Specifications:
- 20 Usable Ways – Ideal for larger domestic or light commercial installations requiring extensive circuit separation
- Duplex High Integrity Design – Accommodates both RCD and non-RCD protected circuits for greater installation flexibility
- 100A Main Switch & 2 x 80A 30mA RCDs – Dual residual current devices provide reliable, split-load protection
- Amendment 3 Compliant Steel Enclosure – Robust metal housing ensures fire resistance and meets latest IET wiring regulations
- Optimised for Circuit Segregation – Perfect for critical systems like smoke alarms, freezers, or security that require independent RCBO protection
- Generous Wiring Space – Wide and deep internal layout simplifies installation and improves airflow
- Multiple Cable Entry Points – Pre-punched knockouts support a range of cable routing options
- Fully Equipped – Supplied with fitted busbars, neutral bars, DIN rail, cable clamps, and circuit identification labels
- Certified to EN61439-3 – Quality-assured performance and safety in residential and commercial applications
- Manufacturer Backed – 10-year warranty ensures long-term reliability from a trusted UK electrical brand
Wylex NMDRS20SSLHIA 20 Way High Integrity Duplex Consumer Unit – 100A Main, 2x 80A RCDs
Ultimate Circuit Control for Larger Installations
The Wylex NMDRS20SSLHIA 20 Way High Integrity Duplex Consumer Unit is engineered for demanding domestic and light commercial electrical systems. With 20 usable ways, a 100A main switch, and dual 80A 30mA Type A RCDs, this consumer unit is designed to safely manage complex circuit layouts while maintaining compliance and performance. Its duplex layout provides clear separation of essential and non-essential circuits—ideal for powering everything from lighting and kitchen appliances to EV chargers and office equipment.
High Integrity Layout for Safer, Smarter Wiring
This 20 way high integrity fuse board allows you to assign critical circuits to RCBOs for uninterrupted power, while non-essential loads are split across the two RCD banks. This level of flexibility is essential for modern installations requiring selective disconnection during faults. Whether you're future-proofing a home or meeting the requirements of the latest wiring regulations, the NMDRS20SSLHIA offers the ideal layout for safe, smart power distribution.
Built for Compliance and Fast Installation
Featuring a durable metal-clad enclosure that complies with Amendment 3 and BS EN 61439-3, this board ensures full regulatory compliance. The NMDRS20SSLHIA also offers plenty of space for tidy cable routing, with labelled terminals and pre-formed knockouts for faster, neater installations. Trusted by electrical professionals across the UK, Wylex continues to lead in innovation, safety, and ease of installation.