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Installation must be carried out by a qualified electrician.
Ensure power is switched off before installation.
Suitable for indoor use.
The Live MSFU100 Metal Main Switch Fuse is a robust, heavy-duty isolation solution designed for main incoming supply protection in commercial and industrial installations. Housed in a substantial metal enclosure with dimensions 178mm (W) x 303mm (H) x 108mm (D), this switch fuse provides reliable performance and enhanced safety. Supplied complete with an 80A fuse for immediate use, it also accepts a separately purchased 100A fuse for higher-rated applications. Manufactured to BS EN 60947-3 standards, the MSFU100 delivers professional-grade isolation and protection for main switch applications, distribution boards, and sub-mains where robust metal construction and compliance are essential.
100A Rating: Suitable for main incoming supplies and high-current distribution.
80A Fuse Included: Supplied with 80A fuse for immediate installation and use.
100A Fuse Compatible: Accepts separately purchased 100A fuse for higher capacity requirements.
Robust Metal Enclosure: Substantial metal housing for durability and compliance.
Large Dimensions: 178mm (W) x 303mm (H) x 108mm (D) for ample wiring space.
Complies with BS EN 60947-3: Manufactured to international switchgear standards.
Main Switch Application: Ideal for main incoming supply isolation.
Versatile Use: Suitable for commercial and industrial installations.
Professional Grade: Designed for demanding electrical environments.
Quality Construction: Robust build for long-term reliability.
Safety Compliant: Meets required safety standards for switchgear.
| Specification | Details |
|---|---|
| Brand | Live |
| Model | MSFU100 |
| Product Type | Metal Main Switch Fuse |
| Current Rating | 100A |
| Fuse Supplied | 80A fuse included |
| Fuse Options | 100A fuse sold separately |
| Enclosure Material | Metal |
| Dimensions | 178mm (W) x 303mm (H) x 108mm (D) |
| Standards | BS EN 60947-3 |
| Applications | Main incoming supply, distribution boards, sub-mains |
| Mounting | Surface mount |
| Warranty | Manufacturer guarantee |
1. Why is the unit supplied with an 80A fuse instead of a 100A fuse?
The 80A fuse is included to provide immediate protection for standard applications, while offering flexibility for installers to purchase a 100A fuse separately if higher capacity is required, preventing waste and allowing customization.
2. What are the typical applications for this large-format switch fuse?
Ideal for main incoming supply isolation in commercial buildings, industrial facilities, large workshops, distribution board incomers, and sub-main feeders where substantial enclosure space facilitates easier wiring.
3. How does the BS EN 60947-3 compliance benefit installation?
This standard ensures the switch fuse meets rigorous requirements for performance, safety, and durability in industrial and commercial environments, providing confidence in its isolation and protection capabilities.
4. What cable sizes can this enclosure accommodate?
The generous dimensions (303mm height) provide ample space for larger cables typical of 100A installations. The terminals accommodate cables appropriate for 80-100A applications (typically 25-35mm²).
5. Is this switch suitable for three-phase applications?
No, this specific model is designed for single-phase applications. For three-phase main isolation, a 4-pole switch fuse would be required.
