If you have questions about our products, Fill out the form below and we will answer any questions you have. Tips: Fields marked with*are required. ABB PM866K02 3BSE050199R2 Redundant Processor Unit Introduction The ABB PM866K02 3BSE050199R2 Redundant Processor Unit is engineered for industrial automation systems where both control performance and system availability are critical. As a redundant processor within the AC 800M controller *Your Name: *Your Email: *Your Name: *Vdcode: Submit