SIRIUS S2 direct-on-line starter — 36 A AC-3, CLASS 10
The Siemens 3RA2130-4PA35-0NB3 is a SIRIUS direct-on-line starter in Size S2, combining a 3RT2035-1NB30 contactor and a 3RA2931-1AA00 link module into one factory-assembled unit.
What ships in the carton — kitting checklist
Main circuit terminals are screw-type, rated for the full 36 A AC-3 current — no crimp tool needed for field wiring, just a screwdriver.
Panel fit — DIN rail footprint and clearances
Mounts via screw or snap-on to two parallel 35 mm DIN rails — the 55 mm width and 150 mm depth fit a standard S2 feeder footprint, with 274 mm height leaving room for cable entry below. Clearance requirements: 50 mm upward, 32 mm forward, 10 mm downward, 10 mm at the sides, and 0 mm backward — the back can sit flush against the panel backplate, saving depth in shallow enclosures. Mounting position is vertical or horizontal — the starter operates within spec in either orientation, giving layout flexibility in crowded panels.
Environmental limits and compliance
Operating temperature range is -20 to +60 °C with temperature compensation active across the same band — the overload curve adjusts automatically to ambient conditions, so the trip point stays accurate in a hot panel or cold warehouse. Storage and transport range is -50 to +80 °C — the starter can sit in an unheated warehouse or truck without damage.