Overview
The AMC300L is a multi-circuit power monitoring device that measures up to 6 three-phase or 18 single-phase circuits simultaneously.
It monitors voltage, current, power, energy, and more, with built-in data logging and alarms.
Ideal for data centers, commercial buildings, and industrial plants requiring compact, cost-effective energy monitoring.
Highlight
Multi-Circuit Monitoring
- 6 three-phase / 18 single-phase circuits
- External CTs with various ratios
- Per-circuit energy and power data
- Compact design saves panel space
- Individual circuit settings
Comprehensive Measurements
- Voltage, current, power, PF, frequency
- Four-quadrant energy (import/export)
- Per-phase and total values available
- Accuracy: 0.5 class (V/I), Class 1 energy
Advanced Data Logging
- 5000 records for power and current
- 500 alarm events stored
- Daily/monthly energy freeze (24 months)
- Real-time event recording
Flexible Communication
- RS485 with Modbus-RTU / YD/T1363
- Optional 4G or NB-IoT cellular
- Remote monitoring via cloud
- Supports up to 247 devices on bus
- Easy integration with SCADA/BMS
Function
| Multi-circuit monitoring | Simultaneously measures up to 6 three phase or 18 single phase circuits using external current transformers. |
| Voltage/Current measurement | Measures phase voltages, line voltages, phase currents, and zero sequence current. Accuracy: 0.5 class. |
| Power measurement | Calculates active, reactive, and apparent power per phase and total, with power factor and frequency. |
| Energy metering | Four quadrant active and reactive energy (import/export). Accuracy: Class 1. |
| Data logging | Stores up to 5000 historical records (power, current) and 500 alarm events. Daily/monthly freeze for 24 months. |
| Alarm | Configurable overvoltage, overcurrent, undervoltage, phase loss, and DI linked alarms. |
| Digital inputs | 4 dry contacts + 2 wet (AC 220V) inputs for status monitoring. |
| Relay outputs | 2 SPDT relay outputs (AC 250V/3A, DC 30V/3A) for control or alarm signaling. |
| Temperature measurement | 2 NTC channels, range -20℃～100℃ (±2℃). |
| Communication | RS485 with Modbus RTU or YD/T1363; optional 4G/NB IoT for wireless data upload. |
| Display | 96×96 LCD with Chinese characters, intuitive menu navigation. |
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Specification
| Parameter | Value | |
| Power Supply | AC/DC 85～265V, ≤10VA | |
| Input | Voltage | AC 3×220/380V (rated), 1.2× rated continuous, 2× rated/1s |
| Current | AC 100A (rated), 1.2× rated continuous, 10× rated/1s | |
| Frequency | 45～65Hz | |
| Measurement Accuracy | Voltage/Current | 0.5 class |
| Active Energy | Class 1 | |
| Frequency | ±0.05Hz | |
| Digital Inputs | 4 dry contacts + 2 wet (AC 220V) | |
| Relay Outputs | 2 channels, AC 250V/3A, DC 30V/3A | |
| Temperature Measurement | 2× NTC, -20℃～100℃, ±2℃ | |
| Communication | RS485, Modbus RTU / YD/T1363, baud 1200～38400; Optional: 4G, NB IoT | |
| Environmental | Operating Temperature | -20℃～+60℃ |
| Storage Temperature | -40℃～+70℃ | |
| Humidity | ≤95% RH (non condensing) | |
| EMC | Surge immunity | Level 4 |
| ESD | Level 3 | |
| EFT | Level 3 | |
| Dimensions & Mounting | Panel cutout | 88×88 mm |
| Overall dimensions (W×H×D) | 96×96×77.8 mm | |
| Mounting | Panel mount with brackets | |
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FAQ
It can monitor up to 6 three-phase circuits or 18 single-phase circuits simultaneously.
It supports Modbus-RTU and YD/T1363 over RS485. Optional 4G or NB-IoT modules are available for wireless communication.
Use the front panel buttons to enter the setup menu with password “0001”. Parameters such as communication, CT ratio, and alarm thresholds can be adjusted.
Yes, it stores up to 5000 historical records (power, current) and 500 alarm events, with daily/monthly energy freeze for 24 months.
Yes, it operates from -20℃ to +60℃ with high EMC immunity (Level 4 surge, Level 3 ESD/EFT), suitable for industrial applications.
Summary
The AMC300L integrates multiple circuits into one unit, saving panel space and installation costs. Its high accuracy and extensive data logging enable effective energy management and predictive maintenance. Flexible RS485 or wireless communication ensures seamless integration, enhancing power reliability and operational efficiency.
