Busbar for S2 Breakers — Panel Integration
The Siemens 3RV1935-1AA00-0FJ0 is a 3-phase busbar that connects two S2-frame circuit-breakers in a 55 mm division pattern, matching the footprint of Benedikt & Jaeger busbar systems. It feeds the line side of both breakers from a single incoming supply, eliminating individual jumper wiring between the units. Rated for the same current as the S2 breaker line, this busbar sits on the DIN rail behind the breakers. The 55 mm division aligns with standard S2 pole spacing, so the busbar fingers engage the breaker terminals without adapters. Verify the busbar current rating matches the upstream protection — the busbar itself is the current path, not a terminal block.
No pin-compatible alternative exists within the Siemens 3RV accessory family — the 55 mm division and S2 frame size are specific to this variant.