Lifecycle and Sourcing Reality
The 3RT1023-1AP80-0KR0-ZX95: This is a phased-out product — the manufacturer lists its lifecycle stage as current, but the description flags it as a special-purpose device that is no longer in standard production. The official successor is the SIRIUS 3RT2 series.
What the Ratings Mean for Fit
The AC-3 rating of 9 A at 400 V tells you this contactor is sized for switching three-phase induction motors up to 4 kW — the standard duty class for squirrel-cage motors under IEC 60947-4-1. The 230-240 V AC coil means it pulls in on a standard control voltage; the 50/60 Hz label confirms it works on either mains frequency without derating.
Panel Integration
Size S0 footprint snaps onto a DIN rail in the control cabinet. Screw terminals accept 0.2–2.5 mm² stranded or solid wire; strip length of 8 mm avoids whiskers under the clamp. The 3-pole main contacts handle the motor circuit; auxiliary contact blocks can be side-mounted for feedback or interlocking.