AQ-103LV Arc flash protection relay unit device

AQ-103LV Arc Flash Protection Relay

The AQ-103LV arc flash protection relay is a state-of-the-art microprocessor-based device engineered to detect and mitigate the risks associated with arc flash incidents. By rapidly identifying the onset of an arc fault, it triggers a circuit breaker trip, effectively isolating the faulty circuit and minimizing potential damage to equipment and personnel.

  • Advanced and accurate Arc Flash Detection
  • Self-supervision of internal components and external connections
  • Flexible Integration with AQ-110PLV and AQ-110FLV systems
  • Providing targeted protection independently in light-only systems
  • Supporting RS-485 and Modbus protocols
  • Equipped with 14 arc sensor channels & optional one fiber optic sensor channel

 

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The AQ-103LV arc flash protection device is designed to detect arc flash rapidly in low-voltage switchgear. By monitoring arcing signs in LV electrical switchgear, it trips a circuit breaker that sources the fault current.

Feature of AQ-103LV Arc Flash Protection Relay

  • Wide Voltage Range: Operates reliably on DC (18-72V) and AC/DC (92-265V) power supplies.
  • Extensive Sensor Capacity: Supports up to 14 arc light point sensors for comprehensive coverage.
  • Flexible Fiber Loop Integration: Accommodates up to one fiber loop sensor or direct connection to a quenching device.
  • Versatile Output Options: This unit features 4 trip relays, 1 system failure relay, 1 fast binary output, 2 fast binary inputs, and 1 high-speed output.
  • User-Friendly Interface: Equipped with a multifunction push button and 25 indication LEDs for easy operation and monitoring.
  • Reliable Data Storage: Non-volatile memory ensures data retention even in power outages.
  • Advanced Communication: Optional Modbus protocol enables seamless integration with SCADA systems and remote monitoring.
  • Size: Height: 177 mm (7.00″) , Width: 102 mm (4.02”), Depth: 162 mm (6.38”)

 

Specification of AQ-103LV Arc Flash Protection Relay

Auxiliary power supply 92…265 V AC/DC
18…72 V DC (optional)
Maximum interruption 100 ms
Maximum power consumption 5 W
Standby current 90 mA
Total trip time using mechanical trip relays: 7 ms
using solid-state trip relays: 2 ms
Reset time (arc light stage) 2 ms
Applicable sensors light sensor, light and pressure sensor & optional plastic glass fiber sensor
Trip relays 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 Number of inputs: 1-2
Threshold voltage: 24 V DC
Rated current: 3 mA, 20mA
HMI 25 indication LEDs
Multifunction push button (SET)
Autoconfiguration
Indication reset
System check
Self-supervision Sensors and wiring
Binary I/O
Trip coil
Power supply
Internal voltages
Settings
Communication Modbus RTU

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