ABB 2CSR275040R1204 Contactor

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1. Product Overview

ABB 2CSR275040R1204 is a modular AC contactor designed for reliable switching and control of electrical circuits. It is part of ABB’s modular installation product range and is suitable for automated and remote control applications in power distribution, building installations, and industrial control systems.

2. Main Technical Specifications

• Manufacturer: ABB

• Model: 2CSR275040R1204

• Product Type: Modular AC Contactor

• Mounting: DIN rail mounting

• Rated Operational Voltage (Ue):

  • 400 / 415 V AC (typical)

• Rated Operational Current (Ie):

  • 40 A (AC-1 duty, typical)

• Number of Poles:

  • 4 poles

• Contact Configuration:

  • Normally Open (NO)

• Control Voltage (Coil Voltage):

  • 230 V AC, 50/60 Hz

• Rated Frequency:

  • 50 / 60 Hz

• Rated Insulation Voltage (Ui):

  • 500 V

• Service Life:

  • Long mechanical life, suitable for frequent switching

• Ambient Temperature Range:

  • -25 °C to +55 °C

• Standards:

  • IEC / EN 60947

3. Advantages and Features

1. Compact Modular Design
   DIN rail mounting allows fast installation and efficient use of panel space.

2. High Reliability and Long Life
   High-quality contact materials ensure stable performance under frequent switching operations.

3. Low Operating Noise
   Optimized coil design provides quiet operation, ideal for residential and commercial applications.

4. Excellent Compatibility
   Fully compatible with ABB modular protection and control devices for integrated system solutions.

5. Low Maintenance Requirements
   Simple structure and robust design reduce downtime and maintenance costs.

4. Typical Applications

• Building electrical installations

• Lighting control systems

• HVAC systems

• Industrial control circuits

• Distribution boards and control panels

• Automation and energy management systems

5. Installation and Operation Notes

1. Verify rated current, voltage, and coil voltage before installation.

2. Tighten terminals according to specified torque values to ensure proper connections.

3. Operate the contactor within its rated load to avoid overheating or premature wear.

4. Ensure adequate ventilation and avoid harsh environmental conditions.

5. Perform functional testing before commissioning.

The structure and details of the product：

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