What this contactor is and where it fits
The Siemens 3RT2326-1AV00 is a SIRIUS contactor in the Size S0 frame — a 60 mm wide, 97 mm deep unit built for switching motor loads in industrial control panels. It mounts via screw or snap-on onto 35 mm DIN rail per DIN EN 60715, and the mounting position allows ±180° rotation on a vertical surface plus ±22.5° tilt forward or backward, giving panel builders flexibility in tight enclosures.
What the ratings mean for fit
Size S0 is the mechanical frame that governs terminal capacity and thermal dissipation — it accepts stranded conductors up to 10 mm² and solid conductors from 0.5 to 2.5 mm² on the main circuit, with auxiliary contacts wired through 0.5 to 1.5 mm² solid or stranded. The auxiliary switch is rated for AC coil voltage and carries a range of contact ratings depending on the switched voltage: 10 A at 24 V and 230 V, 6 A at 60 V, 3 A at 400 V, down to 0.1 A at 600 V. These are the make/break capacities for the auxiliary circuit — not the main motor current — and they determine whether this contactor can drive the PLC input or relay load you need to switch.
Panel integration notes
Clearance requirements: 10 mm upwards, 10 mm forwards, 10 mm downwards, and 6 mm at the side. The coil connection uses screw-type terminals. Arcing time is 10 to 10 ms at AC, with a switching frequency of 0.25 at 50 Hz. These numbers matter when laying out the gland plate and ensuring adequate fill factor — the 60 mm width and 97 mm depth are the dimensions that determine rail spacing in the enclosure.