
MK Sentry Y7673SMET Amendment 3 All Metal 12 Way Pre-Populated Consumer Unit With 100A Isolator + 2x6A, 1x16A, 2x32A & 1X40A RCBOs
Y7673SMET
MK Sentry Y7673SMET All Metal 12 Way Consumer Unit – Pre-Populated with 100A Main Switch & 6 RCBOs, Amendment 3 Compliant
The MK Sentry Y7673SMET is a fully pre-populated 12-way all-metal consumer unit designed to meet the safety standards of Amendment 3 to BS 7671:2008. Supplied with a 100A double pole main isolator and 6 RCBOs (2 x 6A, 1 x 16A, 2 x 32A, 1 x 40A), it offers complete protection with total circuit isolation. With space to accommodate up to 12 MCBs or RCBOs, this unit is ideal for installations that require flexibility, compliance, and ease of use.
- Pre-Fitted RCBOs: Supplied with 6 Type A RCBOs (2 x 6A, 1 x 16A, 2 x 32A, 1 x 40A) for individual circuit protection and reduced nuisance tripping.
- 100A Main Switch: Double pole isolator provides full-board control and disconnection for maintenance or emergencies.
- Expandable Configuration: Accepts up to 12 RCBOs or MCBs—6 of which are pre-installed, with space for 6 additional or 4 modular DIN accessories.
- Fully Amendment 3 Compliant: Constructed from fire-resistant Zintec steel with floating busbar and secure, modern MK white finish.
- Installation Friendly: Features a top-hinged door, offset incomer, removable DIN rail, large knockouts, and colour-coded terminals to make fitting quick and tidy.
Supplied Components
- Main Switch: 1 x 100A Double Pole Isolator
- RCBOs: 2 x 6A, 1 x 16A, 2 x 32A, 1 x 40A
- Useable Ways: 12 (6 pre-installed, 6 available or can fit 4 DIN modules)
Technical Specification
- Material: Zintec Steel (non-combustible)
- Dimensions: H: 244mm x W: 310mm x D: 116mm (including cover)
- Ingress Protection: IP2XC
- Compliance: BS 7671:2008 Amendment 3, BS EN 61439-3
✅ Choose the MK Sentry Y7673SMET for a compliant, compact, and ready-to-use consumer unit with premium safety and flexibility built in!

Range | Circpro MK Sentry |
Product | Consumer Unit - Pre Populated |
Type | 17th Edition |
Voltage | 230|240 V |
Mounting | Surface |
Current Rating | 100A |
Standards | BS 7671 |
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)
- 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.