ABB EH370-30-11 Contactor

• 1. Product Overview

  The ABB EH370-30-11 Contactor is an electrical control device designed for controlling AC motors and industrial loads. Part of the ABB EH series, it is suitable for frequent switching operations in industrial automation systems. The contactor is coil-operated and includes an auxiliary contact for control logic feedback and status indication.

  EH370-30-11 is compact, reliable, and ideal for motor starting, lighting control, and general industrial load automation.

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  2. Main Technical Data

  • Model: EH370-30-11

  • Series: EH Series

  • Poles: 3P

  • Main contacts: 3 NO

  • Auxiliary contacts: 1 NO

  • Coil voltage: 220–240 V AC (50/60 Hz)

  • Rated operational voltage (main): 690 V AC

  • AC-3 rated current: 30 A

  • AC-3 rated power: 7.5 kW (220–240 V), 15 kW (380–415 V)

  • Mounting: DIN rail or panel

  • Terminal type: Screw terminals

  • Protection: IP20

  • Operating temperature: –25 °C to +55 °C

  • Insulation voltage: 1000 V

  • Mechanical life: ≥10,000,000 operations

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

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  3. Key Advantages and Features

  1. Reliable three-phase control: Suitable for AC motors and industrial loads.

  2. Auxiliary contact function: Provides feedback and interlock control.

  3. High breaking capacity: Compliant with IEC 60947-4-1 standard.

  4. Compact design: Modular structure for easy installation in control panels.

  5. Versatile applications: Motor control, lighting, and industrial automation.

  6. Durable: Long mechanical and electrical life for industrial use.

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  4. Typical Applications

  • Three-phase motor start/stop control

  • Industrial automation systems

  • Control and distribution panels

  • Lighting and ventilation equipment control

  • Pumps, fans, compressors, and industrial loads

  • Automated production lines and factory control systems

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  5. Installation and Operation Notes

  1. Coil voltage match: Ensure coil voltage matches the supply before wiring.

  2. Load matching: Main circuit current should not exceed rated current.

  3. Correct wiring: Connect main and auxiliary contacts according to wiring diagram.

  4. Environmental conditions: Avoid humidity, high temperature, dust, and corrosion.

  5. Auxiliary contact usage: Correctly integrate into feedback or interlock circuits.

  6. Regular inspection: Check contacts, coil status, and installation tightness for reliable operatio

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The structure and details of the product：

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