3. General
The AQ-103LV device is a sophisticated microprocessor-based arc flash protection unit with fourteen
(14) arc sensor channels. Optionally it can also have one (1) fiber optic sensor channel. The device is
designed to minimize the damage caused by an arcing fault (arc flash) by tripping the circuit breaker
which supplies current to the fault. The complete system self-supervision functionality of AQ-103LV
provides the highest level of dependability as it continuously monitors all internal system functions.
The AQ-103LV device is designed according to the latest protection relay standards and it is therefore
suitable for installations in rough environments. These include utilities and power plants (both traditional
and renewable), various heavy industry applications (oil, gas, mining, steel, etc.) as well as commercial
and institutional electrical systems. While AQ-103LV is suitable for MV use, it is designed for LV
switchgears and for motor control center applications in both new and retrofitted installations.
3.1. Dimensions and installation
AQ-103LV can be either door-mounted or panel-mounted in a standard 19 inch rack. The unit’s
dimensions are as follows:
• Height: 177 mm (7.00")
• Width: 102 mm (4.02”)
• Depth: 162 mm (6.38”).
The figure below presents a side view of the device and gives the dimensions in more detail. While the
image is of the AQ-110PLV device, the measurements are the same for AQ-103 and AQ-103LV.
Please note that all values are given in millimeters.
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AQ
Q-103L
-103LV
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Instruction manual
Version: 1.00
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