Product Overview
Technical Summary
| Parameter | Value |
|---|---|
| Measurement functions | Voltage, current, active power, reactive power, and frequency |
| Rated voltage | 690/400 V at 45-65 Hz |
| Rated current | X/1 A or X/5 A AC |
| Communication protocol | Modbus RTU |
| Digital inputs | 2, with screw-type terminals |
| Digital outputs | 2 bidirectional outputs, with screw-type terminals |
| Auxiliary power | 24 … 60 V -20/+10% DC |
| Display | LCD, 54 mm x 72 mm |
| Front protection | IP65 |
| Mounting | Vertical panel mounting; DIN-rail mounting: No |
Applications
- Electrical variable measurement: Measures voltage, current, active power, reactive power, and frequency.
- Power monitoring communication: Transfers measured data using the Modbus RTU protocol.
Key Features
- Electrical measurement: Measures voltage, current, active power, reactive power, and frequency using TRMS measurement for voltage and current.
- Rated measurement values: Rated voltage is 690/400 V at 45-65 Hz; rated current is X/1 A or X/5 A AC.
- Communication: Modbus RTU protocol with transfer rates from 4.8 kbit/s to 115.2 kbit/s.
- Digital inputs and outputs: Has 2 digital inputs and 2 bidirectional digital outputs, with screw-type terminals.
- Auxiliary power: DC auxiliary power supply: 24 … 60 V -20/+10%.
- Panel installation: 96 x 96 mm device with vertical mounting, 56 mm depth, and IP65 protection on the front.
Frequently Asked Questions
1. What does the Siemens 7KM3120-1BA01-1EA0 measure?
It measures voltage, current, active power, reactive power, and frequency.
2. What are the rated voltage and current values?
Rated voltage is 690/400 V at 45-65 Hz. Rated current is X/1 A or X/5 A AC.
3. Which communication protocol does it use?
It uses Modbus RTU, with transfer rates from 4.8 kbit/s to 115.2 kbit/s.
4. How many digital inputs and outputs does it have?
It has 2 digital inputs and 2 bidirectional digital outputs. Both use screw-type terminals.
5. How is the device mounted?
It has vertical panel mounting. DIN-rail mounting is not available.
