Siemens 6SL3131-6TE25-5AA3 is a 55 kW SINAMICS S120 Smart Line Module for 380-480 V three-phase systems. It uses external air cooling, supplies the shared DC link and includes a DRIVE-CLiQ cable.

Manufacturer	Siemens
Order Number	6SL3131-6TE25-5AA3
Product Family	SINAMICS S120
Module Type	Smart Line Module
Nominal Line Input	3-phase 380-480 V AC
Permissible Line Range	342-528 V AC
Line Frequency	47-63 Hz
Rated Infeed Power	55.0 kW
S6 Infeed Power	71.0 kW
Maximum Infeed Power	91.0 kW
DC-Link Current at 600 V	92.0 A
DC-Link Current at 540 V	105.0 A
S6 DC-Link Current	138.0 A
Maximum DC-Link Current	178.0 A
Rated Input Current at 400 V	90.0 A
DC-Link Capacitance	1,880 microfarads
Construction	Booksize
Cooling	External air cooling
Degree of Protection	IP20 / UL open type
Maximum Power Loss	0.665 kW
Commercial Status	Spare part

• Supplies a 55 kW Smart Line infeed to the modular S120 DC link.
• Provides 92 A at 600 V DC and 105 A at the proportional 540 V DC operating point.
• Supports the documented 71 kW S6 and 91 kW maximum infeed levels.
• Moves heat through an external-air cabinet path in a 200 mm booksize width.
• Provides DRIVE-CLiQ integration for system identification and diagnostics.

• Integrates with SINAMICS S120 booksize DC-link and 24 V busbars under Siemens configuration rules.
• Requires a cabinet arrangement designed for external cooling and the 200 mm module width.
• Line-side protection and conductor sizing must suit the documented 90 A input current at 400 V.
• The 6TE25 Smart Line identifier must not be confused with the 7TE25 Active Line article.
• Check Control Unit, firmware, drive topology and allowed DC-link capacitance before exchange.

• Siemens describes the exact order number as a spare part; verify the installed nameplate and full 5AA3 suffix.
• The 6SL3131-7TE25-5AA3 Active Line Module uses a different line-infeed principle and is not a direct functional replacement.
• The internally cooled 6SL3130 Smart Line version requires a different cabinet thermal design.
• Preserve the external heat-sink opening, line protection and DC-link arrangement during replacement.
• After service, validate precharge, DC-link voltage, line current and every connected motor module.

Is 6SL3131-6TE25-5AA3 a Smart Line or Active Line product?

It is a 55 kW Smart Line Module; the 6TE25 code must not be confused with the 7TE25 Active Line variant.

What current is delivered at 600 V DC?

The rated DC-link current is 92.0 A.

What is the module width?

The externally cooled booksize module is 200 mm wide.

What is the rated input current at 400 V?

Siemens documents a rated 90.0 A input current at 400 V.

Can the internally cooled version use the same cabinet opening?

Not automatically; internal and external cooling require different thermal and mechanical arrangements.

What should be retained before replacing the module?

Keep the full order suffix, drive project, cabinet cooling data and line-side protection details.