Standard delivery
£8 ex VAT · free over £200UK parcel delivery is £8 ex VAT, or free on orders over £200 ex VAT.
Heavier items may be charged at a weight-based or pallet rate, shown at checkout.
MERSEN FUSE BS GP FUSE HOLDER FF63 FOR A3W BFF63A3W/6
The BFF63A3W fuse-holder offers reliable protection for industrial low-voltage circuits up to 690VAC and 63A. Featuring a front-front terminal design and white polyamide housing, it ensures easy fuse replacement and clear circuit identification.
£17.03
Why Choose the Mersen W239104 BS Fuse Holder?
The Mersen W239104, catalogue number BFF63A3W, is a premium British Standard fuse holder designed to provide dependable overcurrent protection in industrial and commercial electrical installations. Manufactured by Mersen, this single-pole fuse holder is designed for A3 BS88 fuse links and delivers reliable electrical performance while helping improve operator safety during maintenance.
The W239104 features a front-front terminal configuration, allowing both cable connections to be made from the front of the holder for simplified wiring within control panels and switchboards. Its insulated polyamide construction incorporates fully shrouded cable terminals that remain protected when the fuse carrier is removed, providing an IP2X classified touch-safe design.
Rated at 63 A with voltage ratings of 690 V AC and 460 V DC, the Mersen W239104 is suitable for power distribution equipment, motor control centres, industrial machinery and OEM electrical systems. Its white housing also assists with circuit identification inside electrical enclosures.
Key Advantages
- Designed for A3 British Standard BS88 fuse links.
- 63 A rated current for industrial electrical protection.
- 690 V AC and 460 V DC voltage ratings.
- Front-front terminals simplify installation and maintenance.
- IP2X touch-safe construction helps improve operator safety.
- White housing provides easy visual circuit identification.
Key Features
- Mersen BS Fuse Holder Series.
- Item number: W239104.
- Catalogue number: BFF63A3W.
- 63 A current rating.
- 690 V AC / 460 V DC rated voltage.
- Compatible with A3 BS88 fuse links.
- Single-pole design.
- Front-front connection arrangement.
- DIN rail mounting.
- White polyamide insulated housing.
- RoHS compliant.
Reliable Protection for Industrial Electrical Systems
The Mersen W239104 securely supports A3 BS88 fuse links while maintaining excellent electrical contact and dependable circuit protection. Its insulated design reduces the likelihood of accidental contact with live conductors during fuse replacement and routine servicing.
Engineered for industrial reliability, the W239104 is widely used by panel builders, electrical contractors and OEM manufacturers in low-voltage distribution systems where compliance, durability and safety are essential.
Typical Applications
- Industrial switchboards.
- Motor control centres.
- Electrical distribution panels.
- Machine control cabinets.
- Industrial automation equipment.
- OEM electrical systems.
Technical Specifications
Tick the specs you need, then view products that match.
| Phase | Single Phase | |
|---|---|---|
| Poles | 1-pole | |
| Voltage | 690 V | |
| Item number | W239104 | |
| Catalogue No | BFF63A3W | |
| Description | British Standard Fuse-Holder A3 Front-Front 690VAC White | |
| EAN/UPC Code | 3605340446272 | |
| Rated voltage AC IEC | 690 V | |
| Rated voltage DC IEC | 460 V | |
| Ampere Rating | 63 A | |
| RoHS Compliant | Yes | |
| AC or DC | AC/DC | |
| Fuse Size | A3 | |
| Fuse Type/Class | BS | |
| Design Details | White | |
| Number of Poles | 1-pole | |
| Wiring range | 1-50mm² | |
| Connection/Terminal Type | Front-Front | |
| Torque Rating | 4 Nm | |
| Housing Material | Polyamide | |
| Installation Mounting | DIN rail | |
| Product Width | 38 mm | |
| Product Length | 74.5 mm | |
| Product Height | 105.8 mm | |
| Sell Pack Quantity | 6 EA | |
| Sell Pack Weight | 1.59 kg | |
| Sell Pack Width | 80 mm | |
| Sell Pack Length | 244 mm | |
| Sell Pack Height | 140 mm | |
| Product group | Fuse Holders | |
| Body/Insulating Material | Polyamide | |
| Product Weight | 0.265 kg |
Frequently Asked Questions
What is the Mersen W239104 used for?
The W239104 is a British Standard fuse holder designed to securely mount A3 BS88 fuse links in industrial and commercial electrical installations.
What current rating does the W239104 support?
The fuse holder has a rated current of 63 A.
What voltage ratings does the fuse holder have?
It is rated for 690 V AC and 460 V DC applications.
How are cables connected to the W239104?
The holder features a front-front terminal configuration, allowing both cable connections to be made from the front of the unit.
Does the W239104 provide touch-safe protection?
Yes. The fuse holder incorporates an IP2X classified design with fully shrouded terminals to help reduce accidental contact with live parts.
Trusted for Industrial Circuit Protection
Mersen BS fuse holders are trusted by electrical engineers, panel builders and OEM manufacturers worldwide for delivering reliable, standards-compliant protection across industrial power distribution systems.
