) - £4.99 inc-VAT. (£4.16 ex-VAT)
- Orders Over £100 (before VAT): We offer free standard shipping on all orders shipped to UK mainland addresses
- Orders under £100 (before VAT): Our standard delivery fee to UK mainland addresses is £5.90 ex-VAT (£7.08 inc-VAT)
*Delivery charges to JE, GY, TR, BT, IM, IV, HS, KW, ZE and certain PA post codes are £12 ex-VAT for all orders (Prices subject to change).
Items requiring specialist shipping:
- Orders containing Solar Panels, Batteries and/or Inverters: Up to 50 qty will be dispatched on a pallet and incur a £120 ex-VAT delivery charge**.
**Delivery charges to JE, GY, TR, BT, IM, IV, HS, KW, ZE and certain PA post codes are £180 ex-VAT (Prices subject to change).
Contact us if you have any further questions.