The AIM-T300 Industrial Insulation Monitor is a high-performance, multi-function device designed to monitor the insulation resistance and temperature of electrical systems in real-time. Developed for ungrounded (IT) power systems, it detects insulation degradation, temperature rise, and provides early warning through alarm relay outputs and RS485 Modbus communication. Compact and modular, the AIM-T300 ensures enhanced electrical safety and system reliability in mission-critical industrial environments.

Technical Specifications

Feature	Specification
Model	AIM-T300
System Type	IT (ungrounded) power systems
Monitored Parameters	Insulation resistance + temperature
Input Sensor Types	PT100, Thermocouple, NTC
Communication Protocol	Modbus-RTU
Interface	RS485
Power Supply	24V DC
Installation	DIN-rail mount
Output	Digital communication + alarm relays
Alarm Function	Overtemperature & insulation fault alerts
Mounting Environment	Industrial cabinets or automation panels

Functions

• Monitors insulation resistance of ungrounded systems
• Simultaneous multi-point temperature acquisition
• Configurable thresholds for insulation and temperature alarms
• RS485 Modbus communication for integration into SCADA/EMS systems
• Local or remote fault indication and relay triggering
• Modular DIN-rail design for easy panel deployment

Applications

• Electrical safety in ungrounded power systems
• Industrial process control panels
• Substations and switchgear monitoring
• Medical facilities requiring continuous insulation monitoring
• Rail transit, petrochemical plants, and high-reliability energy networks

Manufacturer Information

Acrel Co., Ltd., established in 2003, is a high-tech enterprise specializing in energy efficiency management and electrical safety solutions. With a comprehensive product line ranging from cloud platform software to sensors, Acrel offers smart energy meters, power sensors, and protection devices. Their products are widely utilized across industries such as electric power, communications, rail transit, petrochemical, and construction. In 2012, Acrel was listed on the Growth Enterprise Market with the stock code 300286.SZ. The company is committed to delivering innovative and reliable energy management solutions to its global clientele.