Why Choose the ABB EPH-S11104 Protecta Home 4-Way 100A RCCB Consumer Unit?
The ABB EPH-S11104 (1TVC151800S3099) is a compact 4-way consumer unit with a factory-fitted 100 A residual current circuit breaker (RCCB), designed for residential and light commercial electrical distribution. Part of the ABB Protecta Home range, this consumer unit provides a practical solution for installations requiring four outgoing circuit ways and a common residual current protective device.
Unlike a main switch-only consumer unit, the ABB EPH-S11104 uses a 100 A RCCB as its incoming switching and residual current protection device. This arrangement allows compatible outgoing circuits to be supplied through a single RCCB, providing residual current protection while retaining a convenient means of manual switching. The four-way layout is particularly useful for smaller electrical installations, dedicated circuit groups and distribution board upgrades.
Manufactured with a durable steel enclosure finished in RAL 7035 grey, the EPH-S11104 has nominal dimensions of 250 × 190 × 105 mm (H × W × D). ABB's Protecta Home range is designed to BS EN 61439-3 and is supplied with a shrouded busbar, neutral and earth terminal bars, and installation instructions, helping professional installers create an organised and compliant electrical distribution assembly.
Key Advantages
- 4-way consumer unit provides capacity for four compatible outgoing circuit positions.
- Factory-fitted 100 A RCCB incomer combines manual switching with residual current protection.
- Four modular positions support an organised arrangement of compatible outgoing protective devices.
- Compact enclosure dimensions of 250 × 190 × 105 mm help accommodate space-conscious installations.
- Durable steel construction provides a robust housing for electrical distribution equipment.
- RAL 7035 grey finish offers a clean, professional appearance.
- Shrouded busbar supplied for use with approved modular protective devices.
- Neutral and earth terminal bars included for convenient conductor termination.
- Factory-fitted incoming RCCB simplifies the selection of the consumer unit's incoming protective device.
- BS EN 61439-3 consumer unit design supports professional low-voltage distribution installations.
- Suitable for residential electrical upgrades, refurbishments and new installations.
- Part of ABB's established Protecta Home electrical distribution range.
Key Features
- Manufacturer: ABB.
- Product family: Protecta Home.
- Model: EPH-S11104.
- ABB order code: 1TVC151800S3099.
- 4 outgoing circuit ways.
- 4 modular positions.
- 100 A RCCB incoming device.
- Residual current protection for circuits supplied through the incomer.
- Manual switching capability through the RCCB.
- Steel consumer unit enclosure.
- RAL 7035 grey finish.
- Shrouded busbar supplied.
- Neutral terminal bar supplied.
- Protective earth terminal bar supplied.
- Nominal height: 250 mm.
- Nominal width: 190 mm.
- Nominal depth: 105 mm.
- BS EN 61439-3 consumer unit family design.
- Suitable for compatible ABB modular circuit protection equipment.
Understanding the 100A RCCB Incomer and Four-Way Circuit Configuration
The ABB EPH-S11104 is part of the 100 A RCCB incomer range of Protecta Home consumer units. Its factory-fitted RCCB monitors the current flowing through the conductors it protects and disconnects the supply when a residual current imbalance exceeds the device's specified operating threshold. This provides an important protective function for suitably designed electrical installations.
The 100 A rating refers to the RCCB's rated current and must not be confused with its residual operating current. The RCCB's residual operating current, type and other protective characteristics must be verified from the fitted device's technical information. An RCCB does not independently provide overload or short-circuit protection, so appropriate upstream protection and correctly selected outgoing overcurrent protective devices are essential.
With four outgoing ways, the EPH-S11104 offers greater circuit capacity than the two-way EPH-S11102 while retaining the same nominal enclosure dimensions. The included shrouded busbar, neutral terminal bar and earth terminal bar help installers organise electrical connections and install compatible outgoing protective devices according to ABB's approved assembly arrangements.
Because the outgoing circuits share a common RCCB incomer, an RCCB operation may disconnect all circuits supplied through that device. Installers should therefore consider circuit continuity, expected protective conductor currents and the requirements of BS 7671 when designing the installation. The completed assembly must comply with ABB's installation instructions and the applicable electrical safety requirements.
Typical Applications
- Small residential electrical distribution installations.
- Domestic consumer unit replacements and electrical upgrades.
- Dedicated groups of circuits requiring common residual current protection.
- Residential refurbishment and renovation projects.
- Garages and domestic workshops with several outgoing circuits.
- Utility rooms and ancillary building electrical distribution.
- Small offices and light commercial premises.
- Indoor distribution systems requiring four outgoing circuit ways.
- Electrical installations using compatible ABB modular protective devices.
- Projects requiring a compact steel consumer unit with a factory-fitted 100 A RCCB incomer.
