APM521 3-Phase Multifunction Panel Meter
Characteristic
Communication
Standard : RS485(Modbus-RTU)
Optional : Profibus(Profibus-DP), Ethernet(Modbus-TCP, HTTP, DHCP)
Display
LCD display U, I, P, Q, PF, kWh and other energy consumption, power measurement, harmonic conten
Rated U and l
Voltage: AC 100V, 110V, 400V, 690V ; Current : AC1A, 5A, support 2.5 mm 2 line access;
General
APM series power meters ofACREL are power meters that are designed accordingto IEC standards and synchronized with intemnational advanced technology.
APM series metershavefull power measurement, enery statistics, analysis of power quality and network communications and other functions, are mainly used for comprehensive monitoring of the quality of power supply network.
Function
● Voltage, current and power accuracy: +/-0.2%
● Active energy: Class D (0.2S); reactive energy: Class 2
● Power quality: harmonics 2-63, imbalance, deviation and sequence components
● RS485 Modbus-RTU; optional Ethernet Modbus-TCP/FTP
● Optional 4DI/2DO, 2AO 4-20 mA and second RS485
● Operating temperature: -40°C to +70°C
● Storage temperature: -40°C to +80°C
● Humidity: <=95% without condensation
● Altitude: <=2000 m
● IP54 front panel; IP30 body; indoor dry location
Appearance
Wiring
Installation
Typical connection
Communication Standard : RS485(Modbus-RTU) Optional : Profibus(Profibus-DP), Ethernet(Modbus-TCP, HTTP, DHCP)
Technical data
| Parameter | Value |
|---|---|
| Voltage | AC 100V, 110V, 400V, 690V ; Current : AC1A, 5A, support 2.5 mm 2 line access |
| Storage temperature | -40°C to +80°C Humidity: <=95% without condensation Altitude: <=2000 m IP54 front panel; IP30 body; indoor dry location |
Built-in functions
- Display LCD display U, I, P, Q, PF, kWh and other energy consumption, power measurement, harmonic conten
- Voltage, current and power accuracy: +/-0.2%
- Active energy: Class D (0.2S); reactive energy: Class 2
- Power quality: harmonics 2-63, imbalance, deviation and sequence components
Ask us about this model. Send us the rated values of your circuit and the supply voltage; we confirm the ordering code, wiring diagram and register list within one working day.
| Rated voltage (UL/CE) | 66 V L-N / 115 V L-L; 230 V L-N / 400 V L-L; 277 V L-N / 480 V L-L; 400 V L-N / 690 V L-L |
| Rated current | 1 A or 5 A secondary |
| Measurement accuracy | Voltage and current +/-0.2%; active, reactive and apparent power +/-0.2% |
| Energy accuracy | Active energy Class D (0.2S); reactive energy Class 2 |
| Grid frequency | 50 / 60 Hz, error +/-0.2% |
| Response rate | 200 ms or less for voltage, current and power; 1 s or less for energy |
| Power quality | Unbalance, phase angle, total / odd / even harmonics, 2nd-63rd content, waveform, sequence components, K-factor |
| Energy functions | Four-quadrant, split-phase, apparent, multi-rate and frozen energy |
| Demand | Real-time and maximum current, active, reactive and apparent demand with time stamp |
| Event records | Up to 128 DI/DO records and 128 alarm records |
| Communication | RS485 Modbus-RTU, address 1-247, baud 1200-38400 bps; DL/T 645-2007 |
| Optional communication | Ethernet Modbus-TCP and FTP (E module), timed logging to MicroSD |
| Optional I/O | 4 DI + 2 DO, 2 analog outputs 4-20 mA, second RS485 |
| Auxiliary power | AC/DC 85-300 V; 4 W and 10 VA or less |
| Protection degree | IP54 front panel, IP30 body; pollution degree class 2, OVC III |
| Panel size | 96 x 96 mm, cut-out 88 x 88 mm |
| Shell size | 86.5 x 86.5 x 50 mm; module 86 x 86 x 30.5 mm; rail version 96 x 96 x 96 mm |
| Reference standards | IEC 61010-1, IEC EN 61010-2-30, UL 61010-1 / 61010-2-030, GB/T 17215.321-2021, GB/T 17215.323-2022 |
| Operating temperature | -40 ~ +70 ℃ |
| Storage temperature | -40 ~ +80 ℃ |
| Relative humidity | ≤ 95 %, no condensation |
| Altitude | ≤ 2000 m |
| Installation location | Indoor, dry location; pollution degree 2; overvoltage category III |
