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.
