Delta Power meter DPM-C520 Series

The Digital Power Meter offers all the measurement capabilities required to monitor current, voltage, power range and four-quadrant metering in an electrical installation. Its main function is to measure various electrical energy values and power quality parameters, including power factory, harmonics, and current/voltage unbalance. Delta’s Power Meter can also identify equipment malfunctions, energy waste, and other power quality issues for purposes such as analyzing electricity consumption and managing energy usage.

Features include highly precise measurement of bidirectional electrical energy and power parameters. It also provides simple installation and easy operation and a built-in RS-485 communication port that supports Modbus RTU/ASCII. All models comply with international installation dimensions and CE international safety approvals.

Description

Measurement Accuracy
Current	± 0.5%
Voltage	± 0.5%
Active Energy	± 0.5%
Reactive Energy	± 2%
Apparent Energy	± 2%
Active Power	± 0.5%
Reactive Power	± 1%
Apparent Power	± 2%
Power Factor	± 0.5%
Frequency	± 0.05%
Input Characteristics
Measuring System Type	1P2W, 1P3W, 3P3W, 3P4W
Voltage	35 Vac ~ 690 Vac (L-L), 20 Vac ~ 400 Vac (L-N)
Current	1 A / 5 A
Frequency	45 ~ 70 Hz
Control Power	AC: 100 ~ 240 V (Max. Power Consumption 4.6 W) DC: 100 ~ 300 V
Data Record
Max. / Min Log	●
Alarm Status & Timestamp	●
Alarm Counting	●
Communication
Protocol (Interface)	Modbus RTU (RS-485)
Mechanical Characteristics
IP Protection – Front Display	IP52
IP Protection – Meter Body	IP20
Dimensions (W × H × D, mm)	96 × 96 × 95.4
Weight (g)	400
Environmental Characteristics
Operating Temperature	-20°C ~ +60°C
Storage Temperature	-30°C ~ +70°C
Relative Humidity	≤ 95% RH
Altitude	Below 2,000 meters
Electromagnetic Compatibility
Electrostatic Discharge	IEC 61000-4-2
Immunity to Radiated Fields	IEC 61000-4-3
Immunity to Fast Transients	IEC 61000-4-4
Immunity to Impulse Waves	IEC 61000-4-5
Conducted Immunity	IEC 61000-4-6
Immunity to Magnetic Fields	IEC 61000-4-8
Immunity to Voltage Dips	IEC 61000-4-11
Radiated Emissions	FCC Part 15 EN 55011 Class A
Conducted Emissions	FCC Part 15 EN 55011 Class A
Harmonics Emissions	IEC 61000-3-2
Flicker Emissions	IEC 61000-3-3
Certification
Safety	UL / CE
Accuracy	CMA