The A-102 arc ash protection device is a sophisticated microprocessor-based arc ash protection unit for arc light detection. It is designed to minimize the damage caused by an arcing fault (arc ash) by tripping the circuit breaker that sources the fault current. The complete system self-supervision function of the A-102 arc ash protection device provides the highest level of dependability by continuously monitoring all internal system functions as well as external connections.
- A wide range for the power supply (18…72 V DC or 92…265V AC/DC).
- A maximum of 3 ber loop sensors.
- 4 trip relays (with 7 ms trip time).
- 1 system failure relay.
- 1 fast binary output.
- 2 fast binary inputs.
- 1 multifunction push button.
- Non-volatile memory.
- 11 indication LEDs.
