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MERSEN FUSE 125B2C BTF42V125
The BTF42V125 fuse-link offers reliable protection for low-voltage industrial and commercial circuits, complying with IEC and BS88 standards. Rated at 125A with a maximum 415VAC and 240VDC, it ensures safe interruption of overloads and short-circuits in demanding applications.
£14.29
Why Choose the Mersen BTF42V125 Industrial Fuse Link?
The Mersen BTF42V125 is a robust British Standard industrial fuse link designed to protect electrical distribution circuits, machinery and switchgear against damaging overload and short-circuit currents. Manufactured by Mersen, it provides dependable current-limiting protection for compatible cables, conductors and connected electrical equipment.
During a fault condition, the BTF42V125 interrupts excessive current to help reduce the thermal and mechanical energy passed through to downstream components. This current-limiting performance can minimise equipment damage, improve circuit protection and support dependable operation in demanding industrial and commercial electrical installations.
With a rated current of 125 A and a nominal voltage class of 415 V AC, the BTF42V125 is suitable for compatible power-distribution and machinery circuits. Its bolted-tag construction provides a secure electrical connection when installed in a correctly rated fuse holder, fuse-switch or switch-fuse assembly.
Key Advantages
- Dependable overload and short-circuit protection for industrial power circuits.
- 125 A rated current for higher-load distribution and machinery applications.
- 415 V AC voltage class for compatible low-voltage systems.
- Current-limiting operation helps reduce damaging fault energy.
- Bolted-tag construction supports a secure electrical connection.
- Replaceable design enables straightforward maintenance and circuit restoration.
Key Features
- Mersen British Standard industrial fuse link.
- 125 A nominal current rating.
- 415 V AC nominal voltage class.
- Designed for overload and short-circuit protection.
- Current-limiting fuse element for rapid fault interruption.
- Bolted-tag format for compatible industrial fuse carriers.
- Industrial-grade construction for reliable performance.
- Non-resettable design requiring replacement after operation.
Reliable Protection for Higher-Current Electrical Systems
Industrial fuse links protect electrical installations by interrupting excessive current before it can cause serious conductor overheating, insulation damage or equipment failure. During an overload or short-circuit condition, the internal fuse element operates to isolate the affected circuit and limit the electrical energy reaching downstream equipment.
The Mersen BTF42V125 should be installed in a correctly rated and mechanically compatible fuse holder. Selection should take account of the circuit voltage, continuous load current, prospective short-circuit current, conductor capacity, operating conditions and coordination with other protective devices.
Typical Applications
- Industrial electrical distribution panels.
- Machinery and production equipment.
- Commercial and industrial power systems.
- Switch-fuse and fuse-switch assemblies.
- Feeder and sub-distribution circuits.
- Cable, conductor and switchgear protection.
Technical Specifications
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| Fuse Class | gG | |
|---|---|---|
| Voltage | 415 V | |
| Item number | T226314 | |
| Catalogue No | BTF42V125 | |
| Description | British Standard fuse-link IEC BS88 gG Type B2 415VAC 240VDC 125A BTF Central Bolted Tag | |
| EAN/UPC Code | 3605340267914 | |
| Rated voltage AC IEC | 415 V | |
| Rated voltage DC IEC | 240 V | |
| Ampere Rating | 125 A | |
| RoHS Compliant | Yes | |
| AC or DC | AC/DC | |
| Speed/Characteristic | gG | |
| Fuse Size | B2 | |
| Mounting | Bolted | |
| Clearing I2t At Rated Voltage | 70000 A²s | |
| Melting I2t | 17000 A²s | |
| AC Max I.R./Breaking Capacity | I1: 80 kA | |
| Max. Rated Breaking Capacity DC | 40 kA | |
| Connection/Terminal Material | Tin-Plated Copper | |
| Connection/Terminal Type | Central Bolted Tag | |
| Product Diameter | 31 mm | |
| Product Length | 136 mm | |
| Sell Pack Quantity | 5 EA | |
| Sell Pack Weight | 0.76 kg | |
| Sell Pack Width | 135 mm | |
| Sell Pack Length | 170 mm | |
| Sell Pack Height | 40 mm | |
| Product group | Low Voltage IEC Fuses | |
| Body/Insulating Material | Ceramic | |
| Product Weight | 0.152 kg | |
| Power Dissipation at Rated Current Value | 9.2 W | |
| HS Code | 85361090 | |
| Country of Manufacture | India |
Frequently Asked Questions
What is the Mersen BTF42V125 used for?
The BTF42V125 is used to protect compatible industrial electrical circuits, cables, switchgear and machinery against overload and short-circuit faults.
What is the current rating of the BTF42V125?
The Mersen BTF42V125 has a nominal current rating of 125 A.
What voltage class is the BTF42V125 designed for?
The BTF42V125 is intended for compatible low-voltage electrical systems within its specified 415 V AC nominal voltage class. The equipment nameplate and manufacturer documentation should be checked before installation.
Can the Mersen BTF42V125 be reset after it operates?
No. The BTF42V125 is a non-resettable fuse link and must be replaced with a correctly rated equivalent after it has operated.
Where is this fuse typically installed?
It is typically installed in a compatible bolted-tag fuse holder, fuse-switch or switch-fuse assembly within an industrial distribution panel, machinery installation or electrical power system.
Trusted Industrial Circuit Protection
Mersen industrial fuse links are used by electrical engineers, panel builders and maintenance professionals to provide reliable fault protection for machinery, switchgear and electrical distribution systems.
