Technical Parameters Parameter / Feature Specification / Detail Model / Type AX300‑30‑11 — 3‑pole AC contactor Main Contacts (Power) 3 × Normally‑Open (NO) contacts (3P) Auxiliary Contacts 1 × Normally‑Open (NO) + 1 × Normally‑Closed (NC) auxiliary contact block Rated Operational Voltage (Main Circuit) Up to 1000 V (IEC insulation rating) — nominally up to ~690 V AC for typical use Conventional Free‑air Thermal Current (Iₜₕ) 250 A (at 40 °C, open contactor) Rated Operational Current, AC‑1 (General Load) Up to 500 A @ 690 V (40 °C), derating to 400 A @ 55 °C or 325 A @ 70 °C Rated Operational Current, AC‑3 (Motor Load) • 305 A @ 415–440 V • 290 A @ 500–690 V (at 55 °C) Rated Motor / Load Power, AC‑3 (Pₑ) • 160 kW @ 415 / 440 V • 200 kW @ 500 V • 250 kW @ 690 V • 90 kW at 220–240 V AC Making / Breaking Capacity (AC‑3) Making capacity: 10 × Ie; Breaking capacity: 8 × Ie (per IEC 60947‑4‑1) Short‑Time / Withstand / Inrush Current Ratings e.g. 10 s withstand: ~ 2440 A; 1 s: ~ 3050 A; other ratings per spec sheet depending on ambient & conditions Rated Frequency (Main Circuit) 50 / 60 Hz Control/Coil Voltage Variants Multiple coil‑voltage variants available (e.g. 220‑230 V AC, 110 V AC, 24 V AC/DC depending on order code) Terminal / Connection Type Bar‑type / busbar‑type main terminals (suitable for heavy cabling or busbars); screw‑type auxiliary‑contact terminals Mechanical Durability / Endurance Approx. 5 million mechanical operations (heavy‑duty rating) Typical Applications Three‑phase motor start/stop control; large motor switching; heavy‑load control; industrial machinery; power distribution panels; heavy‑duty AC load switching