SIRIUS 3RT1016-1BB42-ZX95 — power contactor, Size S00, 24 VDC coil
The Siemens 3RT1016-1BB42-ZX95 is a SIRIUS power contactor in Size S00, built for switching motor loads in control panels. It carries a 24 VDC coil with 3.3 W closing and holding power, and mounts via screw or snap-on onto 35 mm DIN rail per EN 50022. Rated for 5.5 kW at 690 V AC and 4.5 kW at 500 V, with AC-2 duty at 400 V delivering 4 kW. The AC-4 rating at 400 V is 8.5 A, covering reversing or inching applications. Coil pickup is 0.85 x rated voltage, dropout at 1.1 x rated — the standard SIRIUS curve. Operating temperature range -25 to +60 °C, pollution degree 3, altitude up to 2000 m. IP20 on the front and terminals — suitable for enclosed panel installation, not washdown environments.
Panel integration and wiring
Width is 45 mm, height 57.5 mm, depth 72 mm — fits a standard DIN-rail footprint with 6 mm side clearance to adjacent devices. Side-by-side mounting is allowed, so no forced spacing gaps on the rail. Main circuit terminals are screw-type, accepting 2x (0.5 to 1.5 mm²), 2x (0.75 to 2.5 mm²), and max 2x (0.75 to 4 mm²) solid or stranded. AWG equivalents: 2x (20 to 16), 2x (18 to 14), 1x 12. The coil terminals share the same screw-clamp design.
Coordination and protection
Type 2 coordination requires a gL/gG fuse rated 20 A; Type 1 coordination allows up to 35 A gL/gG. The contactor is rated for 30,000,000 mechanical cycles typical — a high-life design for frequent switching in conveyor or pump duty. Auxiliary contact ratings: 10 A at 24 V, 6 A at 230 V, 3 A at 400 V, 2 A at 60 V, 1 A at 110 V, 0.3 A at 220 V. The AC-12 maximum operating current is 10 A.