MK Sentry YS7666SMET-A Amendment 3 All Metal 16 Way (8 Useable Ways) Pre-Populated 63A Twin Type A RCD Flexible Consumer Unit With Surge Protection Device and 2x6A, 2x16A, 3x32A & 1x40A MCBs

MK Sentry YS7666SMET-A All Metal 16 Way Twin RCD Consumer Unit – Pre-Populated, 100A Main Switch, SPD, 2 x 63A Type A RCDs, Amendment 3 Compliant

The MK Sentry YS7666SMET-A is a fully pre-populated 16-way all-metal twin RCD consumer unit with integrated surge protection. Designed for compliance with Amendment 3 to BS 7671:2008, it features a 100A main switch, two 63A 30mA Type A RCDs, a Surge Protection Device (SPD), and 8 MCBs (2 x 6A, 2 x 16A, 3 x 32A, 1 x 40A). With 8 useable ways and a flexible internal layout, this board is ideal for safe, regulation-ready residential or commercial installations.

• Complete Protection Out of the Box: Supplied with main switch, dual RCDs, SPD, and 8 MCBs for hassle-free installation and immediate 18th Edition compliance.
• Dual 63A Type A RCDs: Ensures fault protection across two separately grouped circuit zones, improving load distribution and fault management.
• Surge Protection Included: Pre-installed SPD guards against transient overvoltages caused by lightning or switching events—essential for safeguarding sensitive electronics.
• Amendment 3 Compliant: Constructed from non-combustible Zintec steel with floating busbar, offset incomer, and backed-out captive screws for safety and convenience.
• Installer-Friendly Layout: Supplied with full metal DIN rail, clear circuit labels, colour-coded earth and neutral bars, and extra-large knockouts for a quick, clean installation.

Supplied Components

• Main Switch: 1 x 100A Double Pole Isolator
• RCDs: 2 x 63A 30mA Type A
• MCBs: 2 x 6A, 2 x 16A, 3 x 32A, 1 x 40A
• Surge Protection: 1 x SPD module
• Useable Ways: 8 of 16 module spaces populated

Technical Specification

• Material: Zintec Steel (non-combustible)
• Dimensions: H: 244mm x W: 382mm x D: 116mm
• Ingress Protection: IP2XC (to BS EN 60529)
• Compliance: BS EN 61439-3, BS 7671:2008 Amendment 3

✅ Choose the MK Sentry YS7666SMET-A for a fully protected, flexible, and compliant consumer unit that includes dual RCDs and surge protection as standard—perfect for today’s sensitive electrical environments!