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MERSEN FUSE PRF 5-6 AF MIPRF5-6AF
Mersen W078311 MIPRF5-6AF in-line miniature fuse holder for 5 x 20 mm cartridge fuses, rated at 6.3 A and 250 V AC with factory-fitted leads.
£2.40
Why Choose the Mersen W078311 In-Line Miniature Fuse Holder?
The Mersen W078311, also identified by the catalogue reference MIPRF5-6AF, is a compact and reliable in-line miniature fuse holder designed for use with standard 5 × 20 mm cartridge fuses. Part of the Mersen PRF miniature fuse-holder range, it provides a practical way to integrate replaceable overcurrent protection directly into electrical wiring.
Rated at 6.3 A and 250 V AC, the W078311 is suitable for industrial controls, power supplies, electronic equipment and OEM assemblies. Its factory-fitted connection leads simplify installation and provide a dependable electrical interface between the fuse and the protected circuit.
The holder features flame-resistant insulating material and low-resistance contacts for reliable electrical performance. Its compact in-line construction makes it particularly useful where panel-mounted or printed circuit board fuse holders are unsuitable or where fuse protection must be installed within a wiring harness.
Key Advantages
- Designed for standard 5 × 20 mm miniature cartridge fuses.
- 6.3 A rated current for electrical and electronic circuits.
- 250 V AC rated voltage for low-voltage equipment.
- Factory-fitted leads simplify in-line installation.
- Low contact resistance supports efficient electrical performance.
- Flame-resistant insulating material improves installation safety.
Key Features
- Mersen PRF 5-6 AF miniature fuse-holder series.
- MIPRF5-6AF catalogue reference.
- Compatible with 5 × 20 mm cartridge fuses.
- 6.3 A rated current.
- 250 V AC rated operating voltage.
- Single-pole in-line construction.
- Pre-wired flexible connection leads.
- UL 94 V-0 flame-retardant insulating material.
Convenient In-Line Protection for Electrical Wiring
In-line fuse holders allow cartridge fuse protection to be incorporated directly into a cable or wiring harness. This arrangement is useful where enclosure space is restricted or where the protected circuit is located away from a control panel or printed circuit board.
The Mersen W078311 securely accommodates a standard 5 × 20 mm fuse and provides pre-wired connections for efficient installation. Its compact construction, low contact resistance and flame-retardant materials make it suitable for professional electrical equipment and OEM wiring assemblies.
Typical Applications
- Industrial control equipment.
- Power supplies and transformers.
- Electronic equipment and instrumentation.
- Wiring harnesses and cable assemblies.
- Automation machinery and OEM equipment.
- Commercial electrical appliances.
Technical Specifications
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| Phase | Single Phase | |
|---|---|---|
| Poles | 1-pole | |
| Device Type | Fuse base / holder | |
| Fuse Type | Miniature | |
| Fuse Size | 5x20 mm | |
| Current | 6.3 A | |
| Voltage | 250 V | |
| Manufacturer | Mersen | |
| Series | PRF Miniature Fuse Holders | |
| Model | W078311 | |
| Catalogue number | MIPRF5-6AF | |
| Product type | In-line miniature fuse holder | |
| Compatible fuse size | 5 × 20 mm | |
| Rated current | 6.3 A | |
| Rated voltage | 250 V AC | |
| Number of poles | 1 | |
| Connection type | Factory-fitted leads | |
| Conductor cross-section | 0.75 mm² | |
| Protection rating | IP00 | |
| Contact resistance | approximately 5 to 10 mΩ | |
| Flammability rating | UL 94 V-0 | |
| Impact safety category | PC1 | |
| RoHS compliant | Yes | |
| Approximate weight | 0.008 kg | |
| GTIN / EAN | 3605340029178 |
Frequently Asked Questions
What is the Mersen W078311 used for?
The W078311 provides an in-line mounting point for a replaceable cartridge fuse, allowing electrical wiring and connected equipment to be protected against overcurrent faults.
What fuse size fits the Mersen W078311?
The holder is designed for standard 5 × 20 mm miniature cartridge fuses.
What is the current rating of the Mersen W078311?
The fuse holder has a rated current of 6.3 A.
What voltage is the W078311 rated for?
The Mersen W078311 is rated for operation at up to 250 V AC.
How is the Mersen W078311 connected?
The holder is supplied with factory-fitted flexible leads, allowing it to be connected directly into an electrical cable or wiring harness.
Trusted by Electrical Professionals Worldwide
Mersen miniature fuse holders are widely specified by equipment manufacturers, panel builders and maintenance engineers for compact, accessible and dependable circuit protection.
