SIRIUS 3RT2518-1AV00 — Size S00 Contactor with Auxiliary Contacts
The Siemens 3RT2518-1AV00 is a SIRIUS-brand contactor in the compact S00 frame size, 45 mm wide and 57.5 mm tall with a 73 mm depth.
Auxiliary Contact Ratings and Switching Capacity
The auxiliary switch handles 10 A at 24 V rated value, 10 A at 230 V rated value, 3 A at 400 V rated value, and derates to 0.1 A at 600 V rated value. At 48 V, 60 V, and 125 V rated values it carries 2 A; at 110 V rated value it carries 1 A; at 220 V rated value it carries 0.3 A; and at 440 V rated value it carries 0.8 A. These ratings define the maximum continuous current the auxiliary contacts can switch at each voltage level — useful for control circuits, signaling, or interlocking in the panel. Mechanical endurance is rated at 30,000,000 operating cycles typical, with a maximum switching frequency of 1,000 operations per hour at AC-1 duty and 10,000 operations per hour for DC switching.
Mounting, Wiring, and Clearance
Terminals accept solid or stranded conductors: 2x (0.5 to 1.5 mm²), 2x (0.75 to 2.5 mm²), or 2x 4 mm². The screw-type coil terminals match the main circuit connection style.