Arc faults are a common cause of domestic and building electrical fires. Electrical arcs can result from, to name just a few examples, damaged wires in a bedroom lamp, pinched leads and worn electrical insulation. Arc temperatures can exceed 5500C (10 000F) and may ignite fires when they come into contact with combustible materials.
An arc-fault detection device (AFDD) detects fault-related electrical arcs and breaks the circuit. At the same time it is tolerant to electrical arcs caused by the normal operation of electrical devices such as switches, brushed motors and the plugging and unplugging of devices. In some countries, including the USA and Canada, where AFDD is known as an arc fault circuit interrupter (AFCI) protection is a requirement.
The DIN rail Acti 9 iARC module:
- Continuously monitors circuits for fault-related electrical arcs. Upon detection of such arcs, it breaks the circuit
- Selectively distinguishes between harmless arcs that occur during normal operation of a switch, plug or motor and potentially dangerous arcs that occur in faulty equipment or cabling
- Is easy to fit directly into almost any DIN rail distribution board
- Is manufactured with high quality materials and is carefully engineered to provide optimal protection and functionality while remaining cost effective.
Please note: miniature circuit breakers (MCBs), residual-current circuit breakers (RCCBs) and residual-current circuit breakers with overcurrent protection (RCBOs) alone DO NOT provide protection against arc faults. For full protection, they must be used in conjunction with an AFDD/AFCI module.