The Protistor® 17×49 gR fuse-link is engineered for superior protection of industrial power distribution and control systems, ensuring high-speed interruption of faults up to 690V AC. Its BS-standard-compliant design, 80A current rating, and integrated striker facilitate reliable coordination and remote indication.
£69.06
The Mersen F075905, catalogue number BS17US69V80P, is a high-speed Protistor® semiconductor protection fuse designed to provide reliable protection for power semiconductor devices in demanding industrial applications. Manufactured to BS88-4 standards, this fuse offers exceptional breaking capacity and rapid fault clearance to help minimise damage to sensitive equipment such as variable speed drives, UPS systems and power converters.
Designed specifically for protecting semiconductor components, the F075905 combines a compact 17 × 49 mm format with a 690 V AC IEC rating and an 80 A current rating. The integrated striker provides remote indication or operation of associated switching mechanisms, improving maintenance efficiency and system safety.
The Protistor® range is trusted by OEMs and industrial engineers worldwide for protecting rectifiers, inverters, soft starters, DC drives and other power electronic equipment where extremely fast fault interruption is essential.
High-speed semiconductor fuses are designed to clear fault currents rapidly before excessive thermal energy can damage expensive power semiconductor devices. Their extremely low let-through energy helps protect IGBTs, thyristors, diodes and rectifiers from catastrophic failure during short-circuit conditions.
The Mersen Protistor® range is engineered for industrial environments where reliable semiconductor protection is essential. The BS17US69V80P provides dependable performance while supporting improved equipment availability and reduced maintenance costs.
| Item number | F075905 |
|---|---|
| Catalogue No | BS17US69V80P |
| Description | British Standard fuse-link Protistor® 17x49 gR 690V AC UL 80A With Striker |
| EAN/UPC Code | 3605340012873 |
| Rated voltage AC UL | 700 V |
| Rated voltage DC UL | 700 V |
| Rated voltage AC IEC | 690 V |
| Ampere Rating | 80 A |
| AC or DC | AC |
| Speed/Characteristic | aR |
| Fuse Size | 17x49 |
| Mounting | Bolted |
| Clearing I2t At Rated Voltage | 5700 A²s |
| Melting I2t | 625 A²s |
| AC Max I.R./Breaking Capacity | I1: 200 kA |
| Indication System | Yes |
| Indication System Type | Striker |
| Connection/Terminal Material | Copper |
| Connection/Terminal Type | L Brackets |
| Product Diameter | 18.5 mm |
| Product Width | 27 mm |
| Product Length | 77.2 mm |
| Product Height | 24 mm |
| Sell Pack Quantity | 3 EA |
| Sell Pack Weight | 0.18 kg |
| Sell Pack Width | 110 mm |
| Sell Pack Length | 140 mm |
| Sell Pack Height | 40 mm |
| Product group | Semiconductor Protection Fuses |
| Body/Insulating Material | Ceramic |
| Product Weight | 0.06 kg |
| Power Dissipation at Rated Current Value | 15.8 W |
| HS Code | 85361090 |
| Country of Manufacture | India |
The F075905 protects sensitive semiconductor devices including IGBTs, thyristors and rectifiers used in industrial power electronic equipment.
The fuse has a rated current of 80 A.
It is rated for 690 V AC (IEC) and 700 V AC/DC (UL).
The striker provides a mechanical indication when the fuse operates and can also activate auxiliary switching or signalling devices.
The fuse uses the standard 17 × 49 mm BS88-4 format for semiconductor protection applications.
Mersen Protistor® semiconductor fuses are trusted by machine builders, panel manufacturers and industrial engineers for protecting high-value power electronic equipment in demanding applications.
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LED Controls is a specialist distributor of factory automation and industrial controls, supplying OEMs, machine builders, panel builders and end users throughout the UK and worldwide. As a trusted UK distributor for many of the world’s leading automation manufacturers, we provide industrial control products, technical expertise and bespoke automation solutions backed by outstanding customer service.
2025 has been a big year for LED Controls, and our blog has expanded accordingly. We've covered a wide range of topics across industrial control and factory automation this year. From core technology explainers and new product releases to panel building best practice...
2025 has been a big year for LED Controls, and our blog has expanded accordingly. We've covered a wide range of topics across industrial control and factory automation this year. From core technology explainers and new product releases to panel building best practice...