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 BB125 FOR A4 BBB125A4/1
Why Choose the MERSEN FUSE BS GP FUSE HOLDER BB125 FOR A4 BBB125A4/1?
£35.77
Why Choose the Mersen BBB125A4/1 BS Fuse Holder?
The Mersen BBB125A4/1 is a high-performance British Standard fuse holder designed for dependable overcurrent protection in industrial and commercial low-voltage electrical installations. Manufactured by Mersen, this fuse holder is engineered for use with A4 BS88 fuse links, providing a secure electrical connection and long service life in demanding environments.
Designed with a back-back terminal configuration, the BBB125A4/1 is ideal where rear cable entry is preferred for neat panel wiring. It complies with BS88-1 and BS88-6 requirements and incorporates a fully insulated construction with IP2X classified shrouded terminals, helping to reduce the risk of accidental contact with live parts during fuse replacement or maintenance.
With a rated current of 125 A and operating voltages up to 690 V AC and 460 V DC, the Mersen BBB125A4/1 is ideally suited for switchboards, motor control centres, industrial distribution panels and OEM electrical equipment requiring reliable British Standard circuit protection.
Key Advantages
- Designed for A4 British Standard BS88 fuse links.
- 125 A current rating for industrial power distribution.
- 690 V AC and 460 V DC voltage ratings.
- Back-back terminal arrangement for rear cable entry.
- IP2X touch-safe construction improves maintenance safety.
- Robust insulated housing for long-term industrial reliability.
Key Features
- Mersen BS Fuse Holder Series.
- Model: BBB125A4/1.
- Compatible with A4 BS88 fuse links.
- 125 A rated current.
- 690 V AC / 460 V DC rated voltage.
- Single-pole construction.
- Back-back connection arrangement.
- Panel mounting design.
- IP2X classified touch-safe terminals.
- RoHS compliant.
Reliable Protection for Industrial Electrical Systems
The Mersen BBB125A4/1 securely retains A4 BS88 fuse links while maintaining excellent electrical contact and dependable circuit protection. Its insulated construction helps minimise the risk of accidental contact with live conductors, making it suitable for demanding industrial environments.
Designed for use by panel builders, electrical contractors and OEM manufacturers, this fuse holder provides reliable circuit protection and long operational life across modern power 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.
| Poles | 1-pole | |
|---|---|---|
| Device Type | Fuse base / holder | |
| Current | 125 A | |
| Voltage | 690 V | |
| Manufacturer | Mersen | |
| Series | BS Fuse Holders | |
| Model | BBB125A4/1 | |
| Product type | British Standard fuse holder | |
| Fuse size | A4 | |
| Fuse standard | BS88 | |
| Rated current | 125 A | |
| Rated voltage AC | 690 V | |
| Rated voltage DC | 460 V | |
| Connection type | Back-back | |
| Number of poles | 1 | |
| Protection rating | IP2X | |
| Maximum cable size | 70 mm² | |
| Mounting type | Panel mounting | |
| Dimensions (H × W × D) | approx. 134 × 49 × 98 mm | |
| Compliance | BS88-1, BS88-6, RoHS |
Frequently Asked Questions
What is the Mersen BBB125A4/1 used for?
The BBB125A4/1 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 BBB125A4/1 support?
The fuse holder has a rated current of 125 A.
What voltage ratings does this fuse holder have?
The Mersen BBB125A4/1 is rated for 690 V AC and 460 V DC.
How are cables connected to the BBB125A4/1?
The holder uses a back-back terminal configuration, allowing cable connections from the rear of the unit.
Does the BBB125A4/1 provide touch-safe protection?
Yes. The fuse holder features an IP2X classified design with fully shrouded 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 reliable, standards-compliant protection across industrial electrical distribution systems.
