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MERSEN FUSE 400A69B4 BTMF69V400
The BTMF69V400 fuse-link is engineered to BS88 gG standards, providing reliable circuit protection with a 400A rating for up to 690VAC and 460VDC. Features central bolted tag connection and ceramic body for industrial and commercial applications.
£65.07
Why Choose the Mersen BTMF69V400 Industrial Fuse Link?
The Mersen BTMF69V400 is a heavy-duty industrial bolted tag fuse link designed to provide reliable protection for high-current low-voltage electrical systems. Manufactured by Mersen, it helps protect cables, busbars, switchgear and connected equipment by interrupting excessive current during serious electrical fault conditions.
Engineered for demanding power distribution applications, the BTMF69V400 offers effective current-limiting performance that helps reduce the peak current and total fault energy passing through the circuit. This can minimise thermal and mechanical stress on downstream components while supporting improved installation safety and reliability.
With a rated current of 400 A and an operating voltage of up to 690 V AC, the BTMF69V400 is suitable for high-capacity switchboards, industrial distribution panels, feeder circuits and machinery supplies. Its bolted tag arrangement provides a secure electrical and mechanical connection within compatible fuse holders and fused switching equipment.
Key Advantages
- Heavy-duty industrial fuse link for high-current circuit protection.
- 400 A rated current for high-capacity electrical systems.
- 690 V AC rated voltage for demanding industrial installations.
- Current-limiting operation helps reduce damaging fault energy.
- Bolted tag terminals provide a secure and dependable connection.
- Suitable for compatible fuse holders, fused switches and switch-disconnectors.
Key Features
- Mersen industrial fuse-link range.
- 400 A rated current.
- 690 V AC rated voltage.
- Robust bolted tag terminal configuration.
- Designed for high-current industrial circuit protection.
- Effective current limitation during electrical faults.
- Durable construction for demanding operating environments.
- Suitable for industrial switchboards and distribution equipment.
Reliable Protection for High-Current Distribution Systems
The Mersen BTMF69V400 is designed to disconnect a circuit rapidly when a dangerous electrical fault occurs. Its current-limiting action restricts the peak fault current and the amount of energy transferred to downstream equipment, helping reduce the risk of damage to conductors, busbars and switchgear.
Correct fuse selection and coordination with the associated fuse holder, switching device and downstream equipment can improve system reliability and minimise unplanned downtime. The BTMF69V400 is particularly suited to installations requiring dependable protection at currents up to 400 A and voltages up to 690 V AC.
Typical Applications
- High-current industrial power distribution systems.
- Main switchboards and distribution panels.
- Busbar and feeder circuit protection.
- Industrial machinery and production equipment.
- Fuse switches and switch-disconnectors.
- Commercial and industrial electrical installations.
Technical Specifications
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| Fuse Class | gG | |
|---|---|---|
| Voltage | 690 V | |
| Item number | M1006629 | |
| Catalogue No | BTMF69V400 | |
| Description | British Standard fuse-link IEC BS88 gG Type B4 690VAC 460VDC 400A BTMF Central Bolted Tag | |
| EAN/UPC Code | 3605340485141 | |
| Rated voltage AC IEC | 690 V | |
| Rated voltage DC IEC | 460 V | |
| Ampere Rating | 400 A | |
| RoHS Compliant | Yes | |
| AC or DC | AC/DC | |
| Speed/Characteristic | gG | |
| Fuse Size | B4 | |
| Mounting | Bolted | |
| Clearing I2t At Rated Voltage | 2525000 A²s | |
| Melting I2t | 505000 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 | 59.1 mm | |
| Product Length | 138 mm | |
| Sell Pack Quantity | 1 EA | |
| Sell Pack Weight | 0.618 kg | |
| Sell Pack Width | 70 mm | |
| Sell Pack Length | 128 mm | |
| Sell Pack Height | 62 mm | |
| Product group | Low Voltage IEC Fuses | |
| Body/Insulating Material | Ceramic | |
| Product Weight | 0.618 kg | |
| Power Dissipation at Rated Current Value | 38 W | |
| HS Code | 85361090 | |
| Country of Manufacture | India |
Frequently Asked Questions
What is the Mersen BTMF69V400 used for?
The BTMF69V400 is used to protect high-current industrial electrical circuits, cables, busbars, switchgear and connected equipment against damaging fault currents.
What is the current rating of the BTMF69V400?
The Mersen BTMF69V400 has a rated current of 400 A.
What voltage is the BTMF69V400 rated for?
The fuse link is designed for electrical systems operating at up to 690 V AC.
How does the BTMF69V400 protect electrical equipment?
The fuse interrupts excessive current and limits the peak fault current and electrical energy passing into downstream cables, busbars, switchgear and connected equipment.
Where is the BTMF69V400 typically installed?
The BTMF69V400 is typically installed in a compatible industrial fuse holder, fused switch or switch-disconnector within a high-current power distribution system.
Trusted for Industrial Power Protection
Mersen industrial fuse links are trusted by electrical engineers, panel builders and maintenance professionals for dependable fault interruption and effective current limitation in demanding power distribution installations.
