ABB AX300-30-11-80 Three-phase contactor

1. Product Overview

The ABB AX300‑30‑11‑80 Contactor is a three-pole AC contactor designed for industrial control applications, particularly motor control and high current switching.

2. Detailed Technical Specifications

• Model: AX300-30-11-80

• Poles: 3P (Three-phase)

• Main Contacts: 3 normally open (3NO)

• Auxiliary Contacts: 1 NO + 1 NC

• Rated Insulation Voltage (Ui): 690 V

• Rated Operational Voltage (Main Circuit): up to 1000 V AC

• Control Coil Voltage (Uc):

  • 220-230 V AC @ 50 Hz

  • 230-240 V AC @ 60 Hz

• Thermal Current (Ith): 250 A

• Rated Operational Current AC-1 (Ie): up to 500 A

• Rated Operational Current AC-3 (Ie): up to 305 A

• Rated Power AC-3: up to 250 kW (690 V)

• Breaking Capacity AC-3: 8 × Ie

• Making Capacity AC-3: 10 × Ie

• Short-time Withstand Current (Icw): up to 3050 A

• Electrical Switching Frequency: max 300 cycles/hour

• Mechanical Durability: approx. 5 million operations

• Dimensions: ~225 × 140 × 180 mm

• Weight: ~4.7 kg

• Protection: IP40 (auxiliary side)

• Ambient Temp Range: -40°C to +70°C

3. Advantages & Features

✔ High current switching capability for control of heavy loads.
✔ Robust short-circuit and thermal endurance for reliable performance.
✔ Wide operational voltage range suitable for diverse systems.
✔ Auxiliary terminals enable flexible control logic integration.
✔ Compact design saves panel space and simplifies installation.
✔ High mechanical lifetime for lower maintenance needs.

4. Typical Application Areas

• Three-phase motor control and starter circuits
• Industrial automation control panels
• Pump, fan, compressor load switching
• HVAC and large machinery control
• Power distribution and interlocking systems

Used extensively across manufacturing, process industries, mining, transportation, electrical infrastructure, and more.

5. Installation & Safety Notes

• Match control coil voltage with supply.
• Install in clean, dry, ventilated environment.
• Ensure correct wiring and secure terminal connections.
• Allow space for heat dissipation.
• Follow local electrical codes and safety standards.

The structure and details of the product：

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