Siemens 3RT2026-2AK60 SIRIUS Power Contactor — Size S0, Spring-Terminal
Rated switching frequencies span AC-1 at 1,000 operations/hour, AC-2 and AC-3 at 750 ops/h, and AC-4 at 250 ops/h — the AC-4 figure governs reversing or inching duty where contact wear accumulates faster. The auxiliary switch block is factory-integrated, rated for 10 A at 24 V, 2 A at 48/60 V, 1 A at 110 V, 0.9 A at 125 V, 0.3 A at 220 V, 3 A at 400 V, and 0.6 A at 440 V — covering control-circuit voltages common in North American and European panels. Wire range accepts solid or stranded 1–10 mm² for the main circuit, and 2x (0.5–2.5 mm²) for auxiliary contacts.
Arcing time is 10 ms at AC. Coil operating power draws 0.25 VA at 50 Hz and 0.28 VA at 60 Hz.