The Siemens SIRIUS 3RT1316-2BM40 is a size S00 power contactor with four normally-open main contacts, spring-loaded terminals for the main circuit, and a rated operational current of 10 A in AC-12 duty. Its AC-2 motor-switching capability is 4 kW at 400 V, making it a direct fit for reversing or plugging duty on small induction motors up to that power.
Mounting and panel integration
Mounts via screw or snap-on onto 35 mm DIN rail per DIN EN 50022. The 45 mm width and 72 mm depth fit standard panel layouts; side-by-side mounting is permitted with 6 mm spacing to the side. IP20 on the front and at the terminals means it is protected against finger contact but not washdown — suitable for enclosed control panels.
Ratings and coordination
Rated for pollution degree 3, operating ambient -25 to +60 °C, and altitude up to 2 000 m without derating. For type 1 coordination a 35 A gL/gG fuse is required; for type 2 coordination a 20 A gL/gG fuse. The DC magnet coil draws 3.3 W holding power — verify the control transformer sizing for multiple contactors on the same 24 VDC supply.
Lifecycle and sourcing
This part carries a current lifecycle status. Quoted to order against an RFQ through independent distribution; availability and current pricing confirmed at quote time. No official successor has been announced — the 3RT1316-2BM40 remains the active order code for this configuration.