Siemens 3RT6016-1AQ02 SIRIUS Power Contactor — 24 VDC Coil, Size S00
The Siemens 3RT6016-1AQ02 is a SIRIUS-brand power contactor in Size S00, with a 24 VDC coil rated at 6 A. It switches motor loads up to 7.5 kW at 230 V, 13 kW at 400 V, and 22 kW at 690 V — the 400 V figure is the one most panel builders will size against for standard three-phase induction motors across Europe and Asia. The coil draws 0.25 A at both 50 Hz and 60 Hz, so the control transformer sizing is straightforward — no derating needed when the line frequency changes. Mechanical life is rated at 30,000,000 operating cycles, with maximum switching rates of 10,000 cycles per hour on general AC duty, 1,000/h under AC-1 (resistive loads), 750/h under AC-3 (squirrel-cage motors), and 250/h under AC-4 (plugging/inching). That AC-4 limit is the one to watch if the application does frequent reversing or jogging — it governs the thermal stress on the contacts.
Mounting and Integration
Mounts via screw or snap-on onto 35 mm DIN rail per DIN EN 50022. Width is 45 mm, depth 73 mm, height 57.5 mm — three units fit in a standard 145 mm wide DIN section with room for a terminal block alongside. Side-by-side mounting is permitted with no derating gap. Mounting position is flexible: +/-180° rotation on a vertical surface, and can be tilted forward or backward by +/-22.5° on a vertical surface. That covers most enclosure layouts without needing a special bracket. Screw-type terminals on the main circuit accept 2x (0.5 to 1.5 mm²), 2x (0.75 to 2.5 mm²), or 2x 4 mm² solid or stranded. Minimum cross-section at 40 °C ambient is 4 mm²; at 60 °C ambient it drops to 2.5 mm² — a useful derating rule for panels running hot near drives or transformers.
Environmental and Compliance
Operating temperature range is -25 to +60 °C; storage range is -55 to +80 °C. Pollution degree 3 means it is rated for industrial environments with conductive pollution or dry non-conductive pollution that becomes conductive due to condensation — standard for uncoated boards in control panels.