1TVC151800S3061 ABB EPH-S11218 Protecta Home 18-Way 100A Main Switch Dual 100A RCCB Split-Load Consumer Unit

Why Choose the ABB EPH-S11218 18-Way Protecta Home Split-Load Consumer Unit?

The ABB EPH-S11218 Protecta Home Consumer Unit (1TVC151800S3061) is a factory-configured, 18-way split-load distribution board featuring a 100 A main switch isolator and two 100 A residual current circuit breakers (RCCBs). Designed for professional residential electrical installations, it provides a coordinated solution for circuit distribution and residual current protection.

Part of the ABB Protecta Home range, the EPH-S11218 uses a durable steel enclosure finished in RAL 7035 light grey. Its adaptable split-load arrangement allows suitable outgoing circuits to be distributed between the two RCCB-protected sections according to the installation design.

ABB specifies nominal enclosure dimensions of 250 mm high, 490 mm wide and 105 mm deep. The unit is supplied with factory-fitted incoming switching and RCCB equipment, together with a shrouded busbar, neutral and earth bars, and installation instructions. It is designed as a consumer unit assembly to BS EN 61439-3.

Key Advantages

• Genuine ABB Protecta Home 18-way consumer unit.
• 100 A main switch isolator for incoming supply isolation.
• Two 100 A RCCBs for split-load residual current protection.
• Adaptable split-load arrangement for suitable outgoing circuits.
• Factory-fitted main switch and RCCB equipment.
• Durable steel enclosure for indoor electrical distribution applications.
• RAL 7035 light grey enclosure finish.
• Supplied with a shrouded busbar for the intended assembly.
• Neutral and earth bars included for organised conductor termination.
• Designed to BS EN 61439-3.
• Compact nominal dimensions of 250 x 490 x 105 mm.
• Suitable for professional consumer unit replacement and new installation projects.

Key Features

• Manufacturer: ABB.
• Model: EPH-S11218.
• ABB order code: 1TVC151800S3061.
• Product family: Protecta Home.
• Product type: Split-load consumer unit.
• Nominal capacity: 18 ways.
• Main switch: 100 A switch disconnector.
• RCCB configuration: 2 x 100 A RCCBs.
• Load arrangement: Adaptable split load.
• Enclosure material: Steel.
• Enclosure colour: RAL 7035.
• Nominal height: 250 mm.
• Nominal width: 490 mm.
• Nominal depth: 105 mm.
• Factory-fitted incoming devices: Main switch and RCCBs.
• Busbar: Shrouded busbar included.
• Neutral bar: Included.
• Earth bar: Included.
• Installation instructions: Included.
• Assembly standard: BS EN 61439-3.

Dual 100 A RCCB Split-Load Configuration

The ABB EPH-S11218 combines a 100 A incoming isolator with two factory-fitted 100 A RCCBs. This configuration enables outgoing circuits to be assigned to separate residual current protection groups, subject to the electrical design and ABB's installation requirements.

A split-load arrangement can provide a practical means of organising circuits across two RCCB sections. However, a fault causing one RCCB to trip may disconnect all circuits supplied through that RCCB. Appropriate circuit division is therefore important, particularly where loss of multiple circuits could create inconvenience or safety concerns.

The 100 A rating of each RCCB describes its rated current; it does not mean that the consumer unit provides 200 A of incoming supply capacity. The main switch, supply characteristics, conductors and protective arrangements must all be assessed as part of the completed installation.

Steel Enclosure with Factory-Fitted Distribution Components

The Protecta Home EPH-S11218 features a steel enclosure finished in RAL 7035, providing a durable housing for the intended electrical distribution equipment. Its nominal dimensions of 250 x 490 x 105 mm allow installers to assess the available mounting space before installation.

ABB supplies this consumer unit with the main switch and RCCBs already fitted, together with the shrouded busbar, neutral bars, earth bars and installation instructions. These factory-supplied components support a coordinated assembly and help reduce the need to source the main distribution hardware individually.

The unit should not be mistaken for a fully populated circuit protection board. Outgoing miniature circuit breakers and other circuit-specific devices must be selected according to the installation requirements and ABB's approved device compatibility information.

Professional Installation and Circuit Design

The ABB EPH-S11218 is intended for installation by a competent electrical professional. The completed distribution board must be designed and verified in accordance with applicable UK wiring regulations and the manufacturer's assembly instructions.

Each RCCB-protected circuit group must use the appropriate associated neutral connections. Neutral conductors from different RCCB groups must not be mixed, as incorrect neutral arrangements can cause unwanted tripping and compromise correct operation.

Installers should confirm the RCCB residual-current sensitivity and type, the required outgoing protective devices, circuit loading, supply characteristics and any additional protection required by the installation. The RCCBs provide residual current protection but do not replace the overcurrent protection required for individual outgoing circuits.

Typical Applications

• Residential electrical distribution installations requiring an 18-way consumer unit.
• Domestic consumer unit replacement and upgrade projects.
• Split-load circuit arrangements using two RCCB-protected sections.
• New-build housing electrical installations.
• Residential refurbishment and renovation projects.
• Distribution of domestic lighting and socket circuits.
• Installations requiring a 100 A main switch.
• Electrical distribution boards using ABB-compatible outgoing protective devices.
• Professional electrical contracting and consumer unit assembly.
• Indoor applications requiring a steel consumer unit enclosure.