Rated Current 80A Directly
MID Certificated
High Accuracy Class C
35mm DIN Rail Mounted
Pulse Output
4 Modules 72mm Width
For IoT Energy Management, Factory, School
IEC61557-8
Rated Voltage: 50V~1000V
Accordance with the CHAdeMO 3.0 & Combined Charging System (CCS)
Undervoltage and Overvoltage Detection
Stop Mode for Disabling the Measuring Pulse Generator
+86-18702106858 / +86-21-69156352
Acrel AIM-D500-CA DC insulation monitor is a cutting-edge device designed for 0-1000V DC systems, ensuring power supply safety by continuously monitoring insulation resistance in IT systems.
It meets the requirements of IEC 61557-8 and is compatible with the Combined Charging System (CCS) and CHAdeMO 3.0 standard.
It can monitor the insulation resistance of DC charging stations with a nominal system voltage range from 50V up to 1000V.
The device features a four-module enclosure and DIN-rail mounting, making it easy to install and integrate into existing systems.
It also has the capability to measure system voltage and detect undervoltage and overvoltage conditions.
Its stop mode allows users to disable the measuring pulse generator via the Modbus protocol, through the device menu, or by using an external button.
The AIM-D500-CA is an ideal solution for applications such as power plants, substations, EV chargers, UPS systems, and solar systems.
| Item | Parameter | |
| Supply voltage | Supply voltage Us | AC/DC 85~265V |
| Frequency | 50/60Hz | |
| Power consumption | ≤ 5 W | |
| IT system being monitored | Nominal system voltage with ACPD300, Un | DC 50…1000V |
| Nominal system voltage without ACPD300, Un | DC 50…400V | |
| Response values | Response value (Insulation prewarning) | Insulation alarm limit value…2MΩ |
| Response value (Insulation alarm) | 1kΩ…2MΩ | |
| Relative uncertainty | ±15%,±2kΩ | |
| Undervoltage detection | (80%~100%) Un(off)* | |
| Overvoltage detection | (100%~120%) Un(off)* | |
| accuracy | 1%,±1V | |
| CCS and CHAdeMO 3.0 mode | Permissible system leakage capacitance | ≤20μF |
| Measuring and display range of insulation resistance | 1kΩ…2MΩ | |
| Measurement uncertainty / Relative uncertainty | Ce≤5μF: ±15%,±2 kΩ | |
| Ce>5μF and RF>100 kΩ: ±15% | ||
| Response time | ≤10s | |
| Interface | RS485/Modbus-RTU | |
| Relay output | 2 x 1 n/o contact, AC 250V,3A, DC 30V,5A | |
| Environment | Operating temperature | -10℃ ~ +55℃ |
| Storage temperature | -20℃ ~ +70℃ | |
| Humidity | ≤95%RH, no condensation and corrosive gas | |
| Altitude | ≤2000m | |
| weight | AIM-D500-CA | 244.3g |
| ACPD300 | 86.1g | |
| Certification | CE, IEC,RoHS | |




Founded in 2003, Acrel Co., Ltd.【Stock Code: 300286.SZ】 is a high-tech enterprise specializing in energy management solutions and electrical safety. Headquartered in Shanghai, Acrel offers innovative and sustainable solutions for microgrid energy efficiency and electrical safety. With over 600 patents and software copyrights, Acrel has deployed more than 28,000 system solutions globally, forming a comprehensive "cloud-edge-end" energy internet architecture.
Acrel Co., Ltd. is China Wholesale AIM-D500-CA DC Din Rail Insulation Monitoring Device IMD with IEC61557-8 Manufacturers and AIM-D500-CA DC Din Rail Insulation Monitoring Device IMD with IEC61557-8 Factory. Acrel's integrated product ecosystem spans from cloud platform software to end-user components, covering sectors such as power, renewable energy, data centers, smart buildings, transportation, and smart cities. These solutions enable intelligent, real-time energy management, enhancing energy security and reducing operational costs. We offer AIM-D500-CA DC Din Rail Insulation Monitoring Device IMD with IEC61557-8 for sale.
The company's production facility, Jiangsu Acrel Electric Manufacturing Co., Ltd., adheres to strict quality standards and environmental guidelines, with advanced testing centers and a commitment to lead-free production processes. Acrel's team of over 500 engineers delivers cutting-edge energy efficiency systems and smart energy solutions.
With a strong domestic presence, Acrel is actively expanding internationally, supported by a global network of sales and technical teams and an e-commerce platform that ensures seamless service experiences worldwide. Acrel is proud to help businesses improve efficiency, reduce consumption, and achieve sustainability goals.
Together, we are building a smarter, greener future.
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