What It Is and What It Does
The Siemens SIRIUS 3RT1016-1BB41-ZW98 is a size S00 power contactor with a 24 VDC coil, rated for 10 A at 24 V and 5.5 kW at 690 V. It's designed for switching motor loads and other inductive or resistive circuits in control panels, with screw-type terminals for the main circuit and a snap-on mount onto 35 mm DIN rail per EN 50022.
Key Ratings and What They Mean for Fit
The 24 VDC coil draws 3.3 W for both closing and holding, so the power supply needs to sustain that inrush without droop. The AC-4 rating at 400 V is 8.5 A — that's the switching current for reversing or inching duty, which is the tougher thermal cycle than AC-3. For standard motor start/run (AC-3), the 400 V rating is 4 kW. The 10 A at 24 V rating covers low-voltage DC loads, like PLC outputs or signal lamps. The contactor is rated for 30 million mechanical operations typical, so it's built for high-cycle applications like conveyor sorters or packaging lines. The IP20 front and terminal protection means it's safe for finger contact inside an enclosure but not for washdown environments. Operating temperature range is -25 to +60 °C, with a maximum operating altitude of 2000 m. Pollution degree 3 means it's suitable for industrial environments with conductive dust or humidity.
Mounting and Integration
Snap-on mounting onto 35 mm standard mounting rail per DIN EN 50022. Width is 45 mm, height 57.5 mm, depth 72 mm. Side-by-side mounting is allowed with 6 mm spacing at the side. The screw terminals accept 2x (0.5 to 1.5 mm²) solid, 2x (0.75 to 2.5 mm²) stranded, or max 2x (0.75 to 4 mm²) — also AWG 2x (20-16), 2x (18-14), 1x 12 for the main contacts.