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MERSEN FUSE BBB125A4W BBB125A4W/1
Robust British Standard fuse-holder designed for secure and reliable circuit protection up to 690VAC with a durable back-to-back A4 configuration and white polyamide housing.
£40.10
Why Choose the Mersen E239112 BS Fuse Holder?
The Mersen E239112, catalogue number BBB125A4W, is a premium British Standard fuse holder designed to provide safe and dependable overcurrent protection for industrial and commercial low-voltage electrical systems. Manufactured by Mersen, this fuse holder is designed for A4 BS88 fuse links and offers reliable performance in demanding power distribution applications.
Featuring a back-back terminal configuration, the E239112 is ideal for installations where rear cable entry provides the most efficient wiring arrangement. Its fully insulated white housing is designed to comply with BS88-1 and BS88-6, while the shrouded terminal construction provides an IP2X classified touch-safe design that helps reduce the risk of accidental contact with live parts during fuse replacement.
Rated at 125 A with operating voltages up to 690 V AC and 460 V DC, the Mersen E239112 is well suited to switchboards, motor control centres, power distribution panels and OEM electrical equipment. Its white housing also assists with circuit identification in larger electrical installations.
Key Advantages
- Designed for A4 British Standard BS88 fuse links.
- 125 A rated current for industrial power distribution.
- 690 V AC and 460 V DC voltage ratings.
- Back-back terminal configuration for rear cable entry.
- IP2X touch-safe construction improves maintenance safety.
- White housing supports straightforward circuit identification.
Key Features
- Mersen BS Fuse Holder Series.
- Item number: E239112.
- Catalogue number: BBB125A4W.
- 125 A rated current.
- 690 V AC / 460 V DC rated voltage.
- Compatible with A4 BS88 fuse links.
- Single-pole construction.
- Back-back terminal arrangement.
- White insulated housing.
- RoHS compliant.
Reliable Protection for Industrial Power Distribution
The Mersen E239112 securely accommodates A4 BS88 fuse links while maintaining dependable electrical continuity and safe installation practices. Its insulated construction helps minimise the risk of accidental contact with live conductors, making it suitable for demanding industrial environments.
Designed for use by electrical contractors, panel builders and OEM manufacturers, this fuse holder provides reliable circuit protection and long service life in modern electrical distribution systems.
Typical Applications
- Industrial switchboards.
- Power distribution panels.
- Motor control centres.
- 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 | E239112 | |
| Catalogue No | BBB125A4W | |
| Description | British Standard Fuse-Holder A4 Back-Back 690VAC White | |
| EAN/UPC Code | 3605340446357 | |
| Rated voltage AC IEC | 690 V | |
| Rated voltage DC IEC | 460 V | |
| Ampere Rating | 125 A | |
| RoHS Compliant | Yes | |
| AC or DC | AC/DC | |
| Fuse Size | A4 | |
| Fuse Type/Class | BS | |
| Design Details | White | |
| Number of Poles | 1-pole | |
| Wiring range | 1-70mm² | |
| Connection/Terminal Type | Back-Back | |
| Torque Rating | 4 Nm | |
| Housing Material | Polyamide | |
| Installation Mounting | DIN rail | |
| Product Width | 48.9 mm | |
| Product Length | 97.8 mm | |
| Product Height | 134 mm | |
| Sell Pack Quantity | 1 EA | |
| Sell Pack Weight | 0.77 kg | |
| Sell Pack Width | 55 mm | |
| Sell Pack Length | 200 mm | |
| Sell Pack Height | 155 mm | |
| Product group | Fuse Holders | |
| Body/Insulating Material | Polyamide | |
| Product Weight | 0.77 kg |
Frequently Asked Questions
What is the Mersen E239112 used for?
The E239112 is a British Standard fuse holder designed to mount A4 BS88 fuse links in industrial and commercial low-voltage electrical systems.
What current rating does the E239112 support?
The fuse holder has a rated current of 125 A.
What voltage ratings does this fuse holder have?
The Mersen E239112 is rated for 690 V AC and 460 V DC.
How are cables connected to the E239112?
The fuse holder uses a back-back terminal configuration, allowing cable connections from the rear of the unit.
Does the E239112 provide touch-safe protection?
Yes. The fuse holder features an IP2X classified design with fully shrouded cable terminals to help reduce accidental contact with live components.
Trusted for Industrial Circuit Protection
Mersen BS fuse holders are trusted by electrical engineers, panel builders and OEM manufacturers worldwide for delivering safe, reliable and standards-compliant protection across industrial electrical distribution systems.
