Integrator note — SIRIUS 3RT2017-1BE42
The Siemens 3RT2017-1BE42 is a SIRIUS power contactor in the Size S00 frame, designed for switching motor loads and resistive circuits in control panels. The 24 VDC coil pulls in reliably; the screw-type terminals on the magnet coil accept solid or stranded wire from 0.5 to 4 mm², with dual-wire entries for 2x (0.5...1.5 mm²), 2x (0.75...2.5 mm²), or 2x 4 mm². Rated at 10 A at 24 V for DC switching, it also carries 2 A at 48 V and 60 V, 1 A at 110 V, 0.9 A at 125 V, and 0.3 A at 220 V — so the DC load curve drops fast above 24 V; size the load accordingly. Mounts via screw or snap-on onto 35 mm DIN rail per DIN EN 60715, with a 45 mm width that fits standard panel spacing. Clearance requirements: 10 mm upwards, 10 mm forwards, 10 mm downwards, and 6 mm at the side. The mounting position allows ±180° rotation on a vertical surface and ±22.5° tilt forward/backward — useful for tight enclosures where the rail isn't perfectly oriented.
Duty-cycle and switching frequency
Switching frequency depends on the duty category: AC-1 (resistive) allows up to 1,000 operations per hour, AC-2 and AC-3 (motor starting/running) cap at 750 ops/h, AC-3e (enhanced motor) also 750 ops/h, and AC-4 (plugging/inching) drops to 250 ops/h. The arcing time runs 10 to 15 ms, and the DC switching time is 7 to 13 ms — fast enough for most interlocking sequences but not for high-speed counter applications. The main contact rating range is 20 to 12 (likely a code for current range in amps depending on duty), and the contactor carries an auxiliary switch for feedback or status signaling. Mechanical life typical is 30 million operations — a solid figure for a Size S00 frame.
Lifecycle and sourcing reality
Operating temperature range is -25 to +60 °C during operation, with storage from -55 to +80 °C — the storage limit covers handling and shipping, not running conditions. The contactor is rated for use in standard industrial environments; no IP rating is listed, so it expects panel protection from dust and moisture.
Panel integration checklist
DIN rail: 35 mm per DIN EN 60715, screw or snap-on. Width 45 mm, depth 73 mm, height 58 mm. Leave 10 mm clearance above, below, and forward; 6 mm at sides for heat dissipation and wiring access. Wiring: screw-type terminals on coil and main contacts. Solid/stranded 0.5...4 mm² single wire, or dual 2x (0.5...1.5 mm²), 2x (0.75...2.5 mm²), 2x 4 mm². Torque not specified in evidence — use standard M3.5 screw terminal torque (0.8-1.2 Nm) typical for this class.