Product Overview
Technical Summary
| Parameter | Value |
|---|---|
| Product type | Power monitoring device |
| Display | LCD, 54 mm x 72 mm |
| Communication interfaces | 2 Fast Ethernet interfaces, 2 x RJ45 |
| Protocol | MODBUS TCP |
| Auxiliary power | 24 … 60 V -20/+10% DC |
| Digital inputs | 2, screw-type terminals |
| Digital outputs | 2 bidirectional outputs, switching or pulse output function |
| Voltage measurement | 11.5 V to 480 V line-to-neutral AC; 690 V line-to-line AC maximum measurable value |
| Current measurement | 1 A or 5 A AC rated value |
| Installation | Vertical panel mounting; 96 mm x 96 mm x 56 mm; 51 mm installation depth |
Applications
- Electrical variable measurement: Measures voltage, current, active power, reactive power, and frequency.
- Pulse and switching output: Uses the digital outputs for switching or pulse output functions.
Key Features
- Electrical measurement: Measures voltage, current, active power, reactive power, and frequency; voltage and current measurement use TRMS.
- Display and panel format: LCD with a 54 mm height and 72 mm width, 4 keys, adjustable contrast, and a 96 x 96 mm device size.
- Ethernet communication: Provides 2 Fast Ethernet interfaces with 2 x RJ45 connections and supports MODBUS TCP; transfer rate: 10 000 kbit/s to 100 000 kbit/s.
- Digital I/O and connections: Includes 2 digital inputs and 2 bidirectional digital outputs, all with screw-type terminals; the digital outputs support switching or pulse output function.
- Supply and protection: Auxiliary power: 24 … 60 V -20/+10% DC. Front protection class: IP65; enclosure rating: NEMA Type 5.
- Panel installation: Designed for vertical installation in stationary panels in closed rooms; dimensions are 96 mm x 96 mm x 56 mm, with 51 mm installation depth.
Frequently Asked Questions
1. What does the Siemens 7KM3220-1BA01-1EA0 measure?
It measures voltage, current, active power, reactive power, and frequency.
2. Which communication interface and protocol does it use?
It has 2 Fast Ethernet interfaces with 2 x RJ45 connections and supports MODBUS TCP.
3. What auxiliary power does the device require?
Auxiliary power is 24 … 60 V -20/+10% DC.
4. How is the device connected and mounted?
The voltage and current measuring inputs and the digital I/O use screw-type terminals. Mounting is vertical in stationary panels in closed rooms; DIN-rail mounting is not supported.
