Why Choose the ABB EPH-S66222 Protecta Home 63A Dual RCCB Consumer Unit?
The ABB EPH-S66222 is a reliable 63 A split-load consumer unit with two 63 A residual current circuit breakers (RCCBs), designed for organised low-voltage electrical distribution in residential and suitable commercial installations. As part of the ABB Protecta Home consumer unit series, it provides a practical distribution enclosure for compatible modular circuit protection devices, combining main supply isolation with residual current protection for grouped outgoing circuits.
The EPH-S66222 is identified as an AFSL Protecta Home consumer unit, incorporating a 63 A main switch arrangement and 2 × 63 A RCCBs. This configuration enables electrical circuits to be distributed across two residual current protection groups, helping installers organise circuit protection and simplify fault identification and maintenance.
Manufactured as part of ABB's established Protecta Home steel consumer unit range, the EPH-S66222 supports professional electrical installation with a robust enclosure, structured device mounting and practical wiring facilities. Identified by ABB order code 1TVC151800S3171, it is suitable for projects requiring a dedicated dual-RCCB distribution arrangement with a 63 A incoming switch configuration.
Key Advantages
- 63 A main switch configuration for suitable low-voltage electrical distribution installations.
- Two 63 A RCCBs provide residual current protection for separate groups of outgoing circuits.
- AFSL split-load arrangement supports organised circuit distribution.
- Part of the established ABB Protecta Home consumer unit series.
- Robust steel enclosure construction for professional electrical installations.
- Supports installation of compatible modular circuit protection devices.
- Dual-RCCB configuration allows circuit groups to be arranged according to installation requirements.
- Accessible device arrangement supports inspection, maintenance and fault identification.
- Suitable for residential and appropriate light commercial electrical distribution systems.
- Genuine ABB product identified by manufacturer order code 1TVC151800S3171.
Key Features
- ABB Protecta Home consumer unit series.
- EPH-S66222 model designation.
- AFSL consumer unit configuration.
- 63 A main switch arrangement.
- 2 × 63 A residual current circuit breakers (RCCBs).
- Split-load electrical distribution arrangement.
- Steel enclosure construction associated with the Protecta Home range.
- Designed for compatible modular DIN rail circuit protection equipment.
- Supports grouped residual current protection of outgoing electrical circuits.
- Protecta Home range features shrouded busbar arrangements and neutral and earth connection facilities.
- Suitable for professional low-voltage electrical distribution installations.
- Manufacturer order code: 1TVC151800S3171.
Technical Specifications
- Manufacturer: ABB
- Series: Protecta Home
- Model: EPH-S66222
- ABB order code: 1TVC151800S3171
- Product group: Protecta Home
- Product designation: EPH-S66222 AFSL PH CU - 63A + 2x63A RCCB
- Product type: Split-load electrical consumer unit
- Configuration: AFSL
- Main switch rating: 63 A
- Residual current protection: Dual RCCB arrangement
- Number of RCCBs: 2
- RCCB rated current: 63 A each
- Protection arrangement: Two RCCB-protected circuit groups
- Enclosure family: Protecta Home steel consumer units
- Equipment mounting: Modular DIN rail arrangement
- Applicable enclosure assembly standard: BS EN 61439-3 (Protecta Home range)
- Application: Low-voltage electrical distribution
- Installation environment: Suitable indoor electrical installations
- Equipment category: Consumer units and distribution boards
Reliable Split-Load Circuit Protection for Electrical Installations
Split-load consumer units provide a practical method of organising electrical distribution circuits into separately protected groups. In a dual-RCCB arrangement, outgoing circuits are allocated between two residual current devices, allowing each RCCB to monitor its associated circuit group for residual current imbalance. This arrangement can help limit the number of circuits affected when one RCCB operates, although all circuits connected to the affected RCCB will lose supply.
The ABB EPH-S66222 Protecta Home consumer unit combines a 63 A main switch with two 63 A RCCBs, providing an integrated arrangement for incoming isolation and grouped residual current protection. RCCBs detect residual current faults but do not provide overload or short-circuit protection by themselves. Compatible overcurrent protective devices must therefore be selected and installed for the outgoing circuits.
The ABB Protecta Home steel enclosure range is designed around BS EN 61439-3 distribution board assembly requirements. Correct installation of the EPH-S66222 requires appropriate protective device selection, circuit allocation, conductor sizing and verification of the completed assembly. The 63 A main switch rating and individual 63 A RCCB ratings must be respected, and the two RCCB ratings must not be added together to determine the permitted incoming supply current.
Typical Applications
- Residential low-voltage electrical distribution boards.
- Domestic consumer unit installations with split-load circuit protection.
- Lighting and socket circuit distribution in suitable buildings.
- Small commercial premises and office electrical installations.
- Electrical distribution refurbishment and replacement projects.
- Installations requiring two groups of RCCB-protected circuits.
- Building services and general-purpose electrical distribution systems.
- Professional electrical contracting and maintenance applications.
