Why Choose the Mersen L081844 High-Speed Cylindrical Fuse?
The Mersen L081844 is a high-performance Protistor® cylindrical semiconductor fuse-link designed to provide rapid and reliable protection for sensitive DC electrical circuits. Rated at 3.15 A and 1500 V DC, it is specifically developed for auxiliary circuits, control systems, measuring equipment and monitoring devices where fast fault interruption is essential.
As part of the trusted Mersen Protistor® 20 × 127 mm gR range, the L081844 provides fast-acting, full-range protection against overloads and short circuits. Its gRB design offers excellent current-limiting performance to help safeguard valuable semiconductor components and minimise equipment downtime.
The fuse features a robust ceramic body, silver-plated copper ferrule terminals and a high DC breaking capacity of 30 kA. These characteristics make it suitable for industrial automation, photovoltaic systems, battery energy storage, power conversion equipment and other demanding high-voltage DC applications.
Key Advantages
- Fast-acting gR full-range semiconductor protection.
- 3.15 A current rating for sensitive auxiliary and control circuits.
- 1500 V DC voltage rating for high-voltage DC installations.
- 30 kA DC breaking capacity for dependable fault interruption.
- Excellent current-limiting characteristics reduce equipment damage.
- Compact 20 × 127 mm cylindrical design.
- Reliable ceramic construction for demanding industrial environments.
Key Features
- Mersen Protistor® semiconductor protection fuse.
- FD20GB150V3,15 catalogue reference.
- 3.15 A rated current.
- 1500 V DC rated voltage.
- gR operating characteristic.
- gRB design classification.
- 30 kA DC breaking capacity.
- 20 × 127 mm cylindrical fuse format.
- Silver-plated copper ferrule terminals.
- Clip-mounted installation.
- UL Recognised and RoHS compliant.
Reliable Protection for Sensitive DC Equipment
High-speed semiconductor fuse-links are engineered to interrupt fault currents before damaging thermal and electrical stresses can reach sensitive electronic components. Their rapid response helps protect semiconductor devices while reducing repair costs and improving system reliability.
The Mersen L081844 is suitable for modern industrial control systems, renewable energy installations and power conversion equipment requiring dependable high-speed DC circuit protection.
Typical Applications
- Industrial auxiliary circuits.
- Control and monitoring systems.
- Measuring and instrumentation equipment.
- Semiconductor protection circuits.
- Photovoltaic systems.
- Battery energy storage systems.
- Industrial converters and inverters.
- High-voltage DC distribution equipment.
