ABB ASFC-01C 64649540 Switch Fuse Controller

The ABB ASFC-01C (Part Number: 64649540) is a high-reliability Switch Fuse Controller designed to monitor, control, and protect fused switching operations in medium- and low-voltage electrical systems. As a vital module in industrial power distribution panels, the ASFC-01C ensures safe disconnection and real-time condition monitoring of fuse-based protection systems.

The device integrates advanced logic, sensing, and control functions, allowing it to work seamlessly with circuit breakers, motor starters, and contactor assemblies. Built for harsh environments, the ASFC-01C supports critical operations in manufacturing, process automation, energy distribution, and infrastructure systems where controlled fuse operation and system protection are crucial.

Product Specifications

Product Applications

The ASFC-01C is designed for deployment in a wide range of industries and environments where controlled and protected switching of fused circuits is necessary:

• Industrial Automation Panels – For controlling and monitoring fuses in PLC-driven systems.

• Motor Control Centers (MCCs) – Acts as an intelligent fuse controller for motors and drives.

• Power Distribution Boards – Enhances monitoring and diagnostics in fused branches.

• Renewable Energy Systems – Protects components in solar and wind installations.

• Transportation and Rail Infrastructure – Used in signal and control circuits with high fault sensitivity.

• Process Industries – Supports fuse management in systems with heating, mixing, or continuous process loads.

Product Advantages

• Real-Time Fuse Monitoring

  Detects blown or faulty fuses within milliseconds, preventing equipment damage and improving uptime.

• Multi-Voltage Compatibility

  Operates in systems with AC or DC inputs, offering flexible integration into control architectures.

• Intelligent Communication

  RS-485 Modbus connectivity allows integration with SCADA and PLC systems for remote supervision.

• Compact and Modular Design

  Space-saving form factor with easy DIN rail or panel installation, ideal for retrofits and new builds.

• LED Status Indicators

  Provides immediate visual feedback for operators and maintenance technicians.

• Improved Safety and Diagnostics

  Prevents unsafe manual checking of fuses by automating detection and alarming functions.

Frequently Asked Questions (FAQ)

1. What is the primary function of the ABB ASFC-01C?

   The ASFC-01C monitors and controls fused switch circuits, detecting blown fuses and enabling remote supervision.

2. Can it detect partial fuse failures?

   Yes, the controller can identify underperformance or degradation trends based on voltage/current differentials.

3. Is Modbus the only communication protocol supported?

   Currently, RS-485 with Modbus RTU is the default; custom protocols may require firmware upgrades.

4. Can it be used in outdoor panels?

   The controller itself must be installed in a protected enclosure (e.g., IP54+ panel), as its PCB is rated IP20.

5. Does it work with all fuse types?

   It is compatible with most industrial fuses, including gG, aM, and class J/T types.

6. How does it indicate a blown fuse?

   Via both LED indicator and relay output, which can be wired to alarm systems or PLC inputs.

7. Is there a built-in power supply?

   No, it requires external power (AC or DC depending on installation).

8. How often should the controller be calibrated or tested?

   ABB recommends testing functionality during regular maintenance intervals, typically annually.

9. Can the device trip a breaker upon fuse failure?

   Yes, the output relay can trigger contactors, breakers, or alarm systems depending on configuration.

10. What are the installation best practices?

    Ensure clean power supply, proper grounding, and secure DIN/panel mounting with minimized cable interference.