VFD for Compressors: Selection Guide
How to select and size a VFD for screw, reciprocating and centrifugal compressors, covering overload rating, turndown limits and energy savings.
The Siemens 6SL3055-0AA00-4BA0 is the BOP20 Basic Operator Panel for SINAMICS S120 electronic controls, fitting Control Units CU305, CU310 and CU320. It has a two-line display and six keys for on-device parameter setting and diagnostic readout, weighs 54 g, and clips directly onto the control unit's front slot for local commissioning without a separate PC-based configuration tool.
Fit the BOP20 directly onto a CU305, CU310 or CU320 control unit when on-panel parameter access and diagnostics are needed at the drive cabinet. It is the basic-level panel in the S120 range, using key-based navigation on a two-line display rather than a graphical screen.
Used for commissioning and routine diagnostic checks directly at SINAMICS S120 control units, where a technician needs local parameter access without connecting a PC running STARTER or Startdrive.
| Display design | LCD, monochrome |
|---|
| Degree of protection | IP20 / UL open type |
|---|---|
| Dimensions: Width | 49.50 mm (1.95 in) |
| Dimensions: Height | 53.00 mm (2.09 in) |
| Page 1 of 1 | Generated Sun Nov 1 04:00:18 CET 2026 |
|---|
| Part number | 6SL3055-0AA00-4BA0 |
|---|---|
| Brand | Siemens |
| Condition | New, factory sealed |
| Source | Siemens and its authorised distributors |
| Warranty | Manufacturer warranty |
| EAN | 4019169391368 |
| Net weight | 0.054 kg |
|---|---|
| Shipping weight | 0.554 kg |
| Ships from | Türkiye |
| Dispatch | 13 Nov |
| Stock | In stock |
Source: manufacturer data · Last verified: 01 Nov 2026
No documents are on file for this part yet.
Ask us for the datasheetThe tariff (HS) code on file for 6SL3055-0AA00-4BA0 is 85371091.
The EAN (GTIN) of 6SL3055-0AA00-4BA0 is 4019169391368.
6SL3055-0AA00-4BA0 ships from Türkiye. Shipping calculated at checkout · import duties and taxes paid on arrival. Stock items are dispatched within 1–2 business days.
How to select and size a VFD for screw, reciprocating and centrifugal compressors, covering overload rating, turndown limits and energy savings.
Size your VFD correctly with our complete guide covering FLA calculation, duty cycle, derating, harmonics, and brand-specific sizing tables. Shop at Stoklink.
Compare VFD types including VSI, CSI, PWM, and matrix converters with selection criteria, harmonic data, and real installation examples. Shop at Stoklink.