The SINAMICS G120X 6SL3230-3YE28-1UB0 is a 15 kW frequency converter in the FSC frame size, configured with DC terminals, an unfiltered output stage, and an IOP-2 operator panel. It is designed for pump, fan, and compressor applications in water/wastewater, building technology, and HVAC sectors requiring reliable variable-speed control at 380–480 V 3 AC.

What does the 1UB0 suffix configuration include?

The four-character suffix 1UB0 decodes as three independent options: DC terminals present (position 1: 1), unfiltered output with no integrated EMC filter (position 2: U), and full-feature configuration with IOP-2 graphical operator panel (position 3: B). The DC terminals enable direct connection of a du/dt filter for motor winding protection on long cable runs. The unfiltered output means external EMC measures must be applied where conducted emissions compliance is required. The IOP-2 panel provides a local graphical interface for commissioning, parameterization, and diagnostics at the drive.

How does the FSC frame compare to other G120X frame sizes?

At 140 × 295 × 209 mm (W × H × D), the FSC frame houses the 15 kW power rating in a compact footprint suited to control cabinets with limited depth. It is one step below the FSD frame (200 × 472 × 239 mm) used for the 18.5 kW variant. Both share the same IP20 protection rating and 110%/60 s overload profile, but the FSC frame's shallower depth — 209 mm versus 239 mm — can be the deciding factor in depth-constrained enclosures.