Product Overview
Technical Summary
| Parameter | Value |
|---|---|
| Product type | Measuring device for power system quality measurement |
| Voltage measurement | Line-to-line up to 690 V AC rated; line-to-neutral up to 400 V AC rated |
| Current ranges | 1 A and 5 A AC |
| Communication interface | 1 Fast Ethernet interface, RJ45 (8P8C), MODBUS TCP |
| Digital I/O | 2 digital inputs; 2 solid-state digital outputs |
| Supply | 95 … 240 V AC; 110 … 340 V DC |
| Display | LCD, 54 mm x 72 mm |
| Accuracy | Voltage and current +/- 0.2 %; active energy Class 0.2 according to IEC61557-12 and/or class 0.2S according to IEC62053-22 |
| Front protection | IP65 |
| Mounting | Vertical; DIN-rail mounting No |
Applications
- Power measurement: Measures voltage, current, active power, reactive power and frequency in power systems.
- Power quality measurement: Measures harmonics from 2nd to 64th and THD for power system quality measurement.
- Energy measurement: Measures apparent, active and reactive energy.
- Digital signal processing: Provides 2 digital inputs and 2 digital outputs for external digital signals, switching or pulse output functions.
Key Features
- Power system measurement: Measures voltage, current, active power, reactive power and frequency; supports apparent energy, active energy, reactive energy, cos phi, harmonics from 2nd to 64th and THD.
- Electrical measurement ranges: Measures line-to-line voltage up to 690 V AC and line-to-neutral voltage up to 400 V AC rated; current ranges are 1 A and 5 A AC.
- Modbus TCP interface: Provides 1 Fast Ethernet interface with RJ45 (8P8C) connection, MODBUS TCP support and 10 Mbit/s or 100 Mbit/s Ethernet transfer rate.
- Digital I/O: Has 2 digital inputs and 2 solid-state digital outputs. The outputs support switching or pulse output functions and use screw-type terminals.
- Wide-range supply: Uses a wide-range AC/DC power supply: 95 … 240 V AC or 110 … 340 V DC.
- Panel installation: Has a 96 mm x 96 mm x 82 mm design, vertical mounting position, 77 mm installation depth and IP65 protection on the front.
Frequently Asked Questions
1. What does the 7KM4212-0BA00-3AA0 measure?
It measures voltage, current, active power, reactive power, frequency, apparent energy, active energy, reactive energy, cos phi, harmonics from 2nd to 64th and THD.
2. Which communication interface and protocol are provided?
It has 1 Fast Ethernet interface with an RJ45 (8P8C) connection and supports MODBUS TCP at 10 Mbit/s or 100 Mbit/s.
3. What digital inputs and outputs does it have?
It has 2 digital inputs and 2 solid-state digital outputs. The outputs support switching or pulse output functions and use screw-type terminals.
4. What supply voltage does it use?
It uses 95 … 240 V AC or 110 … 340 V DC.
5. How is the device installed?
It is installed vertically in stationary panels in closed rooms. DIN-rail mounting is No; the dimensions are 96 mm x 96 mm x 82 mm with 77 mm installation depth.
