Star-delta contactor assembly — what ships in the box
The 3RA2426-8XF32-2AL2 is a pre-assembled SIRIUS contactor assembly for star-delta (wye-delta) motor starting — it ships with three contactors and the interconnecting RS kit already mounted on a common base plate. The supplied contactors are two 3RT2027-2AL20 units (line and delta legs) and one 3RT2026-2AL20 (star leg), wired for a 22 kW motor at 400 V, 50/60 Hz.
Mounting and wiring — DIN rail or screw-fixed, spring-clamp terminals
Dimensions are 135 mm wide × 114 mm high × 171 mm deep — the S0 contactor footprint fits standard panel layouts with 6 mm clearance above, below, and to the sides, and 0 mm backward clearance.
Environmental and mechanical ratings
The assembly withstands shock at 13.5 g / 5 ms (AC) and 15 g / 5 ms (DC), with vibration resistance at 0.25 mm (50 Hz) and 0.28 mm (60 Hz). Mechanical life of the contactor is rated at 10,000,000 operating cycles typical. The assembly has three instantaneous main contacts and no auxiliary switch or bus communication extension.