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PME120/RHD250–RHD4000 Contrac Electrical Rotary Actuator Operating Instruction

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This document provides comprehensive operating instructions for the ABB PME120 and RHD250 to RHD4000 (Contrac) series electrical rotary actuators, which are compact devices used to operate final control elements like valve flaps and ball valves with a 90° rotary movement. It covers safety, design, installation, electrical connections, commissioning, maintenance, and troubleshooting for these lever-actuated, electronically controlled actuators.

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