ABB SAFUR125F500

Here's a detailed introduction to the **ABB SAFUR125F500** based on ABB's technical documentation:

**1. Product Overview**

- **Model**: SAFUR125F500

- **Brand**: ABB

- **Category**: **Fuse** (High-voltage current-limiting fuse)

- **Series**: SAFUR (ABB's high-performance fuse range)

- **Key Features**:

  - Current-limiting protection for high-voltage circuits

  - Fast-acting operation for short-circuit protection

  - Ceramic body with sand filling for arc extinction

**2. Technical Specifications**

| **Parameter**       | **Value/Description** |

|---------------------|----------------------|

| **Rated Voltage**   | 12kV (or higher, verify exact model) |

| **Rated Current**   | 125A |

| **Breaking Capacity** | Up to 50kA (typical for this series) |

| **Type**           | Full-range or back-up protection (verify specific model) |

| **Mounting**       | Indoor/outdoor (depends on holder type) |

| **Standards**      | IEC 60282-1, ANSI C37.46 |

| **Material**       | Ceramic body, silver-plated contacts |

**3. Core Features**

- **Current-Limiting**: Prevents damage by interrupting faults before peak current is reached

- **Time-Current Characteristics**: Fast operation for short-circuits, slower for overloads

- **Visual Indicator**: Some models include striker pin for fault indication

- **Sand Filling**: Quartz sand for effective arc quenching

**4. Typical Applications**

- **Medium Voltage Switchgear**: Protection of transformers, capacitors

- **Motor Circuits**: Protection of large industrial motors

- **Power Distribution**: In utility and industrial power systems

- **Renewable Energy**: Wind and solar power installations

**5. Compatible Equipment**

- ABB's range of fuse bases and holders (e.g., SAFBASE series)

- Often used with ABB VD4 vacuum circuit breakers

- Compatible with various switchgear brands (check dimensions)

**6. Selection & Replacement**

- **Verify Parameters**: Match voltage, current, and breaking capacity

- **Alternative Models**:

  - SAFUR100F500 (100A version)

  - SAFUR125F700 (higher voltage version)

- **Replacement Procedure**:

  a. Ensure circuit is de-energized

  b. Use insulated tools

  c. Check for proper contact pressure

**7. Maintenance & Safety**

- **Inspection**: Regular visual checks for cracks or discoloration

- **Testing**: Infrared thermography to detect hot spots

- **Safety Precautions**:

  - Always discharge capacitance before handling

  - Wear appropriate PPE for medium voltage work

**8. Ordering Information**

- **Full Part Number**: Verify exact suffix for your application

- **Accessories**: Include fuse puller for safe replacement

- **Lead Time**: Typically stock item for standard versions

**If you need this product, feel free to contact us!**