The 6SL3520-1XC04-0AA0 is the I/O Control variant of the 1XC04 C-connector SINAMICS G115D at 4 kW for SIMATIC control systems — 10.2 A HO (20.4 A LO) in the FSB fan-cooled enclosure (425 × 180 × 169 mm, 7.52 kg) with an integrated cooling fan. AA0 completes the 1XC04 communication variant set alongside AF0 (PROFINET) and AB0 (Standard I/O) — all three G115D communication interfaces are now confirmed at 1XC04. AA0 provides basic digital/analog terminal control without a fieldbus: start/stop, direction, and analog speed reference. Operates at 380–480 V three-phase, compatible with IE2/IE3/IE4 motors across 0–550 Hz, IP65 sealed.

1XC04 communication variants — complete set

All three share the identical 4 kW FSB fan-cooled hardware, C-connector, 10.2 A HO — the communication suffix determines the control interface. The 1XC04 is the only 1XC code at 4 kW, parallel to 0XC04 in the "0X" C-connector path.