Acrel APM521 UL Certified Multifunction Power Meter
Acrel APM521 UL Certified Multifunction Power Meter
● Active energy accuracy at 0.2s level (Class D)
● SD card storage for real-time electrical parameters
● Modulized design
● Support both embedded and rail-mounted installation methods
● phase sequence diagnosis
● Standard&Certificate: UL; IEC
Acrel APM521 UL Certified Multifunction Power Meter
General
Acrel APM521 network power meter (hereinafter referred to as the meter) is designed according to IEC international standards, featuring full electrical quantity measurement, energy statistics, power quality analysis, event logging functions, and network communication capabilities. It is primarily used for comprehensive monitoring of power supply quality in power grids. This series of meters is equipped with DI/ DO modules and AO modules that offer a wealth of functions, allowing for flexible implementation of full electrical quantity measurement and monitoring of switch statuses in electrical circuits.
Type Selection
Note:
1. K: Digital Input/Output, DI: Digital Input, DO: Digital Output, C: RS485 Communication, M: Analog Output, CE: Ethernet Communication, Log: Timed Recording, R: Rail Mounting.
2.When selecting functional modules, the instrument can support both embedded installation and guide rail installation. The R function is only optional when no functional modules are selected and guide rail installation is required.
Application
Network
Installation
Outline and Dimension
Application
• Full power monitoring of incoming, bus or critical feeders
• Monitoring of automation devices and intelligent terminal systems in low-voltage cabinets
• Substation, building or factory automation systems
• Distribution Automation System in Industrial Enterprises
• Factory power system automation and load control
• Energy and Energy Efficiency Management System
• Power Plant Electrical Energy Management System
Packaging
| Packaging Overview(Minimum) |  |
 |
| Packing Dimension and Weight(Minimum) | Minimum Package Contain 1 pcs ProductsDimension: 170*150*130mm | Total N.W. (1 pcs) 0.67 KG |
| Packing Dimension and Weight(Large) | Large Package Contain 36 pcs ProductsDimension: 540*530*480mm | Total N.W. (36 pcs) 11.4 KG |
| Average Lead Time | Manufacturing: 3~4 days(If paired with system need extra 1~2 days for adjustment) | Shippment: 8~9 days(World Wide Shipment) |
| Product HS Code | 9028301400 | |
| Country of Origin | China | |
Acrel APM521 UL Certified Multifunction Power Meter
Function Selection
| Measuredparameters | Total electrical measurement |
| Four-quadrant energy、Four - quadrant reactive electric energy、Split phase electricity、Apparent energy 、Multi-rate energy | |
| Pulse output | Total active power, total reactive power electrical energy pulse output |
| Demand | Three-phase current, active power, reactive power, apparent power real-time demand and maximum demand (including timestamp), last month’s maximum demand (including timestamp). |
| Extremevalue statistics | Current, line voltage, phase voltage, active power, reactive power and other electrical parameters extreme values of this month and last month (including time stamps) |
| Power quality | Unbalance of current, line voltage, phase voltage |
| Voltage phase angle, current phase angle | |
| Total (odd, even) harmonic content of voltage and current | |
| Harmonic content of voltage and current (2-63 times) | |
| Voltage peak coefficient | |
| Telephone waveform factor | |
| Current K-factor | |
| Vector | |
| Voltage and current waveform | |
| Fundamental voltage ,current and power factor | |
| Voltage deviation, frequency deviation | |
| Positive – sequence voltage, negative - sequence voltage, zero - sequence voltage | |
| Positive – sequence current, negative – sequence current, zero - sequence current |
| Frozen electric energy | 24 - hour frozen electric energy, 31 - day frozen electric energy, December frozen electric energy, regular – time frozen electric energy |
| Event logging | DIDO records, which can record the last 128 DID records |
| Alarm logging | The last 128 alarm records can be recorded |
| Communication | Modbus - RTU protocol, DL/T 645-2007 statute |
| Optional features | 4-channel digital input and 2-channel digital output |
| 2 channels of analog output, 4-20mA | |
| Expand the second RS485 communication channel with Modbus - RTU protocol | |
| Expand Ethernet communication with the MODBUS-TCP protocol ，FTP protocol |
Technical Parameters
| Item | Performance Parameters | ||
| Voltag | Rated voltage （UL 、CE） | 66VAC L-N | 115VAC L-L |
| 230VAC L-N | 400VAC L-L | ||
| 277VAC L-N | 480VAC L-L | ||
| 400VAC L-N | 690VAC L-L | ||
| Rated voltage （CPA） | 3P3L | 3P4L | |
| 3x100V3x380V
3x690V |
3×57.7/100V3×220/380V
3×400/690V |
||
| Overload | 1.2 times rating (continuous)2 times the rating for 1 second | ||
| Power consumption | <1VA | ||
| Accuracy class | Error ±0.2% | ||
| Current | Rated current（UL 、CE） | 1A; 5A | |
| Rated current （CPA） | 0.015-0.075（6）A（Active energy）3X1(6)A（Reactive energy） | ||
| Overload | 1.2 times rating (continuous)10 times the rating for 1 second | ||
| Power consumption | <0.2VA | ||
| Accuracy class | Error ±0.2% | ||
| Power | Active, reactive, apparent power, error ±0.2% | ||
| Grid frequency | UL; CE | 50Hz/60Hz, error ±0.2% | |
| CPA | 50Hz ，error ±0.2% | ||
| Response rate | ≤200ms (voltage, current, power) | ||
| ≤1s (electrical energy) | |||
| Measurement category | 66ULN(＋20%) 115ULL(＋20%) CATⅢ 230ULN(＋20%) 400ULL(＋20%) CATⅢ277ULN(＋20%) 480ULL(＋20%) CATⅢ 400ULN(＋20%) 690ULL(＋20%) CATⅡ | ||
| Metering | Electric energy | Active energy ：Class D（0.2S）Reactive energy (Class 2 accuracy) | |
| Auxiliary power supply | AC/DC 85-300V | ||
| power consumption≤4W 、10VA | |||
| Gnetic | Electrostatic discharge immunity class IV | ||
| Electrical fast transient burst immunity class IV | |||
| Surge (shock) immunity Class IV | |||
| Security | Power frequency withstand voltage | Between communication and signal input, AC4kV 1min | |
| Insulation resistance | Input and output terminals to casing >500MΩ | ||
| Communication | Interface and communication protocol | RS485 interface and Modbus RTU protocol | |
| Communication address range | Modbus RTU:1~ 247 | ||
| Baud rate | Support 1200bps-38400bps | ||
| Environment | Operating temperature | -40℃~+70℃ | |
| Storage temperature | -40℃~+80℃ | ||
| Relative humidity | ≤95% (without condensation) | ||
| Altitude | ≤2000m | ||
| ≥2000m, ≤5000mOnly applicable to the power supply with the voltage range of AC/DC 85-265V and the voltage below 277/480V. | |||
| Installation environment | Indoor use（dry location） | ||
| IP rating | IP54(Front panel), IP30(Body) | ||
| Pollution degree | Class 2 | ||
| Overvoltage categories | OVC III | ||
| Reference standard | UL | CAN/CSA C22.2 NO.61010-1-12UL 61010-1
CSA C22.2 No.61010-2-030 UL 61010-2-030 |
|
| IEC; CE | IEC 61010-1IEC EN 61010-2-30 | ||
| CPA | GB/T17215.321-2021GB/T17215.323-2022 | ||
Power Meter APM521 UL CAS 证书 Project80254482_Certificate_of_compliance
