Why Choose the Mersen R086495 Protistor High-Speed Fuse?
The Mersen R086495, catalogue number FD36GB100V32T, is a high-speed cylindrical semiconductor fuse designed to protect sensitive DC power electronic equipment against damaging short-circuit currents. Part of the Mersen Protistor® 36 × 127 mm gR series, it is engineered for railway power systems, auxiliary circuits and industrial DC applications requiring rapid and dependable fault interruption.
This fuse-link combines a low I²t value with reduced power losses to help minimise damage to protected semiconductor components during fault conditions. Its ability to operate reliably at elevated temperatures also supports long service life in demanding electrical installations where equipment availability and protection performance are critical.
With a rated current of 32 A, a rated voltage of 1000 V DC and a maximum DC breaking capacity of 100 kA, the R086495 is suitable for protecting converters, rectifiers, inverters and railway auxiliary power circuits. Its integrated striker provides mechanical fuse operation indication for use with compatible monitoring and signalling equipment.
Key Advantages
- High-speed gR semiconductor fuse for full-range DC circuit protection.
- 32 A rated current for power electronic and auxiliary applications.
- 1000 V DC IEC voltage rating for high-voltage DC equipment.
- Low I²t performance helps minimise damage to semiconductor components.
- Maximum DC breaking capacity of 100 kA.
- Integrated striker indicator supports fuse status monitoring.
- Low power dissipation helps improve electrical system efficiency.
- Designed for reliable operation at elevated temperatures.
Key Features
- Mersen Protistor® high-speed fuse series.
- Manufacturer item number R086495.
- Catalogue number FD36GB100V32T.
- 32 A rated current.
- 1000 V DC IEC rated voltage.
- gR speed and utilisation characteristic.
- gRB design for semiconductor protection.
- Integrated striker for fuse operation indication.
- 36 × 127 mm cylindrical fuse format.
- Silver-plated copper ferrule terminals.
- Clip-mounting configuration.
- RoHS-compliant construction.
Reliable Protection for High-Voltage DC Equipment
Power semiconductor components can suffer permanent damage within milliseconds when exposed to excessive fault current. The Mersen R086495 is designed to interrupt these currents rapidly, limiting the electrical energy transferred to protected devices and reducing the risk of extensive damage to converters, rectifiers and associated equipment.
Its gR characteristic provides full-range semiconductor protection, while the ceramic cylindrical body, low power dissipation and integrated striker make it suitable for demanding railway and industrial DC systems. The fuse can be installed within compatible clips or fuse holders rated for its electrical and dimensional requirements.
Typical Applications
- Railway power and auxiliary circuits.
- Industrial DC converters.
- Semiconductor rectifier assemblies.
- Power inverters and frequency converters.
- DC motor drives and control systems.
- Battery energy storage equipment.
- Renewable energy power conversion systems.
- Industrial automation and power distribution equipment.
