Description
The MGE DIGIT 34020874XD-8EA is a dedicated Controller PCB manufactured for MGE (now part of Schneider Electric/APC) Uninterruptible Power Supply (UPS) systems. As the central intelligence board of the UPS power management unit, it is responsible for monitoring input power quality, managing battery charging cycles, and controlling inverter output during power fluctuations or outages .
This board, also identified by part number OP3087ET, serves as the logic and power conversion control center for MGE UPS systems. The associated model numbers 3402087500 and 34020874XD-1EA represent related configurations or packaging variants within the same DIGIT board family .
Application Scenarios
In a data center or critical industrial facility, a UPS system stands between the utility grid and sensitive equipment. When grid power fails, the UPS must switch to battery power within milliseconds—no interruption, no data loss, no equipment damage. The MGE DIGIT 34020874XD-8EA is the board that makes this happen.
This controller PCB continuously scans the state of battery banks and utility AC input to initiate seamless switching to battery power . It precisely manages pulse-width modulation (PWM) signals to the output transistors, ensuring stable sine-wave power delivery. When a battery reaches end-of-life or the inverter experiences saturation, the 34020874XD-8EA detects and reports these faults to the UPS status panel, enabling maintenance teams to act before a backup power failure occurs .
Parameters
| Main Parameters | Value/Description |
|---|---|
| Product Model | 34020874XD-8EA (also OP3087ET) |
| Associated Models | 3402087500, 34020874XD-1EA |
| Manufacturer | MGE (Schneider Electric/APC) |
| Product Category | Controller PCB for UPS Systems |
| Function | UPS Logic & Power Conversion Control |
| Power Supply | Low voltage DC (derived from UPS internal supply) |
| Connectivity | Ribbon cable headers, logic-level I/O pins |
| Origin | France / International |
| Hot-Swap | Requires full shutdown for safe replacement |
| Board Color | Industrial Green (PCB) |
| Condition | Brand New |
| Warranty | One Year |
