AQ-110F Arc fiber sensor device with overcurrent


AQ-110F arc fiber sensor device with overcurrent is a sophisticated microprocessor-based arc flash protection device with combined current and arc sensing, which provides two (2) integrated trip criteria. It is designed to minimize the damage caused by an arcing fault (arc flash) by tripping the circuit breaker that sources the fault current. Additionally, the complete system self-supervision function of AQ-110F provides the highest level of dependability by continuously monitoring all internal system functions as well as external connections.

The AQ-110F arc fiber sensor device with overcurrent is a multipurpose arc flash protection device which is applicable to a variety of applications. AQ-110F can therefore function as a stand-alone device or as the main unit of a more complex arc protection system via a binary bus.


  • A wide range for the power supply (18…72 V DC or 92…265 V AC/DC).
  • Three-phase current detection.
  • Residual current detection.
  • A maximum of 3 fiber loop sensors.
  • Connectivity to both MV (SIQuench) and LV (AQ-1000) arc quenching systems.
  • 2 high-speed outputs (HSOs, 2 ms trip time).
  • 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.
  • 19 indication LEDs.

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

“Arc flash comparison” by Arcteq Relays (


Technical data

  • Overcurrent (50Arc)
  • Earth fault (50NArc)
  • Light (L>)
  • Circuit breaker failure protection (50BF/52BF)
  • Total trip time when using mechanical trip relays: 7 ms (only arc light signal from an AQ-110x device)
  • Total trip time when using mechanical trip relays: 7 ms (both overcurrent and arc light signal from an AQ-110x device)
  • Reset time (arc light stage): 2 ms

  • Applicable sensors
  • AQ-06 plastic fiber sensor (3...40 m) (optional)
  • AQ-07 glass fiber sensor (3-50 m length) (optional)
  • AQ-08 glass fiber sensor (3...15 m) (optional)
  • Trip relays (T1, T2, T3, T4)
  • 3 NO + 1 NC or 4 NO
  • Rated voltage: 250 V AC/DC
  • Continuous carry: 5 A
  • Make-and-carry for 3 s: 16 A
  • Make-and-carry for 0.5 s: 30 A
  • Breaking capacity DC (when L/R = 40 ms): 40 W; 0.36 A at 110 V DC
  • Contact material: AgNi 90/10
  • Binary output (BO1)
  • Number of outputs: 1
  • Rated voltage: +24 V DC
  • Maximum rated current: 20 mA
  • Binary inputs (BI1, BI2)
  • Number of inputs: 2
  • Threshold voltage: 24 V DC
  • Rated voltage: 250 V
  • Rated current: 3 mA
  • Power supply
  • Auxiliary power supply: 92…265 V AC/DC
  • Auxiliary power supply: 18…72 V DC (optional)
  • Maximum interruption: 100 ms
  • Maximum power consumption: 5 W
  • Standby current: 90 mA

  • 19 indication LEDs
  • Multifunction push button (SET)
  • Autoconfiguration
  • Indication reset
  • System check

  • Sensors and wiring
  • Binary I/O
  • Trip coil
  • Power supply
  • Internal voltages
  • Settings
  • CT connections

  • AQ 100 series
  • AQ 200 series
  • AQ 300 series
  • AQ-1000 arc quenching device (LV)
  • SIQuench arc quenching device (MV)

  • AX006 Wall mounting bracket

Additional material

Application Drawing

AQ-110F wiring diagram

Related products

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