What This Part Is and Where It Fits
The Siemens 3RT2015-2HB41 is a SIRIUS coupling contactor in the S00 frame size, designed to switch loads on command from a 24 V DC control circuit. It's a panel-mount component that snaps onto 35 mm DIN rail per DIN EN 60715, with spring-type terminals for the magnet coil — no screwdriver needed for the coil connection, which saves a few seconds per termination on a build.
Key Ratings and What They Mean for Your BOM
The 24 V DC coil is the control side; at that rated value the contactor carries 10 A on the main contacts. That's the headline switching current — enough for small motor loads, resistive heaters, or coupling duties in a control circuit. The S00 frame keeps the footprint tight: 45 mm wide, 70 mm tall, 73 mm deep, so it fits in a crowded DIN rail row without stealing space from the next device. Mechanical life is listed at 30 million operations typical, which is high for a contactor this size — it's built for frequent cycling in applications like conveyor interlocking or valve sequencing where the contactor sees thousands of cycles per shift. The spring-type terminals accept solid or stranded wire from 0.5 to 4 mm², or two conductors of the same range, which covers most control wiring gauges you'd run in a panel.
Mounting and Environmental Constraints
Mounting position is flexible: it can be rotated ±180° on a vertical surface, or tilted forward/backward ±22.5°, which helps when you're fitting it into an existing enclosure with odd panel geometry. Keep the specified clearances — 10 mm upwards, 10 mm forwards, 10 mm downwards, 6 mm at the side — to avoid heat buildup and arcing interference. Operating temperature range is -25 to +60 °C; storage range is -55 to +80 °C, so it handles warehouse extremes without issue.