Why Choose the Mersen D089496 FD20GB100V20T High-Speed Fuse?
The Mersen D089496, catalogue number FD20GB100V20T, is a high-speed Protistor® cylindrical semiconductor fuse engineered specifically for protecting sensitive equipment in high-voltage DC systems. Featuring a fast-acting, full-range gR (gRB) operating characteristic, it provides dependable protection against overloads and short circuits while minimising the energy transferred to valuable semiconductor devices.
Rated at 20 A and 1000 V DC, the D089496 is ideally suited for auxiliary circuits, control systems, measuring equipment and monitoring devices used in industrial power conversion equipment. Its low let-through energy and current-limiting performance help improve system reliability while protecting expensive electronic components.
Manufactured in the internationally recognised 20 × 127 mm cylindrical format, the fuse incorporates ferrule terminals for clip mounting together with an integrated striker for mechanical or remote indication. Its high 100 kA DC breaking capacity provides dependable fault interruption in demanding industrial environments.
Key Advantages
- Fast-acting full-range gR semiconductor protection.
- 20 A rated current for auxiliary and control circuits.
- 1000 V DC voltage rating.
- 100 kA DC breaking capacity.
- Low I²t helps reduce stress on semiconductor devices.
- Integrated striker provides convenient fuse-operation indication.
- Current-limiting performance improves equipment protection.
- Compact 20 × 127 mm cylindrical design for global compatibility.
Key Features
- Mersen Protistor® high-speed fuse series.
- FD20GB100V20T catalogue reference.
- 20 A rated current.
- 1000 V DC rated voltage.
- gR (gRB) operating characteristic.
- 100 kA maximum DC breaking capacity.
- Cylindrical 20 × 127 mm fuse size.
- Ferrule terminals with silver-plated copper contacts.
- Integrated striker indication system.
- Ceramic body with RoHS-compliant construction.
Reliable Protection for High-Voltage DC Circuits
Industrial auxiliary and monitoring circuits require protective devices capable of interrupting fault currents before excessive energy reaches sensitive semiconductor equipment. The Mersen D089496 uses a fast-acting gR characteristic to deliver full-range protection while limiting fault energy and reducing equipment damage.
Its high DC voltage capability, compact cylindrical construction and integrated striker make it suitable for converters, renewable energy systems, battery storage equipment and industrial DC power supplies where dependable fault isolation is essential.
Typical Applications
- Industrial DC auxiliary circuits.
- Control and automation systems.
- Measuring and monitoring equipment.
- Power converters.
- Industrial rectifiers.
- Battery energy storage systems.
- Renewable energy power electronics.
- High-voltage DC power supplies.
