The Siemens 3RT1016-2EF04-0KS0-ZX95 is a SIRIUS power contactor in size S00, built for switching motor loads and resistive circuits in control panels. It carries a 24 VDC coil and spring-loaded terminals for the main current circuit, rated 10 A at 24 V and 8.5 A in AC-4 duty at 400 V. Mounting is screw and snap-on onto a 35 mm standard mounting rail per DIN EN 50022, so it integrates directly into a DIN-rail panel without extra brackets.
Ratings and what they mean for fit
The AC-4 rating of 8.5 A at 400 V is the key figure for reversing or inching duty — that's the current the contactor can break under frequent plugging or jogging, not just steady-state running. For resistive loads (AC-1) the limit is higher, but for motor switching the AC-4 number governs the real-life service life. The coil operates at 24 VDC with a rated current of 10 A at 24 V. The integrated RC surge suppressor means you don't need an external snubber for the coil, which simplifies wiring and reduces panel clutter. Spring-loaded terminals accept 2x (0.25... 2.5 mm²) solid or stranded wire — that's up to 14 AWG, enough for most control and small power circuits. The IP20 finger-safe protection on the front and terminals means it's safe for open-panel mounting without additional shrouding.
Lifecycle and sourcing
The 3RT1016-2EF04-0KS0-ZX95 is a fast mover for MRO and panel-build applications. Keep it on the shelf as a critical spare for any 24 VDC contactor requirement in size S00. Sourced and quoted to order against an RFQ through independent distribution; availability and current pricing confirmed at quote time.
Integration notes
Size S00 means a 45 mm width and 114 mm depth — fits standard 45 mm-wide DIN-rail slots. Side-by-side mounting is allowed, with a minimum 6 mm gap to adjacent devices for heat dissipation. For short-circuit protection, the manufacturer specifies a gL/gG fuse rated 20 A (type of coordination 2). That's the fuse size to order alongside the contactor if you need coordinated protection. The contactor is rated for operation up to 2000 m altitude and ambient temperature -25 to +60 °C during operation. Pollution degree 3 means it's suitable for industrial environments with conductive dust or occasional condensation.