An M type fuse, specifically a Midget Class M fuse, is designed for supplemental fast-acting protection in various electrical applications.
Midget Class M fuses are a type of fuse known for their compact size (hence "midget") and specific protective characteristics. They are primarily used for supplemental protection, meaning they support primary overcurrent protection devices and are not typically intended as the sole protection source in critical, high-fault current environments unless specifically designed for that role.
Key Characteristics and Applications
Based on the provided reference, M type fuses offer specific benefits and are suited for particular uses:
- Type: Midget Class M fuses (e.g., Edison M series compact fuses).
- Protection: Provide supplemental, fast-acting protection. This means they react very quickly to overcurrents, helping to prevent damage to sensitive equipment or circuits.
- Interrupt Rating: Feature a high interrupt rating design, enabling them to safely interrupt significant short-circuit currents up to their rated capacity.
- Current Ratings: Available in ratings up to 50A.
- Response: Respond quickly to overloads and short-circuit current.
Common Applications
According to the reference, Midget Class M fuses are particularly useful in specific areas:
- Control Circuits: Protecting the control wiring and components of electrical systems.
- Electronic Equipment: Safeguarding sensitive electronic devices from damage due to overcurrents.
- Street Lighting: Providing protection for the electrical circuits powering streetlights.
- HID Lighting: Useful for protecting High-Intensity Discharge (HID) lighting systems.
These applications benefit from the fast-acting nature and compact size of M type fuses, ensuring rapid fault clearance and minimizing potential damage.
Summary Table
| Feature | Description |
|---|---|
| Class | Midget Class M |
| Protection | Supplemental, Fast-Acting |
| Interrupt Rating | High Interrupt Rating Design |
| Current Range | Up to 50A |
| Response | Quick to Overloads and Short-Circuit Current |
| Key Uses | Control Circuits, Electronic Equipment, Lighting (Street, HID) |
M type fuses, therefore, are a specialized category of compact, fast-acting fuses providing crucial supplemental protection in applications where quick response and high interrupt capability for their size are required.
