AQ-102 Arc flash protection

AQ-102 is a sophisticated microprocessor-based arc flash protection unit for arc light detection. It is designed to minimize the damage caused by an arcing fault (arc flash) by tripping the circuit breaker that sources the fault current. The complete system self-supervision function of AQ-102 provides the highest level of dependability by continuously monitoring all internal system functions as well as external connections.

Features:

  • A wide range for the power supply (18…72 V DC or 80…265 V AC/DC)
  • A maximum of 3 fiber 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


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  • Light (L>)
  • Circuit breaker failure protection (50BF/52BF)
  • Trip time when using mechanical trip relays: 7 ms*
  • Reset time (arc light stage): 2 ms
  • Protection operational after power up: 88 ms
  • *) total trip time when using arc light (L>) or when using arc light (L>) and phase/earth overcurrent (I>) from an AQ-110x unit
  • Applicable sensors
  • AQ-06 plastic fiber sensor (3...40 m) (optional)
  • AQ-06 plastic fiber sensor (3...40 m) (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: 24/110/220 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
  • 11 indication LEDs
  • Multifunction push button (SET)
  • Autoconfiguration
  • Indication reset
  • System check
  • Sensors and wiring
  • Binary I/O
  • Trip coil
  • Power supply
  • Internal voltages
  • Settings
  • AQ-200 series
  • AQ-300 series
  • AQ-100 series