What this SIRIUS direct starter packs
The 3RA2110-0FD15-1FB4 is a Siemens SIRIUS direct online starter in size S00 — a pre-assembled combination of a contactor, thermal overload relay, and circuit-breaker in one unit that snaps onto 60 mm busbar systems. It ships with the 3RT2015-1FB41 contactor, 3RV2011-0FA10 circuit-breaker, 3RA1921-1DA00 link module, and 8US1251-5DS10 busbar adapter — all screw-type terminated for the main and control circuits.
Ratings and operating envelope
Rated 120 W at 400 V and 0.5 A at 480 V, with a maximum AC-3 switching voltage of 690 V, operating at 50 to 60 Hz. The control coil is rated 24 V DC — confirm your control transformer or PLC output matches this voltage before wiring. Ambient operating range is -20 to +60 °C; storage and transport tolerance extends from -50 to +80 °C. Mounting position is vertical only. Overload protection uses a thermal bimetallic element; short-circuit detection is magnetic. An auxiliary switch can be added via the product extension slot.
Mounting and panel fit
The unit measures 155 mm deep, 45 mm wide, and 200 mm tall — a compact footprint for size S00. It snaps directly onto 60 mm busbar systems, not onto DIN rail. Clearance requirements: 50 mm above, 20 mm in front, 20 mm at the sides, 10 mm below, and 0 mm behind the unit.