AF750-30-11_ABB_PRODUCT_吉林易择科技技术发展有限公司

Technical Specifications Parameter / Item Value / Description Poles / Contacts 3 main poles — 3 × NO (normally open) Auxiliary Contacts 1 NO + 1 NC (standard “‑11” auxiliary contact set) Frame / Series AF750 (AF series large-frame contactor) Main Circuit Rated Operational Voltage (Ue) Up to 1000 V AC (IEC standard) / up to 600 V AC (UL/CSA rating) Control (Coil) Voltage Range (Uc) Wide‑range coil: e.g. 100–250 V AC/DC; other coil variants available (e.g. 24–60 V DC or 48–130 V AC/DC depending on order code) Utilization / Ratings (AC‑1, general / resistive load) ~ 1050 A (for many coil variants) — general-purpose load rating Utilization / Ratings (AC‑3, motor duty / inductive load) Ie (AC‑3) ~ 750 A @ typical 400 V (three‑phase) motor supply Rated Power (Motor Load, AC‑3) ~ 400 kW (at 400 V, three-phase) — typical motor power rating for this contactor Insulation & Withstand Ratings Rated insulation voltage (Ui): 1000 V (IEC) / 600 V (UL/CSA) Impulse withstand voltage (Uimp): 8 kV Making / Breaking Capacity Making capacity (AC‑3): up to 10 × Ie Breaking capacity (AC‑3): up to 8 × Ie Short‑Circuit / Short‑time Withstand Capability E.g. withstands short-time currents — under specified conditions allowed up to several kA for short durations (exact value depends on wiring/system) Terminal / Connection Type Main circuit: lug/bar‑type terminals (bus‑bar capable) Auxiliary / coil terminals: screw / lug terminals Mechanical & Environmental Operating ambient temperature range: –40 °C to +70 °C (without overload relay) Storage temperature: –40 °C to +70 °C Max installation altitude without derating: 3000 m Protection rating: Coil terminals IP20; main terminals (when open) IP00 Design / Features - Electronically controlled wide‑range coil, tolerant to supply/control‑voltage variation - Built-in surge suppression, stable operation under voltage dips/sags - Modular block‑type design, supports auxiliary contact blocks and accessories - Suitable for motor starting, heavy load switching, distribution, bypass, and general industrial power circuits

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DESCRIBE

The ABB AF750‑30‑11 is a 3‑pole, block‑type industrial contactor from ABB’s AF series, designed for three‑phase motors and general power‑circuit switching. It supports a wide-range control (coil) voltage, allowing stable operation under varied control‑voltage conditions. The contactor is built to handle heavy loads, making it suitable for motor starting, isolation, bypass, distribution, and general industrial power applications up to 1000 V AC. It includes one normally‑open (NO) plus one normally‑closed (NC) auxiliary contact (the “‑11” configuration), offering flexibility for control or signaling circuits. Its modular design and robust build allow use in motor control centers, switchgear, and other heavy‑duty installations.