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!**