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MERSEN FUSE 6,921 CP GR 22.58 0050 FR22GR69V50T
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.
£11.38
Why Choose the Mersen FR22GR69V50T Protistor® High-Speed Fuse?
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.
Key Advantages
- High-speed gR fuse designed for power semiconductor protection.
- 50 A current rating for industrial power-electronic equipment.
- 690 V AC IEC rated voltage.
- Integrated striker indication system for rapid fault identification.
- 160 kA breaking capacity for high prospective fault currents.
- Low energy let-through helps protect sensitive semiconductor components.
Key Features
- Mersen Protistor® 22 × 58 gR series.
- 50 A rated current.
- 690 V AC IEC voltage rating.
- gR full-range semiconductor fuse characteristic.
- 160 kA maximum AC breaking capacity.
- Integrated striker-type fuse indication.
- Silver-plated copper ferrule terminals.
- Durable ceramic insulating body.
Reliable Protection for Power Electronics
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.
Typical Applications
- Variable frequency drives and motor-control systems.
- Industrial power converters and rectifiers.
- Solar and industrial inverter systems.
- Uninterruptible power supplies.
- Semiconductor protection circuits.
- Industrial automation and control panels.
Technical Specifications
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| Fuse Indication | Striker | |
|---|---|---|
| Fuse Type | Semiconductor | |
| Fuse Size | 22x58 mm | |
| Fuse Class | gR | |
| Voltage | 690 V | |
| 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 |
Frequently Asked Questions
What is the Mersen FR22GR69V50T used for?
It is a high-speed fuse designed to protect power semiconductor devices in industrial drives, converters, inverters, UPS equipment and other power-electronic systems.
What is the current rating of this fuse?
The Mersen FR22GR69V50T has a rated current of 50 A.
What voltage is the FR22GR69V50T rated for?
The fuse is rated for operation at up to 690 V AC under IEC specifications.
What does the T suffix indicate?
The T suffix identifies the version equipped with an integrated striker indication system, which provides mechanical indication when the fuse has operated.
What does the gR fuse classification mean?
The gR classification indicates a full-range high-speed fuse designed to protect semiconductor devices against both overload and short-circuit currents.
Trusted by Industrial Engineers Worldwide
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.
