Product Overview
Technical Summary
| Parameter | Value |
|---|---|
| Product type | 3-phase measuring device with LCD |
| Voltage measurement | 690 V line-to-line rated; 400 V line-to-neutral rated |
| Current inputs | 1 A and 5 A AC rated values |
| Measured quantities | Voltage, current, active power, reactive power, frequency, apparent/active/reactive energy |
| Communication interface | 1 Fast Ethernet interface, RJ45 (8P8C) |
| Protocol | MODBUS TCP |
| Transfer rate | 10 000 kbit/s |
| Supply | 95 … 240 V AC; 110 … 340 V DC |
| Display | LCD, 54 mm high x 72 mm wide; 4 keys |
| Connection | Screw-type terminals |
| Front protection | IP65 |
Applications
- Electrical measurement: Measures voltage, current, active power, reactive power and frequency in 3-phase systems.
- Energy measurement: Measures apparent, active and reactive energy.
- Ethernet communication: Transfers measured data through the MODBUS TCP protocol over the Fast Ethernet interface.
- Digital output signalling: Provides a digital output with switching or pulse output function.
Key Features
- Measurement functions: Measures voltage, current, active power, reactive power and frequency; supports apparent, active and reactive energy measurement.
- Voltage and current measurement: Measures up to 690 V line-to-line and 400 V line-to-neutral at rated values, with 1 A and 5 A AC current inputs.
- Communication interface: Provides 1 Fast Ethernet interface with RJ45 (8P8C) connection and MODBUS TCP protocol at 10 000 kbit/s.
- Display and operation: Has a white LCD with a 54 mm height and 72 mm width, plus 4 keys.
- Supply and terminals: Uses a wide-range AC/DC power supply: 95 … 240 V AC or 110 … 340 V DC; measurement inputs use screw-type terminals.
- Mounting and protection: Measures 96 x 96 x 56 mm, has 51 mm installation depth, vertical mounting position and IP65 front protection.
Frequently Asked Questions
1. What does the Siemens SENTRON 7KM2112-0BA00-3AA0 measure?
It measures voltage, current, active power, reactive power and frequency, and supports apparent, active and reactive energy measurement.
2. What voltage and current values can this measuring device handle?
Its rated measurement values are 690 V line-to-line, 400 V line-to-neutral, 1 A AC and 5 A AC. The voltage measurement ranges are 70 V to 831 V line-to-line and 40 V to 480 V line-to-neutral.
3. Which communication interface and protocol are provided?
It has 1 Fast Ethernet interface with an RJ45 (8P8C) connection and supports MODBUS TCP at 10 000 kbit/s.
4. What power supply and connection does it use?
It uses 95 … 240 V AC or 110 … 340 V DC and has screw-type terminals at the measurement inputs.
5. How is the device mounted and protected?
The device has a vertical mounting position, 51 mm installation depth and IP65 protection on the front.
