Product information
Overview
Applications
- Power system quality measurement: Measures electrical variables, energy, power factor, total harmonic distortion, and harmonics per phase.
Key Features
- 3-phase electrical measurement: Measures voltage, current, active power, reactive power, power factor, frequency, and apparent, active, and reactive energy.
- Power quality measurement: Measures THDu, THDi, and even and odd harmonics per phase up to the 64th harmonic.
- Color graphics TFT display: The display measures 72 mm x 54 mm, has adjustable backlight and contrast, and provides 4 keys.
- MODBUS TCP communication: Provides 2 Fast Ethernet interfaces with 2 x RJ45 connections and MODBUS TCP support at 10 Mbit/s or 100 Mbit/s.
- Digital inputs and outputs: Provides 2 electronic passive digital inputs and 2 electronic passive digital outputs with screw-type terminals.
- Panel installation and protection: The 96 x 96 mm device is intended for stationary panels in closed rooms, with IP65 protection on the front and IP20 protection at the terminal.
Technical Summary
| Product type | Measuring device for power system quality measurement |
|---|---|
| Measurement configuration | 3-phase; 45 Hz to 65 Hz |
| Rated voltage | 690/400 V Ue |
| Rated current | x/1 A or x/5 A Ie |
| Supply | DC extra-low-voltage power supply unit, 18 … 60 V, 9 VA |
| Display | Color graphics TFT, 72 mm x 54 mm |
| Communication | 2 Fast Ethernet interfaces; MODBUS TCP; 10 Mbit/s and 100 Mbit/s |
| Digital I/O | 2 digital inputs and 2 digital outputs |
| Front protection | IP65 |
| Terminal protection | IP20 |
| Mounting | Vertical control-panel installation; DIN-rail mounting: No |
Frequently Asked Questions
What is the measuring frequency range of Siemens 7KM4220-1BA01-1EA0?
The measurable line frequency is 45 Hz to 65 Hz, with automatic line-frequency detection.
What communication interfaces does the device provide?
It provides 2 Fast Ethernet interfaces with 2 x RJ45 connections and supports MODBUS TCP at 10 Mbit/s and 100 Mbit/s.
What are the voltage and current measurement inputs?
Rated voltage is 690/400 V Ue, and rated current is x/1 A or x/5 A Ie. The voltage and current measurement inputs use screw-type terminals.
How is the device mounted and protected?
It is intended for vertical control-panel installation. Front protection is IP65 and terminal protection is IP20; DIN-rail mounting is not provided.
