What this reversing starter carries
The Siemens 3RA2210-0KD15-2AK6 is a SIRIUS 3RA2 non-fused load feeder configured as a reversing starter in size S00. It ships as a pre-assembled unit with a 3RT2015-1AK62 contactor, a 3RA1921-1DA00 link module, and an 8US1251-5DS10 busbar adapter — everything needed to drop into a 60 mm busbar system. Rated for AC-3 motor switching up to 690 V, the unit delivers 370 W at 400 V, 550 W at 500 V, and 750 W at 690 V. On 460/480 V and 575/600 V supplies it's rated 0.5 hp. The overload release is thermal bimetallic, so ambient temperature affects the trip curve — mounted in a warm cabinet, expect some derating. Pollution degree 3 (industrial environment) is the design baseline.
Snaps directly onto 60 mm busbar systems — no separate DIN rail required for the main power connection. The supplied busbar adapter (8US1251-5DS10) handles the mechanical clip and electrical tap. Mounting position is vertical only; the unit needs 20 mm clearance upward, 10 mm downward, and 9 mm to the side. Zero clearance forward and backward. Dimensions are 155.1 mm deep, 90 mm wide, 200 mm tall. Main contact wiring accepts 0.5 to 4 mm² stranded, or 2× (0.75 to 2.5 mm²).