Why Choose the Mersen A089493 FD20GB100V10T High-Speed Fuse?
The Mersen A089493, catalogue number FD20GB100V10T, is a high-speed Protistor® cylindrical fuse link designed specifically for protecting sensitive equipment in high-voltage DC applications. Its fast-acting, full-range gR characteristic provides effective protection against both overloads and short-circuit currents.
Rated at 10 A and 1000 V DC, the A089493 is particularly suitable for auxiliary circuits, control systems and measuring or monitoring devices used in industrial power conversion equipment. Its current-limiting performance helps reduce the fault energy transferred to connected components, supporting reliable operation and minimising equipment damage.
The fuse features a compact 20 × 127 mm cylindrical body with ferrule terminals for installation in compatible fuse clips. An integrated striker provides remote or mechanical fuse-status indication, while its high 100 kA DC breaking capacity enables dependable fault interruption in demanding industrial systems.
Key Advantages
- Fast-acting full-range gR fuse protection.
- 10 A rated current for control and auxiliary circuits.
- 1000 V DC voltage rating for high-voltage applications.
- High 100 kA DC breaking capacity.
- Current-limiting operation reduces let-through fault energy.
- Integrated striker provides clear fuse-operation indication.
- Compact cylindrical format supports space-efficient installation.
- Designed for dependable protection of sensitive industrial equipment.
Key Features
- Mersen Protistor® high-speed fuse series.
- FD20GB100V10T catalogue reference.
- 10 A rated current.
- 1000 V DC rated voltage.
- gR full-range operating characteristic.
- 100 kA maximum DC breaking capacity.
- Cylindrical 20 × 127 mm fuse size.
- Ferrule terminals for clip mounting.
- Integrated striker indication system.
- RoHS-compliant construction.
Reliable Protection for DC Control and Auxiliary Circuits
High-voltage DC control and monitoring circuits require protective devices capable of rapidly interrupting faults before excessive energy reaches sensitive components. The Mersen A089493 uses a fast-acting gR characteristic to provide full-range protection against overloads and high short-circuit currents.
Its high breaking capacity, compact cylindrical design and integrated striker make it suitable for installation within converters, industrial power supplies and other electrical systems where dependable fault isolation and fuse-status indication are required.
Typical Applications
- Industrial DC auxiliary circuits.
- Control and automation circuits.
- Measuring and monitoring devices.
- Power conversion equipment.
- Industrial rectifier systems.
- DC power supplies.
- Renewable energy conversion equipment.
- High-voltage DC distribution panels.
