ABB AF750-30-11-70 3-pole contactor

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ABB AF750-30-11-70 3-Pole Contactor

Introduction

The ABB AF750-30-11-70 is a 3-pole contactor designed for controlling and protecting electrical circuits, motors, lighting, and other loads in low-voltage power systems. It features high load capacity, excellent durability, and is ideal for use in industrial control, building electrical systems, and distribution networks. The contactor's advanced design ensures reliable long-term operation under high load conditions, making it widely used in automation control systems, industrial equipment, and various electrical load switching applications.

Technical Specifications

• Model: AF750-30-11-70

• Series: AF750

• Type: 3-Pole Contactor

• Rated Control Voltage: 110 V AC (Coil voltage)

• Rated Operating Voltage: 690 V AC

• Rated Operating Current: 30 A

• Frequency Range: 50/60 Hz

• Contact Configuration: 3 main contacts (Normally open)

• Load Capability:

  • Motor Power: up to 18.5 kW (at 400V)

  • Max Switching Current: 30 A

• Durability:

  • Mechanical Durability: ≥ 1,000,000 operations

  • Electrical Durability: ≥ 200,000 operations (at AC-3 load)

• Temperature Range:

  • Operating Temperature: -5°C to +60°C

  • Storage Temperature: -40°C to +80°C

• Dimensions (L x W x H):

  • Length: 97 mm

  • Width: 45 mm

  • Height: 109 mm

• Certifications: CE, UL, CSA, RoHS

• Mounting: DIN rail

Features and Benefits

1. High Load Capacity

   • Supports up to 30A current, making it ideal for controlling high-power motors and industrial equipment.

2. Excellent Durability

   • With over 200,000 electrical durability cycles, it ensures long-term reliable operation and reduces replacement frequency.

3. Compact Design

   • The small form factor makes it suitable for installation in space-constrained environments, saving installation space.

4. Wide Temperature Range

   • It operates efficiently in a temperature range of -5°C to +60°C, making it suitable for diverse industrial and building environments.

5. Safety Features

   • High-standard safety protection reduces electrical fault risks, ensuring the safety of both equipment and personnel.

6. Flexible Application

   • Ideal for a variety of loads such as motors, heating elements, lighting systems, and more, used widely in automation, industrial equipment, and control systems.

Applications

1. Industrial Automation

   • Controls large motors, compressors, fans, and other heavy-duty equipment.

2. Building Electrical Systems

   • Controls lighting, air conditioning, heating, and other electrical systems in buildings.

3. Power Distribution

   • Used for switching control in power systems, ensuring the stability of the electrical grid.

4. Automation Control Systems

   • Used in control panels, electrical cabinets, and other automation applications for switching protection.

Installation & Maintenance Notes

1. Wiring

   • Ensure secure connections to prevent contact failures or overheating caused by loose wiring.

2. Environmental Temperature

   • Install the contactor within the specified operating temperature range to avoid failures.

3. Load Matching

   • Ensure that the rated current of the contactor matches the current rating of the connected load to avoid overload.

4. Regular Inspection

   • Regularly inspect the contactor's mechanical and electrical performance to ensure contacts are clean and not oxidized.

5. Avoid Moisture

   • Keep the contactor dry and free from moisture or corrosive gases to prevent failures.

The structure and details of the product：

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