APM801 Three-Phase Multifunction Panel Meter
Characteristic
Communication
Standard: RS485 (Modbus-RTU)
Optional: Ethernet, Profibus-DP or a second RS485
Display
Display
LCD display for U, I, P, Q, S, PF, Hz and energy
Demand, alarms, events and I/O status display
Rated U and l
Voltage: AC 100V, 110V, 400V, 690V ; Current : AC1A, 5A
General
The Acrel APM801 is a 96 x 96 mm three-phase multifunction panel meter designed for high-accuracy electrical measurement, energy statistics and demand management. It measures voltage, current, frequency, active power, reactive power, apparent power, power factor and four-quadrant energy, and records real-time and maximum demand with timestamps. Built-in RS485 Modbus-RTU and 2DI + 2DO support integration with energy management and power monitoring systems, while plug-in modules can add Ethernet, Profibus-DP, an additional RS485 port, analog I/O, TF-card logging and temperature monitoring.
Function
Accuracy
Voltage, current and active power: Class 0.2S
Reactive power: Class 2
Frequency: 45-65 Hz
Auxiliary power supply
AC/DC 85-265 V
P2 option: AC/DC 115-415 V
Pulse output
Open-collector optocoupler
4000 imp/kWh (5 A); 8000 imp/kWh (1 A)
Power consumption
Voltage/current input: <0.5 VA per channel
Main meter: ≤15 VA
Demand
Three-phase current and total P/Q/S
Real-time and maximum demand with timestamps
Sliding window: 1/2/3/5 min; period: 5-60 min
Communication and I/O
RS485 Modbus-RTU
Built-in 2DI + 2DO
Optional Ethernet / Profibus-DP / second RS485
Installation
Panel mounted
Dimensions
Front panel: 96 × 96 mm
Body: 90 × 90 × 64.3 mm
Cut-out: 92 (+0.8/-0) × 92 (+0.8/-0) mm
Relay output
AC 250 V / 3 A or DC 30 V / 3 A
Protection
Display panel IP52
Appearance
Wiring
Installation
Typical connection
Need the user manual, a wiring diagram or a quotation for your project? Ask us — we reply within one working day.
| Electrical network | Three-phase three-wire or three-phase four-wire |
| Rated voltage | AC 100 V, 110 V, 400 V or 690 V |
| Rated current | AC 1 A or 5 A CT-secondary input |
| Frequency | 45-65 Hz |
| Accuracy | Voltage, current and active power: Class 0.2S; reactive power: Class 2 |
| Demand | Current plus active, reactive and apparent power; real-time and maximum values with timestamps |
| Demand method | Sliding window: 1, 2, 3 or 5 min; period: 5-60 min |
| Communication | RS485 Modbus-RTU and DL/T 645; optional Ethernet, Profibus-DP or second RS485 |
| Built-in I/O | 2 digital inputs + 2 relay outputs; active / reactive energy pulse output |
| Auxiliary supply | AC/DC 85-265 V or AC/DC 115-415 V (P2) |
| Installation | 96 x 96 mm panel; 92 x 92 mm cut-out; display panel IP52 |
