Product Overview
Technical Summary
| Parameter | Value |
|---|---|
| Measurement functions | Voltage, current, active power, reactive power, frequency, apparent energy, active energy, reactive energy, cos phi, harmonics and THD |
| Line voltage measurement | 20 V to 600 V AC between line conductors; 11.5 V to 346 V AC between (PE)N and L |
| Current measuring ranges | 1 A and 5 A AC |
| Line frequency | 45 Hz to 65 Hz with automatic line frequency detection |
| Communication interface | 1 Fast Ethernet interface, RJ45 (8P8C) |
| Communication protocol | MODBUS TCP |
| Ethernet transfer rates | 10 Mbit/s and 100 Mbit/s |
| Digital inputs | 2, screw-type terminals, external voltage supply |
| Digital outputs | 2 solid-state outputs with switching or pulse output function |
| Power supply | 22 to 65 V DC, screw terminals |
| Accuracy | Class 0.2 according to IEC61557-12 and/or class 0.2S according to IEC62053-22 for active energy |
Applications
- Power system quality measurement: Measures voltage, current, active power, reactive power, frequency, energy, harmonics and THD in power systems.
- Digital signal handling: Uses 2 digital inputs and 2 digital outputs for externally supplied input signals and switching or pulse output functions.
Key Features
- Power system quality measurement: Measures voltage, current, active power, reactive power and frequency; also measures apparent, active and reactive energy, cos phi, harmonics from the 2nd to 64th order and THD.
- 3-phase measurement inputs: Measures up to 500 V between line conductors and 289 V between (PE)N and L at the maximum rated values; current measuring ranges are 1 A and 5 A.
- Modbus TCP interface: One Fast Ethernet interface with RJ45 (8P8C) connection supports MODBUS TCP at 10 Mbit/s and 100 Mbit/s.
- Digital inputs and outputs: Has 2 digital inputs and 2 digital outputs. The outputs are solid state and support switching or pulse output functions.
- LCD and adjustable backlight: Has a 54 mm × 72 mm LCD with adjustable contrast and adjustable backlight illuminance; the display has 4 keys.
- Installation and supply: Uses a 22 to 65 V DC extra-low-voltage power supply unit with screw terminals. The device has IP65 protection on the front and is mounted vertically in stationary panels in closed rooms.
Frequently Asked Questions
1. Which communication protocol and interface does the 7KM4211-1BA00-3AA0 support?
It supports MODBUS TCP through 1 Fast Ethernet interface with an RJ45 (8P8C) connection. The Ethernet transfer rates are 10 Mbit/s and 100 Mbit/s.
2. What are the voltage and current measurement ranges?
The device measures 20 V to 600 V AC between line conductors and 11.5 V to 346 V AC between (PE)N and L. The current measuring ranges are 1 A and 5 A AC.
3. What supply and connections does the device use?
It uses a 22 to 65 V DC extra-low-voltage power supply unit with screw terminals. The voltage and current measurement inputs and the digital inputs and outputs also use screw-type terminals.
