ABB S2-H-VDE 0660 Circuit Breaker Auxiliary Switch

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• ABB S2-H-VDE 0660 Circuit Breaker Auxiliary Switch

  1. Product Overview

  The ABB S2-H-VDE 0660 is an auxiliary switch module designed for circuit breakers, providing additional signal feedback such as breaker ON/OFF status. This compact auxiliary switch is easy to install and can be used with various low-voltage circuit breakers, enabling reliable indication for electrical control and monitoring systems.

  2. Technical Specifications

  • Model: S2-H-VDE 0660

  • Product Type: Auxiliary Switch for Circuit Breaker

  • Contact Type: Normally Open (NO) / Normally Closed (NC) selectable

  • Rated Voltage: AC 250 V / DC 24–250 V

  • Rated Current: 5 A (AC) / 0.5–2 A (DC)

  • Operation: Interlocked with the main breaker, provides ON/OFF status feedback

  • Mounting: Directly on the side of the circuit breaker

  • Operating Temperature: -25 °C to +60 °C

  • Protection Class: IP20

  • Mechanical Life: ≥ 10,000 operations

  3. Advantages and Features

  1. Reliable Status Feedback
     Provides breaker ON/OFF signal for remote monitoring and automation control.

  2. Easy Installation
     Compact design allows direct mounting on the breaker side without extra brackets.

  3. High Compatibility
     Suitable for a wide range of low-voltage circuit breakers, facilitating system expansion.

  4. High Reliability
     Industrial-grade design, vibration-resistant and dust-proof, ensuring long-term stable operation.

  5. Cost-Effective
     Simple modular structure, low cost, easy maintenance and replacement.

  4. Typical Applications

  • Low-voltage distribution systems

  • Industrial automation electrical control

  • Motor Control Centers (MCC)

  • Building and factory power monitoring

  • Automation control and status monitoring systems

  5. Installation and Usage Notes

  • Disconnect power before installation or maintenance.

  • Ensure the auxiliary switch is compatible with the breaker model.

  • Ensure firm contact during installation to avoid poor connection.

  • Regularly check contact status and signal output to ensure reliable feedback.

  • Avoid installation in high humidity, corrosive, or high-vibration environments.

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The structure and details of the product：

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