Siemens 3RT2015-2BE42 SIRIUS Power Contactor — Size S00, 24 VDC Coil, Spring-Terminal
The Siemens 3RT2015-2BE42 is a SIRIUS power contactor in the size S00 frame, designed for switching motor and resistive loads in control panels. It mounts via screw or snap-on onto 35 mm DIN rail per DIN EN 60715, making it a direct fit for standard industrial enclosures. The coil is rated at 24 VDC, and the main contacts carry 10 A at 24 VDC. For DC switching at other voltages, the rated current drops to 2 A at 48 V or 60 V, 1 A at 110 V, 0.9 A at 125 V, 0.3 A at 220 V, and 3 A at 400 V. At 230 V AC, the contactor is rated for 0.75 hp motor load. Termination uses spring-type terminals (cage-clamp style), accepting solid or stranded wire from 0.5 to 4 mm², or 2x (0.5 to 4 mm²) per clamp. This speeds panel wiring versus screw terminals and provides a vibration-resistant connection. Mechanical life is rated at 30,000,000 operations typical. Maximum switching frequency varies by duty: 1,000 ops/h at AC-1 (resistive), 750 ops/h at AC-2 or AC-3 (motor start/run), and 250 ops/h at AC-4 (plugging/inching). The DC operating time (coil pickup to main contact closure) is 7 to 13 ms, with arcing time 10 to 15 ms. An auxiliary switch is built in (1 N/O + 1 N/C, 20-12 range per the main contact designation). Operating temperature range is -25 to +60 °C; storage range is -55 to +80 °C. Mounting position allows ±180° rotation on a vertical surface and ±22.5° tilt forward/backward. Required clearances: 10 mm upward, downward, and forward; 6 mm at the sides.