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MERSEN FUSE 500V CP 14X51 GG 40A S/I FR14GG50V40
Mersen FR14GG50V40 14 × 51 mm gG cylindrical fuse-link rated at 40 A, 500 V AC and 250 V DC for overload and short-circuit protection.
£1.13
Why Choose the Mersen FR14GG50V40 Cylindrical Fuse?
The Mersen FR14GG50V40 is a high-performance 14 × 51 mm gG cylindrical fuse-link designed to provide dependable overload and short-circuit protection for cables, motors, low-voltage networks and industrial electrical equipment. As part of the established Mersen FR14 gG fuse range, it delivers reliable full-range protection for electrical distribution circuits and demanding industrial applications.
Its gG operating characteristic enables the fuse to interrupt both sustained overload currents and severe short-circuit currents up to its rated breaking capacity. The ceramic body and silver-plated copper ferrules provide excellent thermal resistance, reliable electrical conductivity and consistent performance throughout the fuse's service life.
With a rated current of 40 A, an IEC rated voltage of 500 V AC and 250 V DC and a high AC breaking capacity of 120 kA, the FR14GG50V40 is suitable for switchgear, distribution boards, industrial control panels and OEM machinery. Its standard 14 × 51 mm format allows straightforward clip mounting in compatible Mersen CMS14 and UltraSafe US14 fuse holders.
Key Advantages
- Provides full-range protection against overloads and short circuits.
- 40 A rated current for industrial distribution circuits.
- 500 V AC and 250 V DC rated voltage.
- 120 kA AC breaking capacity for reliable fault interruption.
- Current-limiting performance helps reduce thermal and mechanical stress.
- Ceramic construction with silver-plated copper contacts for long-term reliability.
Key Features
- Mersen FR14 gG cylindrical fuse range.
- 14 × 51 mm cylindrical fuse-link format.
- 40 A rated current.
- 500 V AC and 250 V DC IEC ratings.
- gG full-range fuse characteristic.
- 120 kA AC and 100 kA DC breaking capacity.
- High-strength ceramic insulating body.
- Silver-plated copper ferrule contacts.
Reliable Protection for Electrical Distribution Systems
The Mersen FR14GG50V40 protects cables, motors and low-voltage networks by limiting unacceptable overcurrents and rapidly interrupting short-circuit faults. Its full-range gG characteristic provides dependable protection across normal overload and high-fault-current conditions, helping reduce equipment damage and electrical safety risks.
The fuse also helps protect electrical installations from the dynamic and thermal effects of severe short circuits. Its compact cylindrical construction makes it suitable for distribution assemblies, industrial control panels and machinery where reliable protection and efficient use of panel space are required.
Typical Applications
- Industrial electrical distribution circuits.
- Distribution boards and switchgear.
- Cable and conductor protection.
- Industrial control panels.
- Motor and machinery circuits.
- OEM automation and production equipment.
Technical Specifications
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| Current | 40 A | |
|---|---|---|
| Voltage | 500 V | |
| Device Type | Fuse link | |
| Fuse Type | Cylindrical | |
| Fuse Size | 14x51 mm | |
| Fuse Class | gG | |
| Manufacturer | Mersen | |
| Series | FR14 gG | |
| Model | FR14GG50V40 | |
| Manufacturer item number | X218198 | |
| EAN / UPC | 8430399008356 | |
| Product type | Cylindrical fuse-link | |
| Fuse characteristic | gG | |
| Rated current | 40 A | |
| Rated voltage AC | 500 V | |
| Rated voltage DC | 250 V | |
| Breaking capacity AC | 120 kA | |
| Breaking capacity DC | 100 kA at 250 V DC | |
| Fuse size | 14 × 51 mm | |
| Mounting type | Clip mounting | |
| Terminal type | Ferrule | |
| Terminal material | Silver-plated copper | |
| Body material | Ceramic | |
| Product diameter | 14.3 mm | |
| Product length | 51 mm | |
| Power dissipation at rated current | 4 W | |
| Product weight | Approx. 0.021 kg | |
| RoHS compliant | Yes | |
| HS Code | 85361050 | |
| Country of Manufacture | Tunisia |
Frequently Asked Questions
What is the Mersen FR14GG50V40 used for?
The FR14GG50V40 protects cables, motors, low-voltage networks and industrial equipment against overload and short-circuit currents.
What does the gG fuse characteristic mean?
A gG fuse provides full-range protection against both overload currents and short-circuit faults, making it suitable for general electrical distribution applications.
What are the current and voltage ratings?
The Mersen FR14GG50V40 has a rated current of 40 A and voltage ratings of 500 V AC and 250 V DC.
What is the breaking capacity of this fuse?
The FR14GG50V40 has a maximum breaking capacity of 120 kA AC and 100 kA at 250 V DC.
What fuse holder is compatible with the FR14GG50V40?
This fuse is designed for installation in a compatible 14 × 51 mm cylindrical fuse holder, including suitable Mersen CMS14 and UltraSafe US14 models.
Trusted by Electrical Professionals Worldwide
Mersen gG cylindrical fuse-links are trusted by electrical contractors, panel builders and industrial engineers for dependable overcurrent protection, high fault interruption capability and consistent performance in demanding electrical systems.
