ABB AF210-30-11-70 DC Contactor

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1. Product Overview

The ABB AF210-30-11-70 is a DC contactor designed for industrial DC power systems, electric vehicles, and energy storage systems. It provides reliable switching of high-current DC circuits, supports frequent operations, and suppresses arcs to ensure the safety of equipment and personnel. The AF210 series features compact structure, high reliability, and is suitable for motor drives, DC bus, and energy storage applications.

2. Technical Specifications

• Model: AF210-30-11-70

• Product Type: DC Contactor

• Number of Poles: 3

• Rated Operating Voltage: 750 V DC

• Rated Current: Main contacts 210 A

• Coil Voltage: 110 V DC (other options available)

• Auxiliary Contacts: 1 NO

• Mechanical Life: ≥ 10,000,000 operations

• Electrical Life: ≥ 100,000 operations (at rated load)

• Insulation Class: F

• Mounting: Panel or DIN rail mounting

• Protection Class: IP20

• Operating Temperature: -25 ℃ to +55 ℃

• Standards Compliance: IEC 60947-4-1, GB/T 14048.4

• Features: DC arc suppression, fast response, high-frequency operation capability

3. Key Advantages & Features

• High DC Current Capacity – Suitable for motor drives, energy storage, and DC bus control.

• Reliable and Long Life – Designed for high-frequency switching.

• Fast Response & Interference Resistance – High-quality coil with arc suppression technology.

• Compact Design – Saves space and allows modular installation.

• Auxiliary Contacts for Control Expansion – Suitable for remote signaling and interlocks.

• Multiple Coil Voltages – Flexible adaptation to various DC control systems.

4. Typical Applications

• Electric vehicle power systems (motor and control circuits)

• Energy storage systems and DC bus switching

• Solar PV DC bus protection and control

• Motor drives and DC load switching

• Industrial DC automation control circuits

• UPS and DC power systems isolation

5. Installation & Usage Notes

• Verify Rated Voltage and Load Current – Prevent overcurrent and ensure contactor safety.

• Match Coil Voltage – Ensure the control voltage matches the coil rating to avoid malfunction.

• Proper Wiring – Connect main and auxiliary contacts according to the control circuit design.

• Avoid High Humidity or Corrosive Environments – Use protective covers if necessary.

• Periodic Inspection – Check contact wear, arc suppression devices, and coil insulation for reliable long-term operation.