R911253159 is part of the DKC Drive Controllers Series by Indramat Drives.
Communication System: SERCOS Interface Connection: Three-Phase Power Line with AC 380...480 V, ±10 % Feedback System: Indirect Position Detection Cooling System: Internal Blower Operational Ambient Temperature: +0 °C...+45 °C Power Supply Connection: DC24V or NTM Power Supply Unit