The Siemens 3RT1015-2AG14 is a SIRIUS power contactor in the compact Size S00 frame (45 mm wide, 60 mm tall, 114 mm deep) — the smallest footprint in the SIRIUS family, sized for panel density where every millimeter of DIN rail counts. It switches motor loads up to 3 kW in AC-2 duty at 400 V and handles 6.5 A in AC-4 reversing or plugging service, so it's suited for conveyor drives, pump starters, and small compressor controls inside a standard 35 mm DIN-rail enclosure per DIN EN 50022.
The 24 VDC coil pulls in reliably at 10 A rated current (AC-12 maximum), and the contactor holds its seal across the full operating range of -25 to +60 °C. Spring-loaded terminals accept 2x (0.25 to 2.5 mm²) solid or stranded copper — no ferrule needed, no screw torque to verify. Side-by-side mounting is permitted (zero gap between contactors), which keeps the rail density high. For Type 2 coordination (no-weld requirement) the upstream fuse must be gL/gG 20 A; for Type 1 coordination (allow contactor damage) a 35 A gL/gG fuse is the limit.