The 6SL3230-3YE18-1UP0 is a 3 kW SINAMICS G120X converter in the compact FSA frame — 73 mm wide, 3.9 kg, half the cabinet width of the FSB 4 kW variant. It delivers 9.1 A LO rated output with DC-link terminals for braking resistor connection and an Unfiltered EMC configuration for external filtering flexibility. The FSA frame is the smallest G120X enclosure: three of these fit in the same cabinet width as two FSB drives.

What changes at the 3-to-4 kW G120X step?

At 4 kW, the G120X moves from FSA to FSB — doubling the width from 73 mm to 140 mm and increasing weight from 3.9 kg to approximately 7 kg. The current steps from 9.1 A to 10.5 A LO. For pump and fan applications at or below 3 kW, the FSA frame offers the highest cabinet density in the G120X range — important for multi-pump booster sets, cooling-tower fan arrays, and ventilation banks where cabinet real estate is the binding constraint.