MK Sentry Y5686SMET Amendment 3 All Metal 10 Way Twin RCD Flexible Consumer Unit With 100A Switch Disconnector Isolator, 1 x 63A 30mA & 1 x 80A 30mA RCDs
Y5686SMET
MK Sentry Y5686SMET All Metal 10 Way Twin RCD Consumer Unit – 100A Main Switch, 63A & 80A 30mA RCDs, Amendment 3 Compliant
The MK Sentry Y5686SMET is a 10-way all-metal twin RCD consumer unit designed for modern residential and light commercial installations. Fully compliant with Amendment 3 of BS 7671:2008, it includes a 100A main switch disconnector, one 63A 30mA RCD, and one 80A 30mA RCD. Its flexible configuration allows any split of protected circuits up to 9/1 or 1/9, offering full RCD protection with advanced safety and installation features.
- Split Load Design: Twin RCD layout allows for circuit grouping across two RCDs for enhanced safety and functionality.
- Comprehensive Protection: Supplied with 1 x 100A main switch, 1 x 63A 30mA RCD, and 1 x 80A 30mA RCD for full-board isolation and earth leakage protection.
- Amendment 3 Compliant: All-metal Zintec steel enclosure with non-combustible properties meets the fire safety requirements of BS 7671:2008 Amendment 3.
- Flexible Configuration: Accommodates up to 10 outgoing ways with nearly unlimited layout combinations for RCBOs or MCBs.
- Installer-Focused Features: Includes curved design, multiple large knockouts, floating busbar, removable DIN rail, offset incomer, and backed-out captive screws for fast, tidy installation.
Technical Specification
- Main Switch: 100A Double Pole
- RCDs: 1 x 63A 30mA, 1 x 80A 30mA
- Max Devices: 10 MCBs or RCBOs
- Material: Zintec Steel (Amendment 3 Compliant)
- Dimensions: H: 244mm x W: 382mm x D: 116mm
- Enclosure Features: Top-hinged door, colour-coded terminals, floating busbar system, and “T” bar support rail
- Standards Compliance: BS 7671:2008 Amendment 3, BS EN 61439-3
✅ Choose the MK Sentry Y5686SMET for a reliable, regulation-compliant consumer unit that delivers flexible circuit protection in stylish and space-conscious installations!

Rcd 2 Rating | 63 A |
Range | Circpro MK Sentry |
Sensitivity | 30 mA |
Product | Consumer Unit w/ Main Switch + RCD |
Type | 17th Edition |
Voltage | 230|240 V |
Mounting | Surface |
Current Rating | 100A |
Standards | BS 7671 |
Rcd Rating | 80 A |
Rcd Sensitivity | 30 mA |
Rcd 2 Sensitivity | 30 mA |
Body Material | Steel |
Outgoing Ways | 16 Way |
Incomer Included | Y |
Incomer Type | Switch Disconnector/RCD |
Incomer Current Rating | 100 A |
Split Load | Y |
Rcd S Included | Y |
Number Of Rcd S | 2 |
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.