The 6SL3520-1XC03-0AA0 completes the 1XC03 communication variant set at 3 kW FSB fanless — AA0 I/O Control joins AF0 (PROFINET) and AB0 (Standard I/O), making 1XC03 the second fully-complete 1XC code (alongside 1XC00). It delivers 7.7 A HO (15.4 A LO) in the fanless FSB enclosure (425 × 180 × 134 mm, 7.12 kg) with natural convection cooling. AA0 provides basic digital/analog terminal control — start/stop, direction, and analog speed reference without a fieldbus — designated for SIMATIC control systems. Operates at 380–480 V three-phase, compatible with IE2/IE3/IE4 motors across 0–550 Hz, IP65 sealed.

1XC family now spans FSA through FSB — the complete picture

The C-connector "1X" prefix family now spans 0.37–4 kW across FSA and FSB — continuous coverage from the smallest G115D to the 4 kW fan-cooled transition, all with the C-connector interface. Every 1XC code confirmed so far carries all three communication variants.