The Siemens 6SL3203-0BE17-7BA1 is an unfiltered SINAMICS PM240-2 Power Module for the G120C drive system. It converts a 3-phase 200-240V AC input into a variable frequency output to control a 0.55 kW motor (High Overload). It features an integrated braking chopper for dynamic braking applications.
As an engineer, selecting the right drive components is critical for system reliability and performance. The Siemens 6SL3203-0BE17-7BA1 is a workhorse Power Module within the popular SINAMICS G120C family. It serves as the ‘muscle’ of the drive, handling the power conversion, while a separate Control Unit provides the ‘brains’. This module is specifically designed for low-voltage applications requiring precise motor control.
Let’s dive into the technical details to see if this is the right fit for your project.
Technical Specifications: 6SL3203-0BE17-7BA1
Here is a detailed breakdown of the key performance data for this Power Module.
| Specification | Value |
|---|---|
| Product Series | SINAMICS G120 Power Module PM240-2 |
| Input Voltage | 3-Phase 200 … 240 V AC (+10% / -20%) |
| Input Frequency | 47 … 63 Hz |
| Rated Power (High Overload – HO) | 0.55 kW / 0.75 HP |
| Rated Power (Low Overload – LO) | 0.75 kW / 1.0 HP |
| Rated Output Current (HO) | 3.0 A |
| Rated Output Current (LO) | 3.7 A |
| Output Frequency | 0 … 550 Hz |
| EMC Filter | Unfiltered (Class A filter can be added externally) |
| Braking Chopper | Integrated |
| Frame Size | FSA |
| Degree of Protection | IP20 / UL open type |
| Dimensions (W x H x D) | 73 x 173 x 155 mm (2.87 x 6.81 x 6.10 in) |
| Operating Temperature | -10 to +40 °C (derating up to +60 °C) |
Integration & Compatibility
A crucial point to remember is that this is a Power Module only. It cannot function independently. To create a complete variable frequency drive, you must pair it with a compatible SINAMICS G120C Control Unit (CU). The Control Unit clips onto the front of the Power Module and handles all logic, communication (e.g., PROFINET, EtherNet/IP), and I/O. Popular compatible CUs include the CU240E-2 and CU250S-2 series.
Frequently Asked Questions (FAQ)
What Control Unit is compatible with the 6SL3203-0BE17-7BA1?
This Power Module is designed to work with various SINAMICS G120C Control Units. The most common pairings are with the CU240E-2 (for standard applications with safety functions like STO) and the CU250S-2 (for more advanced positioning tasks). Always verify compatibility in the Siemens TIA Selection Tool for your specific firmware versions.
Do I absolutely need an external line filter?
It depends on your installation environment. In a shielded, isolated industrial cabinet far from sensitive electronics, you might operate without one. However, for most modern facilities and to meet CE, UL, or other regional EMC regulations, an external line filter is required. Siemens offers corresponding filters that mount alongside the drive. Using an unfiltered drive in a commercial or residential environment is typically not permitted.
What does ‘Integrated Braking Chopper’ mean for my application?
The integrated braking chopper allows the drive to dissipate regenerative energy. When a motor is decelerated rapidly or an overhauling load drives the motor, it acts as a generator, sending power back to the drive. The braking chopper diverts this energy to an external braking resistor (which you must purchase separately), preventing a drive fault due to overvoltage on the DC link. This is essential for applications like conveyors, hoists, and centrifuges that require fast stops.
