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The BFB63A3G fuse-holder is designed for safe and reliable fuse installation up to 690VAC with a front-back terminal configuration and green polyamide housing.
£20.27
The Mersen B239109, catalogue number BFB63A3G, is a premium British Standard fuse holder designed to provide safe, reliable protection for low voltage electrical distribution systems. Manufactured by Mersen, this fuse holder is engineered for industrial, commercial and OEM applications where dependable circuit protection and compliance with British Standards are essential.
Designed in accordance with BS88-1 and BS88-6, the B239109 features a front-back terminal configuration that simplifies installation while ensuring excellent electrical performance. Its IP2X touch-safe construction helps prevent accidental contact with live components during fuse replacement, improving operator safety and reducing maintenance risks.
Rated at 63 A with a maximum operating voltage of 690 V AC, this fuse holder is ideal for protecting switchboards, motor control centres, industrial control panels and electrical distribution equipment. The distinctive green insulated housing also assists with circuit identification within complex installations.
The Mersen B239109 securely retains BS88 fuse links while maintaining excellent electrical contact and dependable overcurrent protection. Its robust insulated construction is designed to withstand demanding industrial environments while helping improve operator safety during routine maintenance.
Widely specified by panel builders, OEM manufacturers and electrical contractors, this fuse holder delivers long-term reliability for power distribution, machinery and automation systems requiring British Standard fuse protection.
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| Phase | Single Phase | |
|---|---|---|
| Poles | 1-pole | |
| Voltage | 690 V | |
| Item number | B239109 | |
| Catalogue No | BFB63A3G | |
| Description | British Standard Fuse-Holder A3 Front-Back 690VAC Green | |
| EAN/UPC Code | 3605340446326 | |
| 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 | Green | |
| Number of Poles | 1-pole | |
| Wiring range | 1-50mm² | |
| Connection/Terminal Type | Front-Back | |
| Torque Rating | 4 Nm | |
| Housing Material | Polyamide | |
| Installation Mounting | Bus Bar Installation | |
| Product Width | 38 mm | |
| Product Length | 74.5 mm | |
| Product Height | 105.8 mm | |
| Sell Pack Quantity | 6 EA | |
| Sell Pack Weight | 1.92 kg | |
| Sell Pack Width | 245 mm | |
| Sell Pack Length | 170 mm | |
| Sell Pack Height | 135 mm | |
| Product group | Fuse Holders | |
| Body/Insulating Material | Polyamide | |
| Product Weight | 0.32 kg |
The B239109 is a British Standard fuse holder designed for mounting BS88 fuse links in industrial and commercial electrical installations.
The fuse holder is rated for 63 A operation.
The holder is rated for up to 690 V AC and 460 V DC.
Yes. The design is IP2X classified, helping prevent accidental contact with live components during fuse replacement.
The green housing assists with visual circuit identification while providing the same electrical performance and safety characteristics as other variants in the series.
Mersen BS fuse holders are trusted by electrical engineers, panel builders and OEM manufacturers worldwide for delivering reliable, standards-compliant overcurrent protection across industrial power distribution systems.
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