Siemens 3RT6026-1AP20 — SIRIUS S0 Contactor, Active Production
It mounts on 35 mm DIN rail per DIN EN 50022 via screw and snap-on, with ±180° rotation and ±22.5° tilt on a vertical surface, so it fits into tight or awkward panel layouts without forcing a re-spin of the gland plate. Rated for AC-3 switching up to 690 V.
Width is 45 mm, depth 97 mm, height 85 mm — the S0 footprint. Accepts 2x (0.5…1.5 mm²) or 2x (0.75…2.5 mm²) solid or stranded, and AWG 16…12 or 14…8 for main contacts. Operating temperature range -25…+60 °C, storage -55…+80 °C. The 60 °C ceiling is the one to watch for panel derating — the motor power figures at 60 °C (23 kW at 400 V, 13.3 kW at 230 V) are the real-world limits, not the 40 °C catalogue numbers.
Substance prohibitance date of 05/01/2012 covers RoHS and REACH compliance; the part was manufactured after that cutoff, so it meets the EU substance restrictions without a separate declaration hunt.
Switching Performance and Mechanical Life
Rated for 5,000 operating cycles per hour at AC, with AC-1 maximum 1,000 1/h, AC-3 maximum 750 1/h, and AC-4 maximum 250 1/h. The AC-3e maximum also 750 1/h. Mechanical life is 10,000,000 cycles typical — a critical-spare candidate for high-cycle conveyor or pump starts. Coil draws 0.25 A at 50 Hz and 0.28 A at 60 Hz at 240 V. Auxiliary contact ratings: 6 A at 24 V, 1 A at 110 V, 0.3 A at 220 V, 10 A at 230 V, 3 A at 400 V, 1 A at 690 V — covers control circuits from 24 VDC to 690 VAC.