1TVC151800S3087 ABB EPH-S66211-AF Protecta Home 11-Way AFDD Consumer Unit 63A Main Switch 2 x 63A RCCBs

Why Choose the ABB EPH-S66211-AF Protecta Home 11-Way AFDD-Compatible Consumer Unit?

The ABB EPH-S66211-AF is an 11-way AFDD-compatible split-load consumer unit from the ABB Protecta Home range, designed for residential and light commercial electrical distribution. Featuring a 63 A main switch isolator and two 63 A residual current circuit breakers (RCCBs), this consumer unit provides central supply isolation and two separate residual current protection groups.

Designed to accommodate compatible arc fault detection devices (AFDDs), the EPH-S66211-AF offers 11 outgoing circuit ways and 22 modular positions. Its AFDD-compatible layout provides additional modular space for suitable protective devices, making it a practical choice for installations where arc fault detection forms part of the electrical protection strategy.

Housed in a durable steel enclosure measuring 500 × 330 × 105 mm, the ABB EPH-S66211-AF combines a space-efficient distribution arrangement with flexible circuit grouping. Its factory-fitted switching and residual current protection configuration supports professional electrical installations using appropriately selected ABB modular protective equipment.

Key Advantages

• 11-way AFDD-compatible consumer unit designed for modern electrical distribution requirements.
• 22 modular positions provide space for compatible arc fault detection and circuit protection devices.
• 63 A main switch isolator provides convenient central supply isolation.
• Two 63 A RCCBs establish separate residual current protection groups.
• AFDD-compatible configuration supports installations requiring additional arc fault protection.
• Variable split-load arrangement allows outgoing circuits to be allocated between two RCCB groups.
• Part of the established ABB Protecta Home electrical distribution range.
• Steel enclosure construction provides robust protection for electrical distribution equipment.
• RAL 7035 light grey finish provides a professional enclosure appearance.
• 500 × 330 × 105 mm nominal dimensions support practical installation planning.
• Factory-fitted main switch and RCCBs simplify distribution board assembly.
• Supplied with a shrouded busbar, neutral and earth bars, and installation instructions.
• Suitable for residential installations, consumer unit upgrades and electrical refurbishment projects.
• Genuine ABB product identified by manufacturer order code 1TVC151800S3087.

Key Features

• ABB Protecta Home consumer unit series.
• EPH-S66211-AF 11-way AFDD-compatible consumer unit.
• 11 outgoing circuit ways.
• 22 modular positions.
• 63 A main switch disconnector / isolator.
• 2 × 63 A residual current circuit breakers.
• Two RCCB-protected outgoing circuit groups.
• AFSL configuration for AFDD-compatible split-load distribution.
• Variable RCCB split arrangement.
• Durable steel enclosure construction.
• RAL 7035 light grey enclosure finish.
• Factory-fitted main switch and RCCBs.
• Shrouded busbar supplied.
• Neutral and protective earth termination bars supplied.
• Installation instructions included.
• Designed to accommodate compatible ABB AFDD protection devices.
• Suitable for professional electrical installation and maintenance.
• Nominal height: 500 mm.
• Nominal width: 330 mm.
• Nominal depth: 105 mm.
• ABB manufacturer order code 1TVC151800S3087.

11-Way AFDD-Compatible Distribution with Dual 63 A RCCB Protection

The ABB EPH-S66211-AF is designed for installations where arc fault detection protection is required or specified. AFDDs monitor electrical circuits for characteristic arcing conditions and disconnect the affected circuit when their specified detection criteria are met, helping reduce fire risks associated with certain electrical faults.

The consumer unit provides 11 outgoing circuit ways across 22 modular positions, allowing additional space for compatible AFDD-based protection devices. This arrangement is particularly useful where protective devices occupy more modular space than conventional single-module miniature circuit breakers.

A 63 A main switch isolator provides a central means of disconnecting the consumer unit supply. The assembly also incorporates two 63 A RCCBs, which establish separate residual current protection groups for outgoing circuits.

The variable split-load configuration enables circuit allocation between the two RCCB groups according to the approved busbar arrangement and installation design. Separating circuits across two RCCBs can reduce the number of circuits affected by an individual residual current trip, although circuits sharing the same RCCB may still be disconnected together.

The two RCCBs are rated at 63 A each. This rating describes their current-carrying capacity and should not be confused with residual current operating sensitivity. The actual residual current sensitivity and device type must be confirmed from the installed RCCB specifications.

AFDDs, RCCBs and miniature circuit breakers provide different protective functions. AFDDs detect specified arcing faults, RCCBs detect residual current imbalance, and MCBs provide overload and short-circuit protection. The complete protective functionality of each outgoing circuit depends on the devices selected and their approved installation arrangement.

The AF suffix identifies an AFDD-compatible consumer unit configuration; it does not mean that separate outgoing AFDD protective devices are included. Suitable ABB AFDDs and associated circuit protection devices should be selected separately according to the electrical design.

The 500 × 330 × 105 mm steel enclosure provides a practical housing for the distribution assembly. Its RAL 7035 finish, factory-fitted switching equipment, shrouded busbar and termination bars support professional installation. Final circuit design and installation must follow ABB instructions and applicable electrical installation regulations, including relevant BS 7671 requirements.

Typical Applications

• Residential consumer unit installations incorporating AFDD protection.
• Domestic electrical distribution boards requiring 11 outgoing circuit ways.
• Electrical installations requiring 22 modular positions for compatible protection equipment.
• Split-load distribution boards with two 63 A RCCBs.
• Installations requiring a 63 A main switch isolator.
• Electrical circuits where arc fault protection is specified.
• Lighting and socket outlet circuits using compatible protective devices.
• Consumer unit replacement and electrical refurbishment projects.
• Residential properties requiring additional electrical circuit protection functionality.
• Light commercial electrical distribution installations.
• Professional electrical contracting and building services projects.