This is a current-production part (lifecycle stage: current), so it's still the standard BOM line — no last-time-buy clock to manage.
The contactor body measures 70 mm wide, 140 mm high, and 152 mm deep — that's the S3 footprint, which determines DIN-rail spacing and enclosure depth. Solid conductors from 2.5 mm² up to 16 mm² are accepted on the main terminals; stranded can go as high as 70 mm². The coil terminals accept 2x (0.5... 2.5 mm²) solid or stranded. Rated coil voltage is 20–33 V — a 24 VDC nominal supply sits right in the middle. Inrush current peaks at 6.5 A; holding power is 3.5 VA at both 50 Hz and 60 Hz. Pick the control transformer and fuse accordingly. Switching frequencies: up to 1000 operations per hour under AC-3 duty (typical motor switching), 900 ops/h under AC-1 (resistive loads), 400 ops/h under AC-2, and 300 ops/h under AC-4 (plugging / inching). The AC-3e rating also allows 1000 ops/h. Auxiliary contacts are integrated, and the contactor can break up to 10 A at 24 V, 2 A at 48 V and 60 V, and 1 A at 110 V — enough for small control loads.