SIRIUS direct online starter — S0 frame, 5 A AC-3
The 3RA2120-1FA24-0BB4: It ships with the contactor (3RT2024-1BB40) and link module (3RA2921-1BA00) pre-assembled — no separate wiring between the two, which cuts panel build time. The 24 V DC coil is standard for modern PLC-driven control circuits; the Class 10 trip curve protects standard three-phase motors during start-up without nuisance tripping.
Mounting and panel fit
Mounts vertically on 35 mm DIN rail with a screw-and-snap-on fastening — no tools needed for the rail clip, but the screw secures it against vibration in high-shock panels. The S0 footprint is 45 mm wide, 193 mm tall, and 107 mm deep — it fits standard 200 mm deep enclosures with room for wiring ducts. Clearance requirements: 50 mm above, 20 mm below, 20 mm to the sides, and 20 mm forward for cable entry.
Rated for the line — AC-3 and thermal limits
At 480 V and 600 V the rating holds at 5 A, so the motor full-load current must stay at or below that across the voltage range. Operating temperature range is -20 to +60 °C with the same compensation band — no derating needed for most indoor panel environments. Storage and transport range is -50 to +80 °C.