AQ-110P Arc point sensor unit with overcurrent

AQ 110 is a sophisticated micro-processor based arc flash protection unit with combined current and arc sensing. Combined current and arc sensing provides an integrated dual trip criteria. It is designed to minimize the damage caused by an arcing fault (arc flash) by tripping the circuit breaker sourcing the fault current. The AQ 110 complete system self-supervision function provides the highest level of dependability by continuously monitoring all internal system functions along with external connections.


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  • 50ARC Overcurrent
  • 50NARC Earth fault
  • Light L>
  • Light and Pressure L>/P>
  • Circuit Breaker Failure Protection 50BF
  • Trip time using mechanical trip relays
  • Reset time (arc light stage)
  • Protection operational after power up
  • Number: 3 NO + 1 NC or 4 NO
  • Rated voltage: 250 Vac/dc
  • Continuous carry: 5 A
  • Make and carry for 0.5 s: 30 A
  • Make and carry for 3 s: 16 A
  • Breaking capacity DC, when time constant L/R = 40 ms: 40 W; 0.36 A at 110 Vdc
  • Contact material: AgNi 90/10
  • Rated voltage: +24 Vdc
  • Rated current: 20 mA (max)
  • Number of outputs: 1
  • Binary Iinputs BI1, BI2
  • Threshold voltage: 24 or 110 or 220 Vdc
  • Rated voltage: 250 V
  • Rated current: 3 mA
  • Number of inputs: 2
  • Power supply
  • Us: 80…265 Vac/dc (option 18…72 Vdc)
  • Maximum interruption: 100 ms
  • Maximum power consumption: 5 W
  • Standby current: 90 mA
  • Indication LEDs: 20
  • Multifunction push button
  • Autoconfiguration
  • Indication reset
  • System check
  • Sensors and wiring
  • Binary I/O
  • Trip coil
  • Power supply
  • Internal voltages
  • Settings
  • CT connections
  • AQ-1000 Quenching device
  • AQ-2000 Quenching device
  • AQ-200 series
  • AQ-300 series
  • AQ-100 series
  • See AQ SAS manual