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ABB AF580-30-11-70 3-Pole Contactor  

1. Key Parameters

• Product Model: AF580-30-11-70 (3-pole contactor with specific coil and auxiliary contact configuration)
• Pole Configuration: 3 poles (for three-phase AC circuits)
• Rated Current (Iₑ): 580A (AC-3 duty, 400V AC; for squirrel-cage motor starting and running)
• Rated Making Current: 10×Iₑ (5800A) at AC-3 duty
• Rated Breaking Current: 8×Iₑ (4640A) at AC-3 duty
• Rated Operational Voltage (Uₑ): Up to 690V AC (50/60Hz)
• Coil Voltage (Uc): 230V AC (standard; other voltages available on request)
• Coil Power Consumption: 175VA (inrush), 25VA (holding)
• Auxiliary Contacts: 1 normally open (NO) + 1 normally closed (NC) (integrated auxiliary contacts for control circuit signaling)
• Mechanical Endurance: ≥10 million operations
• Electrical Endurance: ≥100,000 operations (AC-3 duty, rated current)
• Insulation Voltage (Ui): 1000V AC
• Impulse Withstand Voltage (Uimp): 8kV
• Mounting Method: Flange mounting or DIN rail mounting (with optional adapter)
• Protection Class: IP20 (when installed in an enclosure); Complies with IEC 60947-4-1, EN 60947-4-1

2. Product Features

• High Current Handling Capacity: Rated for 580A at AC-3 duty, making it suitable for controlling large motors (up to approximately 315kW at 400V) and heavy electrical loads in industrial plants.
• Robust Arc Extinction: Equipped with advanced arc chutes to efficiently extinguish arcs during switching, reducing contact wear and extending service life.
• Low Power Consumption Coil: Optimized coil design minimizes holding power consumption (25VA), reducing energy loss and heat generation in control panels.
• Integrated Auxiliary Contacts: 1NO+1NC auxiliary contacts provide built-in signaling for control circuits (e.g., status indication, interlocking), eliminating the need for additional auxiliary contactors.
• Wide Voltage Compatibility: Operates at up to 690V AC, compatible with medium-voltage industrial power systems commonly used in manufacturing, mining, and infrastructure.
• Durable Construction: Heavy-duty metal frame and high-temperature resistant contact materials (silver alloy) ensure reliable performance in harsh environments with vibration, dust, or temperature fluctuations.
• Easy Installation: Flexible mounting options (flange or DIN rail) and clear terminal markings simplify installation and wiring, reducing commissioning time.

3. Application Fields

• Motor Control: Controls large three-phase induction motors in pumps, fans, compressors, and conveyors in manufacturing plants, water treatment facilities, and mining operations.
• Power Distribution: Switches power circuits in distribution panels, transformer feeders, and capacitor banks in industrial power systems and utility substations.
• Heavy Industry: Used in steel mills, cement plants, and chemical processing facilities to control high-power equipment such as crushers, mixers, and kilns.
• Infrastructure Projects: Manages electrical loads in wastewater treatment plants, desalination facilities, and district heating systems—ensuring reliable operation of critical infrastructure.
• Renewable Energy: Switches power circuits in wind farms and solar power plants, controlling auxiliary systems such as cooling fans, pumps, and tracking motors.

4. Precautions

• Duty Cycle Matching: Ensure the contactor's duty cycle (AC-3 for motor control) matches the application—avoid using for DC circuits or non-motor loads without confirming compatibility.
• Coil Voltage Selection: Verify that the coil voltage (230V AC for this model) matches the control circuit voltage; incorrect voltage will damage the coil or prevent operation.
• Overcurrent Protection: Always install appropriate overload relays (e.g., ABB TA series) or fuses in series with the contactor to protect against sustained overcurrents (e.g., motor stalls).
• Environmental Protection: Install the contactor in a dust-tight, moisture-proof enclosure in harsh environments; avoid direct exposure to corrosive gases, excessive dust, or water.
• Maintenance Schedule: Periodically inspect contacts for wear or burning, clean arc chutes, and check coil connections—replace contacts or the entire unit if significant wear is detected to prevent failure.
• Mechanical Interlocking: For reversing applications (e.g., forward/reverse motor control), use mechanical interlocks to prevent simultaneous closure of forward and reverse contactors, which would cause a short circuit

The structure and details of the product：

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