nx3-16s chint 5 x 5 dual rcd consumer unit amendment 3

Why Choose the CHINT NX3-16S 5 × 5 Dual RCD Consumer Unit?

The CHINT NX3-16S is a robust 5 × 5 dual RCD metal consumer unit designed for safe and flexible electrical distribution in residential, commercial and similar installations. As part of the CHINT NX3 metal consumer unit series, it combines two 63 A, 30 mA RCDs with a 100 A double-pole main switch to provide a practical split-load distribution solution.

Designed around the requirements of Amendment 3 of BS 7671:2008, the NX3 range uses a steel enclosure and is manufactured in accordance with BS EN 61439-3 requirements for household and similar distribution boards. The NX3-16S is also high-integrity ready, giving installers additional flexibility when configuring circuits and compatible protective devices.

The 5 × 5 configuration provides two groups of five outgoing ways protected by separate 63 A, 30 mA RCDs. A 100 A double-pole main switch provides incoming isolation, making the NX3-16S a convenient foundation for configuring multiple final circuits in domestic and light commercial electrical installations.

Key Advantages

• Practical 5 × 5 dual RCD consumer unit configuration.
• Supplied with 2 × 63 A, 30 mA RCDs.
• Includes a 100 A double-pole main switch.
• High-integrity ready design provides additional configuration flexibility.
• Robust steel enclosure for electrical distribution applications.
• Designed to accommodate compatible MCBs and RCBOs.
• Multiple cable knockouts help simplify installation and wiring.

Key Features

• CHINT NX3 metal consumer unit series.
• 5 × 5 dual RCD configuration.
• 10 outgoing circuit ways across two RCD-protected sections.
• 2 × 63 A, 30 mA RCDs.
• 1 × 100 A double-pole main switch.
• High-integrity ready configuration.
• Steel enclosure with lift-up lid.
• Multiple knockout sizes for convenient cable entry.
• Designed to accommodate compatible RCBOs.
• DIN rail arrangement for modular circuit-protection devices.
• Off-white enclosure finish.

Dual RCD Protection for Electrical Distribution

Dual RCD consumer units such as the CHINT NX3-16S divide outgoing circuits between two residual-current devices. This configuration allows groups of final circuits to receive 30 mA residual-current protection while avoiding reliance on a single RCD for every protected circuit in the distribution board.

The NX3-16S combines dual RCD protection with a 100 A main switch and a high-integrity-ready layout. Its steel enclosure, DIN rail arrangement and generous internal space make it a practical choice for electricians configuring residential and light commercial distribution systems with compatible CHINT circuit-protection devices.

Typical Applications

• Domestic electrical distribution systems.
• Houses, flats and residential properties.
• Electrical installation upgrades.
• Lighting and socket circuit distribution.
• Heating and fixed appliance circuits.
• Small commercial premises.
• Light industrial electrical distribution applications.