AQ-1000 Arc quenching device (low-voltage)
AQ-1000 Arc quenching device
AQ-1000 Arc quenching device


The AQ-1000 arc quenching device extinguishes arcing faults in systems with a maximum rated voltage of 690 V. The AQ-1000 arc quenching system is designed to limit the total arcing time to 4 ms and to minimize (or even eliminate) the damaging effects that an arc fault’s temperature and pressure cause. In most applications, this will result in an energy release of less than 1 cal/cm². AQ-1000 is fully resettable which allows for full system testing on-site.

AQ-1000 is used in conjunction with the AQ-100 arc protection system. When an AQ-100 series device detects a fault, it triggers the AQ-1000 arc quenching system and, simultaneously, trips the circuit breaker(s) feeding the fault. Then the AQ-1000 creates a low-impedance parallel path for the fault current to flow through, thus extinguishing the arc fault. The total arcing time is less than 4 milliseconds.

Learn more about AQ-1000:

“AQ-1000 Arc quenching device” by Arcteq Relays (

Learn more about how different protection techniques affect the consequences of an arc flash:

“Arc flash comparison” by Arcteq Relays (

AQ-1000 Arc quenching device

Technical data

  • Maximum rated voltage: 690 V
  • Short circuit withstand (IEC 60947-9-1/UL 2748): 100 kA (200 ms), 75 kA (500 ms), 50 kA (1 s)
  • BIL: 12 kV
  • Electric life: 2 operations at 100 kA, 200 ms each
  • Mechanical life: 100 operations
  • Total system operating time: 4 ms

  • AX001-3 Connection fiber (3 meters)
  • AX001-5 Connection fiber (5 meters)
  • AX001-10 Connection fiber (10 meters)

Additional material

Application Drawing

Application AQ-1000

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