



MK Sentry Y5704SMET Amendment 3 All Metal 4 Way Consumer Unit With Switch Disconnector Isolator 100A
Y5704SMET
MK Sentry Y5704SMET All Metal 4 Way Consumer Unit – 100A Main Switch, Amendment 3 Compliant
The MK Sentry Y5704SMET is a compact, 4-way all-metal consumer unit ideal for smaller installations where safety, simplicity, and compliance are essential. Supplied with a 100A double pole main switch, this unit supports up to 2 outgoing circuits via RCBOs or MCBs and is fully compliant with Amendment 3 of BS 7671:2008. Its robust, Zintec steel construction and installer-friendly features make it a reliable choice for residential or light commercial applications.
- Compact & Compliant: A 4-way consumer unit designed for installations requiring Amendment 3 compliance in a small footprint.
- 100A Double Pole Isolator: Provides total board control and isolation, reducing the risk of nuisance tripping across circuits.
- Supports Additional Devices: Accommodates 2 x RCBOs or MCBs, ideal for applications needing focused protection.
- Full Metal Construction: Manufactured from corrosion-resistant Zintec steel with floating busbar and full metal DIN rail.
- Smart Design Features: Offset incomer, top-hinged door, removable DIN rail, large knockouts, and colour-coded terminals ensure simple, fast, and flexible installation.
Technical Specification
- Main Switch: 100A Double Pole
- Max Circuits: 2 MCBs or RCBOs
- Material: Zintec Steel (Non-combustible)
- Dimensions: H: 244mm x W: 144mm x D: 116mm (including cover)
- Ingress Protection: IP2XC
- Standards Compliance: BS 7671:2008 Amendment 3, BS EN 61439-3
✅ Choose the MK Sentry Y5704SMET for safe, compact, and stylish power distribution in small-scale Amendment 3-compliant installations!

Range | Circpro MK Sentry |
Product | Consumer Unit w/ Main Switch |
Voltage | 230|240 V |
Mounting | Surface |
Current Rating | 100A |
Body Colour | White |
Body Material | Metalclad |
Body Material | Steel |
Outgoing Ways | 4 Way |
Incomer Included | Y |
Incomer Type | Switch Disconnector |
Incomer Current Rating | 100 A |
Rcd S Included | N |
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.
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