Why Choose the Mersen Q1000100 High Voltage Transformer Back-up Fuse?
The Mersen Q1000100 is a premium DIN high voltage back-up fuse-link developed for dependable transformer protection in medium voltage distribution systems. Identified by catalogue number 45DB72V125PD, it forms part of the trusted Limitor®-PD range and is manufactured to IEC 60282-1 and VDE T402 requirements for high voltage transformer protection.
Designed to interrupt high fault currents safely and reliably, this fuse-link helps protect transformers, switchgear and associated equipment against the damaging effects of short circuits. Its high-quality ceramic body, silver fuse elements and silver-plated copper end caps provide excellent electrical performance and long service life.
Rated at 7.2 kV AC with a 125 A current rating, the Q1000100 features an integrated 80 N striker for mechanical indication and tripping of compatible switchgear. It is ideal for transformer protection within industrial plants, substations and utility power distribution systems.
Key Advantages
- High voltage DIN transformer back-up fuse-link.
- 7.2 kV AC operating voltage.
- 125 A rated current.
- Designed specifically for transformer protection.
- Integrated 80 N striker for indication and tripping.
- Complies with IEC 60282-1 and VDE T402 standards.
- High breaking capacity for dependable fault clearance.
- Manufactured using premium ceramic, silver and copper materials.
Key Features
- Mersen Limitor®-PD high voltage fuse.
- Catalogue number: 45DB72V125PD.
- Rated voltage: 7.2 kV AC.
- Rated current: 125 A.
- Breaking capacity: 63 kA.
- Fuse diameter: 88 mm.
- Fuse body length: 192 mm.
- Integrated 80 N striker.
- Back-up fuse according to IEC 60282-1.
- RoHS compliant.
High voltage back-up fuse-links are designed to clear high fault currents rapidly before they can damage transformers or associated switchgear. Their fast operating characteristics help minimise equipment damage while improving network reliability and reducing downtime.
The Mersen Limitor®-PD range has been used worldwide for decades within medium voltage switchgear, substations and industrial power systems, providing proven protection for transformer installations operating under demanding conditions.
Typical Applications
- Medium voltage transformers.
- Electrical substations.
- Industrial switchgear.
- Power distribution networks.
- Motor control substations.
- Renewable energy installations.
- Utility distribution equipment.
- OEM medium voltage panels.
