PowerLogic A3 Arc Flash Protection
A3 Arc Flash Protection
 A3 Arc Flash Protection Unit |
The PowerLogic A3 is Schneider Electric’s next-generation arc flash protection, engineered to protect both low-voltage (LV) and medium-voltage (MV) electrical systems. Building on the proven A125 platform, the A3 delivers ultra-fast 2 milliseconds arc detection, flexible multi-panel configurations, and scalable architecture supporting up to 50 sensors and 4 to 8 control outputs.
The A3 features light point and loop sensing, current condition monitoring, and preventive maintenance sensing—all with integrated communication capabilities. Designed for ease of installation and reliable operation in harsh environments, the A3 is ideal for applications such as:
-
Switchgear
-
Control panels
-
Data centers
-
Substations
-
Renewable energy systems
It protects multiple panels by detecting light and current anomalies and isolating faults quickly, making it suitable for distribution systems, LV/MV PnB, and SI/EPC projects.
PowerLogic A3 Selection Guide
|
PowerLogic A3 |
A3 Range |
|||
|
A3F6P |
A3F12P |
A3S6P |
A3S12P |
|
|
Number of channels of input sensor |
6 |
12 |
6 |
12 |
|
Type of input sensors |
Light Point Sensor |
|||
|
Protection schemes |
Non-selective, Incomer, Feeder |
Non-selective, Incomer, Feeder |
Non-selective, Feeder |
Non-selective |
|
Output relays |
T1 / T2 / T3 |
T1 / T2 |
T3 |
N/A |
|
Watchdog outputs |
T4 |
N/A |
T4 |
N/A |
|
External power supply |
Yes |
N/A |
||
|
Size (Width x Height x Depth) |
70.6 x 134.4 x 126.2 mm / 2.78 x 5.29 x 4.97 in |
34 x 134.4 x 125.1 mm / 1.34 x 5.29 x 4.92 in |
||
|
Note: T1 and T3 are HSO contacts. T2 is conventional contact. T4 is used for WD. |
||||