Measurements and energy
Displays three-phase voltage, current, power, power factor and frequency, and tracks bidirectional energy. Tariff, statistics and harmonic features depend on the variant and firmware.
APM SERIES
Measures three-phase electrical parameters and energy at the distribution panel.

Displays three-phase voltage, current, power, power factor and frequency, and tracks bidirectional energy. Tariff, statistics and harmonic features depend on the variant and firmware.
Four digital inputs, two digital outputs and RS485 / Modbus RTU for integration with a distribution monitoring network.
96 × 96 mm front panel, 90 × 90 mm cutout and 5 VA consumption. Auxiliary supply: 65–460 V AC or 80–615 V DC.
Choose APM-480 for time-of-use metering or an LCD. Compare APM-480E when harmonic analysis is required.
For LV incomers and key metering circuits. LCD, three-phase quantities, active/reactive energy and time-of-use metering.
Adds total and individual harmonic analysis. Confirm harmonic range for the installed firmware.
√ Included · ● Optional · — Not listed
| Function | APM-480E | APM-480 |
|---|---|---|
| Phase voltage | √ | √ |
| Line voltage | √ | √ |
| Current | √ | √ |
| Active power | √ | √ |
| Reactive power | √ | √ |
| Apparent power | √ | √ |
| Power factor | √ | √ |
| Frequency | √ | √ |
| Active energy | √ | √ |
| Reactive energy | √ | √ |
| Time-of-use energy | √ | √ |
| Accuracy (%): I, U / Ep | 0.2/0.5S | 0.5/1.0 |
| Digital inputs | 4 | 4 |
| Digital outputs | 2 | 2 |
| Total harmonic distortion | √ | — |
| Individual harmonic distortion | √ | — |
| RS485 communications | √ | √ |
| Display | LCD | LCD |