Examples of where AFDDs can be used include:

• in locations with sleeping accommodations (e.g. hotels, nursing homes, bedrooms in homes),
• in locations with risks of fire due to high quantities of flammable materials (e.g. barns, wood-working shops, stores of combustible materials),
• in locations with combustible constructional materials (e.g. wooden buildings),
• in fire propagating structures (e.g. high rise buildings),
• in locations where irreplaceable goods are housed (e.g. museums).

The installation of Acti9 Active is highly recommended by the manufacturer to protect circuits with highest risk of fire, such as:

• protruding cables (risk of knocks),
• outside cables (greater risk of deterioration) ,
• unprotected cables in secluded areas (like storage rooms) ,
• ageing, deteriorating wiring or wiring for which the connection boxes are inaccessible.

The product must not be installed on circuits requiring a high level of continuity of service. Not compatible with ATEX regulations.

Acti9 Active is an arc fault detection device with overload, short circuit and residual current protection, which aims to reduce the risk of electrical fire.

By continuously analyzing a large number of electrical parameters, it detects the appearance of electric arcs that are responsible for starting fires. It isolates the circuit concerned which reduces flame appearance occurrence.

Regulation 421.1.7 of BS 7671: 2018 (IET Wiring Regulations 18th Edition) recommends the use of AFDD to protect against arc fault in AC final circuits.

A-SI type:

The A-SI type provides increased immunity from electrical interference and polluted or corrosive environments.

Wireless-communication device:

• Used together with a concentrator or a gateway to collect and process the data, Acti9 Active AFDD provides circuit monitoring and diagnosis down to load level.
• Wireless-communication technology simplifies switchboard wiring and commissioning operations: no wiring is required for the Acti9 Active AFDD to communicate with the concentrator or the gateway.

Features and benefits:

• Customizable thresholds for pre-alarms.
• Overload.
• Earth leakage.
• Overvoltage.
• Indication for nature of electrical fault.
• Historical data.
• Protection logs.
• U, I & P measuring.
• Load monitoring.
• Protection for people, appliances, circuit, and against fire MCB+MSU+RCD+AFDD.