The Siemens SIRIUS 3RV1935-5E is a 3-phase supply terminal designed to feed power from the top onto 3-phase busbars in a Type E self-protection combination motor controller. It is sized for the S2 frame of the 3RV circuit breaker series and uses fork-shape connections for the incoming supply.
This part is a phased-out product. The official Siemens preferred successor is the 3RV2935-5E, part of the SIRIUS 3RV2 series. If you are maintaining an existing panel with the 3RV1 S2 busbar system, this terminal is the correct fit; for new designs, the 3RV2-series terminal is the current-production drop-in.
This terminal mounts onto the S2 busbar system used with 3RV1 circuit breakers. The fork-shape connections accept the incoming 3-phase conductors from above. It is a panel-integration accessory, not a standalone device — it completes the busbar feed path for the motor controller assembly.