Reliable, high-speed Protistor® fuse with gR characteristic for semiconductor protection up to 690 V AC and 50 A, featuring integrated striker indication and compact 22×58 mm size.
£18.97
The Mersen FR22GR69V50T is a high-performance Protistor® high-speed cylindrical semiconductor fuse designed to protect sensitive power semiconductor devices in demanding industrial electrical systems. Its full-range gR operating characteristic provides protection against overload and short-circuit currents, helping to reduce damage to valuable power electronics and minimise equipment downtime.
Manufactured in accordance with IEC 60269-1 and IEC 60269-4, the FR22GR69V50T combines rapid fault interruption with an extremely high breaking capacity. Its robust ceramic body and silver-plated copper ferrule terminals provide dependable electrical performance, while the standard 22 × 58 mm cylindrical format allows straightforward installation in compatible fuse clips and holders.
With a rated current of 50 A and a rated voltage of 690 V AC, this fuse is suitable for industrial drives, power converters, inverters, uninterruptible power supplies and other semiconductor-based equipment. The integrated striker indication system provides clear mechanical fuse-status indication and can support remote signalling or switching when used with compatible accessories.
High-speed semiconductor fuses such as the Mersen FR22GR69V50T interrupt damaging fault currents quickly enough to protect sensitive devices including IGBTs, thyristors, SCRs, diodes and rectifiers. Their low let-through energy helps limit thermal and electrical stress before it can cause extensive damage to semiconductor assemblies.
The gR full-range characteristic allows the fuse to provide protection against both overload and short-circuit conditions. This makes the FR22GR69V50T suitable for critical industrial systems that require dependable circuit protection, rapid maintenance diagnostics and high fault-current interruption capability.
| Item number | C1018626 |
|---|---|
| Catalogue No | FR22GR69V50T |
| Description | High-Speed Cylindrical Fuse Protistor® Size 22x58 gR 690VAC IEC 50A With Striker |
| EAN/UPC Code | 3605340513912 |
| Rated voltage AC IEC | 690 V |
| Ampere Rating | 50 A |
| RoHS Compliant | Yes |
| AC or DC | AC |
| Speed/Characteristic | gR |
| Fuse Size | 22x58 |
| Mounting | Clip |
| Clearing I2t At Rated Voltage | 2050 A²s |
| Melting I2t | 292 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 | 22.2 mm |
| Product Length | 58 mm |
| Sell Pack Quantity | 10 EA |
| Sell Pack Weight | 0.6 kg |
| Sell Pack Width | 111 mm |
| Sell Pack Length | 117 mm |
| Sell Pack Height | 23 mm |
| Product group | Semiconductor Protection Fuses |
| Body/Insulating Material | Ceramic |
| Product Weight | 0.06 kg |
| Power Dissipation at Rated Current Value | 11.8 W |
| HS Code | 85361050 |
| Country of Manufacture | Tunisia |
It is a high-speed fuse designed to protect power semiconductor devices in industrial drives, converters, inverters, UPS equipment and other power-electronic systems.
The Mersen FR22GR69V50T has a rated current of 50 A.
The fuse is rated for operation at up to 690 V AC under IEC specifications.
The T suffix identifies the version equipped with an integrated striker indication system, which provides mechanical indication when the fuse has operated.
The gR classification indicates a full-range high-speed fuse designed to protect semiconductor devices against both overload and short-circuit currents.
Mersen Protistor® high-speed fuses are widely specified by electrical engineers, automation specialists and equipment manufacturers for dependable semiconductor protection in critical power-electronic systems.
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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...