ABB AF50-30 DC Contactor

1. Product Overview

The ABB AF50-30 DC Contactor is a 3-pole DC contactor from the ABB AF series, designed for industrial automation, machinery control, and power control systems. It is suitable for DC load switching and motor control, providing reliable circuit connection and disconnection. This contactor features high durability, low coil power consumption, and a wide control voltage range, making it an essential component in industrial control panels and automation systems.

2. Technical Specifications

• Model: AF50-30

• Series: AF Series Contactor

• Poles: 3 main poles

• Main Contacts: 3 × NO

• Auxiliary Contacts: Optional 1 × NO + 1 × NC

• Rated Main Current: 80 A (AC1)

• Rated DC Voltage: 220 V DC (other voltages available)

• Rated Insulation Voltage: 1000 V

• Coil Power: Low power consumption

• Mechanical Life: > 1,000,000 operations

• Mounting: DIN rail or panel mount

• Protection Rating: IP20 (without enclosure)

• Standards: IEC 60947-4-1

3. Key Advantages & Features

1. High Reliability – Industrial-grade design ensures long-term stable operation.

2. Wide Voltage Range – Supports multiple DC control voltages for versatile application.

3. Low Coil Power – Energy-efficient design reduces heat and extends contactor lifespan.

4. Compact Design – Space-saving for control panels and modular installation.

5. Long Service Life – High mechanical and electrical endurance suitable for frequent operation.

6. Flexible Auxiliary Contact Options – Expandable for control logic flexibility.

4. Typical Applications

• Industrial DC motor control

• Automated production lines and machinery control

• Load switching in PLC/DCS control cabinets

• DC circuit control in power equipment

• Lighting and general power circuit switching

• Energy management and process control systems

5. Installation & Usage Notes

1. Coil Voltage Matching – Ensure coil voltage matches the actual control voltage.

2. Load Matching – Main contact ratings must meet load requirements, especially for DC circuits.

3. Secure Wiring – Tighten all terminals to prevent loose connections.

4. Environmental Conditions – Avoid high humidity, dust, or corrosive atmospheres.

5. Auxiliary Contact Verification – Confirm auxiliary contacts are correctly configured for logic or interlock functions.

The structure and details of the product： ​

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