This high-speed cylindrical fuse delivers robust circuit protection for demanding industrial and power distribution applications, ensuring rapid fault response and minimising equipment downtime. Rated at 125A with a 690 V AC rating and a breaking capacity of 160 kA.
£26.02
The Mersen FR22GR69V125 is a premium Protistor® high-speed semiconductor protection fuse designed to provide rapid, full-range protection for sensitive power electronic equipment. Manufactured in accordance with IEC 60269-1 and IEC 60269-4, this cylindrical gR class fuse offers reliable protection against both overloads and short circuits, helping to safeguard costly semiconductor devices while reducing equipment downtime.
As part of the trusted Mersen Protistor® 22 × 58 mm gR series, the FR22GR69V125 is designed for protecting IGBTs, thyristors, diodes and rectifiers used in variable speed drives, UPS systems, industrial inverters and power conversion equipment. Its compact cylindrical design enables simple installation into compatible fuse holders while delivering exceptional fault interruption performance.
With a 125 A current rating, a 690 V AC IEC / 700 V AC UL voltage rating and a 160 kA breaking capacity, the FR22GR69V125 provides dependable semiconductor protection in demanding industrial environments.
Full-range gR semiconductor fuses are specifically designed to protect sensitive power electronic components from both overloads and short-circuit faults. Their fast operating characteristics reduce thermal stress and let-through energy, helping maximise equipment reliability while lowering maintenance costs.
The Mersen Protistor® range is widely specified for industrial automation, renewable energy systems, motor drives and UPS installations where dependable semiconductor protection is essential.
| Item number | G1018561 |
|---|---|
| Catalogue No | FR22GR69V125 |
| Description | High-Speed Cylindrical Fuse Protistor® Size 22x58 gR 690VAC IEC 125A |
| EAN/UPC Code | 3605340513783 |
| Rated voltage AC IEC | 690 V |
| Ampere Rating | 125 A |
| RoHS Compliant | Yes |
| AC or DC | AC |
| Speed/Characteristic | gR |
| Fuse Size | 22x58 |
| Mounting | Clip |
| Clearing I2t At Rated Voltage | 16800 A²s |
| Melting I2t | 3360 A²s |
| AC Max I.R./Breaking Capacity | I1: 160 kA |
| 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 | 22.8 W |
| HS Code | 85361090 |
| Country of Manufacture | Tunisia |
It is a high-speed semiconductor fuse designed to provide full-range protection for power electronic devices including IGBTs, thyristors, rectifiers and inverter circuits.
The FR22GR69V125 has a rated current of 125 A.
The fuse is rated for 690 V AC (IEC) and 700 V AC (UL).
The gR characteristic provides full-range protection against both overload and short-circuit faults for semiconductor devices.
It is commonly installed in variable speed drives, UPS systems, industrial inverters, power converters and semiconductor protection circuits.
Mersen Protistor® semiconductor fuses are trusted by OEMs, panel builders and automation engineers worldwide for their exceptional fault interruption performance, low let-through energy and reliable protection of critical power electronic equipment.
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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...