Engineered for reliable protection of power semiconductors and critical industrial circuits, the FR14GR69V10T delivers rapid fault interruption with a 10A gR rating at up to 690VAC, ensuring maximum equipment uptime and system safety.
£14.50
The Mersen FR14GR69V10T is a premium Protistor® high-speed semiconductor protection fuse with striker, engineered to provide exceptionally fast, full-range protection for sensitive power electronic equipment. Designed in accordance with IEC 60269-1 and IEC 60269-4, this gR characteristic fuse safeguards semiconductor devices against both overloads and short-circuit faults while minimising let-through energy to maximise equipment reliability.
Part of Mersen's trusted 14 × 51 mm Protistor® series, the FR14GR69V10T is ideal for protecting IGBTs, thyristors, SCRs, diodes and rectifiers used in variable speed drives, UPS systems, industrial inverters, converters and renewable energy installations. The integrated striker indicator provides rapid mechanical blown-fuse indication and can be used with compatible signalling accessories for simplified maintenance.
Featuring a 10 A current rating, 690 V AC IEC / 700 V AC UL rated voltage and an impressive 160 kA breaking capacity, the FR14GR69V10T delivers dependable semiconductor protection in demanding industrial environments.
The Protistor® 14 × 51 mm gR range has been specifically developed to protect sensitive semiconductor devices against damaging fault currents. Its fast-acting construction provides comprehensive protection from overloads and short circuits, reducing downtime and extending the operational life of valuable power electronic equipment.
The integrated striker indicator enables quick identification of an operated fuse, helping maintenance personnel minimise service interruptions and improve system availability.
| Item number | H1017182 |
|---|---|
| Catalogue No | FR14GR69V10T |
| Description | High-Speed Cylindrical Fuse Protistor® Size 14x51 gR 690VAC IEC 10A With Striker |
| EAN/UPC Code | 3605340506792 |
| Rated voltage AC IEC | 690 V |
| Ampere Rating | 10 A |
| RoHS Compliant | Yes |
| AC or DC | AC |
| Speed/Characteristic | gR |
| Fuse Size | 14x51 |
| Mounting | Clip |
| Clearing I2t At Rated Voltage | 45 A²s |
| Melting I2t | 4.3 A²s |
| AC Max I.R./Breaking Capacity | I1: 160 kA |
| Indication System | Yes |
| Indication System Type | Striker |
| Connection/Terminal Material | Silver-Plated Copper |
| Connection/Terminal Type | Ferrule |
| Product Diameter | 14.3 mm |
| Product Length | 51 mm |
| Sell Pack Quantity | 10 EA |
| Sell Pack Weight | 0.2 kg |
| Sell Pack Width | 75 mm |
| Sell Pack Length | 104 mm |
| Sell Pack Height | 16 mm |
| Product group | Semiconductor Protection Fuses |
| Body/Insulating Material | Ceramic |
| Product Weight | 0.02 kg |
| Power Dissipation at Rated Current Value | 2.95 W |
| HS Code | 85361010 |
| Country of Manufacture | Tunisia |
It is a high-speed gR semiconductor protection fuse designed to protect IGBTs, SCRs, thyristors, rectifiers and other sensitive power semiconductor devices.
The FR14GR69V10T has a rated current of 10 A.
The integrated striker provides mechanical blown-fuse indication and can be used with compatible signalling accessories for faster maintenance.
The fuse is rated at 690 V AC (IEC) and 700 V AC (UL).
It is commonly installed in industrial drives, UPS systems, inverters, converters and other semiconductor-based power electronic equipment.
Mersen Protistor® semiconductor fuses are trusted worldwide by OEMs, panel builders and electrical engineers for their outstanding fault interruption capability, low let-through energy and dependable protection of critical power electronic systems.
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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...