What This Contactor Is and Where It Fits
The Siemens SIRIUS 3RT2016-2AP02-ZW97 is a Size S00 power contactor with a 24 VDC coil and spring-type terminals — a compact 45 mm wide unit designed for screw and snap-on mounting onto 35 mm DIN rail per DIN EN 60715. It belongs to the SIRIUS family, Siemens' modular contactor line for motor switching and general load control in industrial control panels. The spring-type terminals accept solid or stranded conductors from 0.5 to 4 mm² (2x per clamp), and the mounting position is flexible: +/-180° rotation on a vertical surface, plus +/-22.5° tilt forward/backward. This gives panel builders room to fit it into tight enclosures without rewiring constraints.
Switching Capability and Duty Cycles
Maximum operating frequency varies by duty: 1,000 switching cycles per hour under AC-1 (resistive load), 750/h under AC-2 and AC-3 (motor starting/running), and 250/h under AC-4 (plugging/inching). The AC-3e rating matches the AC-3 limit at 750/h. These limits define the thermal cycling the contactor can sustain — exceeding them accelerates contact wear. Auxiliary contact ratings are provided across multiple voltages: 10 A at 24 V, 2 A at 48 V and 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. The arcing time spans 10 to 15 ms. These values matter for control circuit coordination — the auxiliary switch can handle pilot duty loads within those limits.
Panel Integration Notes
Physical footprint: 45 mm wide, 70 mm high, 73 mm deep. Clearance requirements: 10 mm upwards, 10 mm forwards, 10 mm downwards, and 6 mm at the side. These spacing figures govern heat dissipation and arc flash clearance in a DIN-rail enclosure. Operating temperature range is -25 to +60 °C; storage range is -55 to +80 °C. The storage limit is a handling spec, not an operating one — the contactor can survive colder warehouse conditions than it can run in.