The ACR10RH series is a high-precision rail-mounted multifunction power meter designed for industrial power monitoring, energy management, and energy-saving retrofits. It supports a full suite of electrical parameter measurement—voltage, current, power, energy, frequency, harmonics, and maximum demand. The ACR10RH enables simple, cost-effective retrofitting with its support for external open-type CTs and Rogowski coils, eliminating the need to interrupt the primary bus. The device integrates LCD display, RS485 communication, and optional I/O for comprehensive power diagnostics in real time.

Technical Specifications

Feature	Specification
Model	ACR10RH-DxxT(R)E4 / E3
Installation Type	DIN rail (guide rail)
Voltage Input	AC 57.7/100V or 220/380V (rated); 1.2× continuous, 2× for 1s
Current Input	Via open-type CT or Rogowski coil (80A to 20000A)
Frequency	45–65Hz
Power Supply	AC 85–265V or DC 100–350V / DC 24V / DC 48V
Power Consumption	≤10VA
Accuracy	Frequency: ±0.05Hz
Communication	RS485, Modbus-RTU protocol
Display	LCD with function keys (FN, SET, ▲, ▼, ENTER)
Digital Inputs (DI)	Up to 4 (dry contact)
Relay Outputs (DO)	Up to 2 (3A @ AC250V/DC30V)
Pulse Output	2 channels (4000–8000 imp/kWh)
Harmonics	2nd to 31st order; THD included
Event Logging (optional)	SOE (requires DI/DO configuration)
Max Demand Measurement	Supported
Environment	Temp: -10°C to +55°C (storage: -20°C to +70°C), RH: ≤95% non-condensing
Altitude	≤2500m
Insulation Resistance	≥100MΩ; Withstand voltage: AC 2kV (1 min)

Functions

• Multi-parameter monitoring: voltage, current, power, frequency, power factor
• Four-quadrant energy metering (active and reactive)
• Harmonic measurement (2nd–31st), THD display
• RS485 Modbus communication for EMS/SCADA integration
• LCD display for real-time readouts and device setup
• Optional switch inputs for event triggers and pulse outputs for metering interfaces
• Compact, safe installation with non-intrusive CT connection

Applications

• Energy retrofit projects in steel, smelting, and semiconductor industries
• PV cabinet energy management and grid-connected monitoring
• Power quality analysis in industrial electrical panels
• Demand-side management in substations and automation systems
• Smart building and commercial energy tracking

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.