AEC4900 intelligent motor controller is a product based on microprocessor technology and modular design structure. The controller is used to operate AC 50Hz, rated working voltage up to 660V, rated current up to 250A AC motor control circuit contactor, to protect the motor from overload, overheating, external fault, stall, phase sequence, unbalanced phase, undervoltage, overvoltage, underpower, grounding or leakage and other faults.
The AEC4900 series is an intelligent motor controller designed for AC 50 Hz motors with rated voltages up to 660 V and currents up to 250 A. It offers overload, over‑heat, ground‑fault, leakage, undervoltage, overvoltage, and other protections, plus measurement, self‑diagnosis, maintenance management and bus communication functions.
The controller is built on a micro‑processor platform with a modular, compact design that can be installed in low‑voltage MCC panels or drawer cabinets of 1/4 module or larger. It supports internal or external current transformers, RS‑485 communication (Modbus‑RTU or Profibus‑DP), and optional auxiliary functions such as 4‑20 mA analog output and leakage detection. This manual is written in Chinese.
| Rated Working Voltage (DC) | DC24 V |
|---|---|
| Rated Working Voltage (AC) | AC220 V |
| Motor Voltage Range | AC380 V–660 V, 50 Hz |
| Rated Current Options | 2 A, 5 A, 6.3 A, 25 A, 100 A, 250 A |
| Ambient Temperature Range | -5 °C to 55 °C |
| Maximum Installation Altitude | 2000 m |