What This Contactor Is and Where It Fits
The Siemens 3RT2016-2BB42-ZW97 is a SIRIUS power contactor in frame size S00, built for switching motor loads and resistive loads in industrial control panels. The 24 VDC coil with spring-type terminals means no screwdriver needed on the coil wiring — just strip and push. Rated 10 A at 24 V DC, it handles DC switching up to that current at the coil voltage, and the contactor carries a full set of DC ratings across 24 V through 400 V, so it's not limited to one voltage point.
Panel Fit and Mounting
Width is 45 mm, depth 73 mm, height 70 mm — this sits in a standard 35 mm DIN rail enclosure per DIN EN 60715, with screw or snap-on mounting. The mounting position is flexible: ±180° rotation on a vertical surface, plus ±22.5° tilt forward or backward. Clearance requirements are 10 mm upward, 10 mm forward, 10 mm downward, and 6 mm at the sides — tight enough for dense panels but worth checking before you lay out the rail.
Wiring and Terminals
Spring-type terminals on the coil and main contacts accept solid or stranded wire from 0.5 to 4 mm², and you can double up two conductors of the same size in one clamp. That's handy for daisy-chaining control power or paralleling feeds without extra terminal blocks.
Switching Life and Duty
Mechanical life is rated at 30 million operations typical, so this contactor will outlast most panels it goes into. Switching rates vary by duty: 1,000 cycles/hour for AC-1 (resistive), 750 for AC-2 and AC-3 (motor starting and running), and 250 for AC-4 (plugging and inching). The AC-3e rating also sits at 750 cycles/hour. Arcing time runs 10 to 15 ms, and DC operating time is 7 to 13 ms — numbers to keep in mind if you're coordinating with a PLC scan cycle or a safety relay timing window.
Environmental Range
Operating temperature spans -25 to +60 °C, storage from -55 to +80 °C. That covers most indoor panel environments and unheated warehouses. The auxiliary switch is built in, so you don't need a separate add-on for feedback or status indication.