Why Choose the ABB EPH-S11112 Protecta Home 12-Way Consumer Unit?
The ABB EPH-S11112 is a robust and reliable 12-way, 100 A RCCB incomer consumer unit designed for organised electrical distribution and residual current protection in domestic and residential installations. Featuring a factory-fitted 100 A residual current circuit breaker (RCCB), this consumer unit provides a central point for distributing electricity to multiple outgoing circuits while incorporating earth leakage protection. As part of the established ABB Protecta Home consumer unit series, it offers electricians and electrical contractors a practical solution for residential electrical installations requiring an RCCB-controlled distribution arrangement.
The EPH-S11112 features a single RCCB incomer configuration, allowing compatible outgoing circuit protection devices to be installed downstream of the factory-fitted RCCB. This arrangement provides common residual current protection for the connected circuit group, while individual outgoing miniature circuit breakers (MCBs) can provide overload and short-circuit protection. The RCCB also provides a means of switching and isolating its downstream circuits, subject to appropriate safe isolation procedures.
With 12 outgoing ways and a 100 A rated RCCB incomer, the EPH-S11112 is suitable for residential distribution applications requiring multiple electrical circuits. Its durable RAL 7035 grey steel enclosure provides robust housing for electrical distribution components, while its compact 250 × 330 × 105 mm (H × W × D) nominal dimensions support practical wall-mounted installation. The unit is supplied with a shrouded busbar, earth and neutral bars and installation instructions to assist with installation and circuit organisation.
Key Advantages
- Reliable 12-way consumer unit designed for domestic electrical distribution.
- 100 A RCCB incomer provides residual current protection for connected outgoing circuits.
- Factory-fitted RCCB reduces the need to select and install a separate incoming residual current protective device.
- 12 outgoing ways accommodate multiple compatible modular circuit protection devices.
- Single RCCB-controlled configuration provides a straightforward arrangement for electrical distribution.
- Robust steel enclosure offers durable housing for electrical components.
- Supplied with a shrouded busbar, earth bar and neutral bar for organised circuit connections.
- Designed for integration with suitable ABB modular circuit protection devices.
- Wall-mounted enclosure provides convenient installation in residential electrical distribution locations.
- Compact 12-way design balances circuit capacity with available installation space.
- Part of the established ABB Protecta Home range for residential electrical distribution.
Key Features
- ABB Protecta Home consumer unit series.
- 12 outgoing ways for electrical circuit distribution.
- 100 A rated RCCB incomer for residual current protection.
- Factory-fitted residual current circuit breaker for the outgoing circuit group.
- Single RCCB incomer arrangement rather than a multiple-RCCB split-load configuration.
- Steel enclosure construction designed for fixed electrical installations.
- RAL 7035 grey enclosure finish for a professional electrical distribution installation.
- BS EN 61439-3 assembly standard for distribution boards intended for operation by ordinary persons.
- Shrouded busbar supplied for connection of compatible outgoing protective devices.
- Includes earth and neutral bars for electrical circuit connections.
- Designed to accommodate suitable ABB modular circuit protection equipment.
- Wall-mounted format for domestic and residential electrical distribution.
- 250 × 330 × 105 mm nominal dimensions for installation planning.
- Suitable for new installations, electrical refurbishment projects and distribution board replacements.
Reliable Residual Current Protection for Domestic Electrical Distribution
RCCB consumer units such as the ABB EPH-S11112 Protecta Home provide a central distribution point for electrical circuits while incorporating residual current protection. The factory-fitted 100 A RCCB monitors the balance of current flowing through the live and neutral conductors. If an earth leakage imbalance exceeds the device's specified operating threshold, the RCCB disconnects the associated circuits to help reduce the risk of electric shock and other electrical hazards.
The single RCCB incomer arrangement allows multiple outgoing circuits to share a common residual current protective device. This provides a straightforward distribution configuration, particularly where a shared RCCB arrangement is appropriate for the installation design. However, because the outgoing circuits are connected through the same RCCB, an earth leakage fault on one circuit can disconnect all circuits supplied through that device. Circuit division and continuity of supply requirements must therefore be considered when designing the installation.
The ABB Protecta Home series combines durable steel enclosures with practical circuit connection features for residential electrical distribution. The EPH-S11112 is supplied with a factory-fitted RCCB, shrouded busbar and earth and neutral bars, supporting organised installation of compatible outgoing protective devices. The RCCB provides residual current protection but does not itself provide overload or short-circuit protection. Appropriately rated overcurrent protective devices are therefore required, and the installation must be designed and completed by a competent electrician in accordance with applicable electrical regulations, including BS 7671.
Typical Applications
- Domestic electrical distribution in houses and residential properties.
- Residential installations requiring a 12-way RCCB consumer unit.
- Electrical distribution for lighting and socket outlet circuits.
- Property refurbishment and residential electrical rewiring projects.
- Consumer unit replacement and electrical distribution upgrades.
- Domestic utility areas and household appliance circuits.
- Residential installations requiring common residual current protection for a group of circuits.
- Small fixed electrical distribution systems with suitably designed circuit protection.
- Electrical installations using compatible ABB modular outgoing protective devices.
- Wall-mounted electrical distribution applications requiring a 100 A RCCB incomer.
