The Siemens 3RV1917-6A is a cover for the 3-phase busbar in the 3RV1917 series, sold in a multi-unit pack of 10. Its lifecycle stage is listed as current, but the manufacturer's description flags it as a phased-out product with a preferred successor type of 3RV2917-6A.
The official successor is the SIRIUS 3RV2 series, specifically the 3RV2917-6A. For procurement, this means the 3RV1917-6A is no longer in regular factory production and is sourced through independent distribution channels against an RFQ.
This is a protective cover for the 3-phase busbar used in the 3RV1917 series of motor starter protectors and circuit breakers. It mounts directly onto the busbar assembly within a control panel, providing insulation and touch protection for the live busbar connections. The multi-unit packaging of 10 covers is intended for panel builders or OEMs wiring multiple starters in a row.