The DTSD1352-xSyD Series Multiloop Power Meter is designed to simultaneously monitor multiple independent circuits, making it ideal for energy management in data centers, distribution boards, and smart panelboards. This rail-mounted device supports X three-phase and Y single-phase loops, enabling comprehensive measurement of electrical parameters including voltage, current, frequency, energy, and harmonics. Its versatile communication options and relay outputs allow easy integration into Modbus-based EMS/SCADA platforms, making it a perfect fit for commercial and industrial applications requiring multi-circuit supervision from a single device.

Technical Specifications

Feature	Specification
Model	DTSD1352-xSyD
Voltage Rating	AC 3×220/380V
Current Input	AC 250A, 100A (via external CTs)
Input Overload Capacity	1.2× continuous; 10× for 1s
Power Consumption	≤0.5VA per channel
Frequency Range	45–65Hz; accuracy: 0.05Hz
Measurement Accuracy	Voltage & Current: Class 0.5
Harmonic Measurement	2nd–31st order, accuracy ±1%
Alarm Functions	Overvoltage, overcurrent, phase loss, DI linkage
Digital Inputs (DI)	4-channel passive dry contact input
Digital Outputs (DO)	2-channel relay output (AC 250V/3A or DC 30V/3A)
Pulse Output	Optocoupler with open collector
Communication Interface	RS485, Modbus-RTU
Baud Rate	1200–38400 bps
Auxiliary Power Supply	AC/DC 85–265V
Operating Temperature	-20°C to +60°C
Storage Temperature	-40°C to +70°C
Relative Humidity	≤95%, no condensation
Altitude	≤2500 meters
Installation	DIN-rail (35mm)
Dimensions (mm)	87.8 (L) × 72 (W) × 71.5 (H)

  Functions

• Simultaneous multi-loop measurement of three-phase and single-phase circuits
• Full energy metering: U, I, F, P, Q, S, PF
• Harmonic analysis up to 31st order
• Multi-rate metering: 4 time zones, 14 time periods
• Digital input detection and alarm triggering
• Programmable relay outputs for fault interlocking or remote alarms
• Remote communication over RS485 Modbus-RTU

Applications

• Smart energy panels and switchgear
• Commercial building energy management
• Power distribution boards with multi-load measurement
• Data center rack-level power monitoring
• Factory automation and equipment-level power 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.