The FR10GR69V20 fuse offers rapid response to overloads and short circuits in demanding industrial and power electronics applications, operating reliably at up to 690VAC with a 20A rating.
£8.40
The Mersen FR10GR69V20, also identified by item number E1014580, is a high-speed Protistor® cylindrical semiconductor fuse engineered to protect sensitive power electronic equipment against damaging overload and short-circuit currents. Its compact design, rapid operation and high interrupting capacity make it suitable for industrial systems where dependable semiconductor protection is essential.
This fuse has a rated current of 20 A and an IEC rated voltage of 690 V AC. Its gR full-range operating characteristic provides protection against both small overload currents and high short-circuit currents, helping safeguard semiconductor devices throughout a broad range of fault conditions.
With a standard 10 × 38 mm cylindrical format, the FR10GR69V20 can be installed in compatible fuse clips and cylindrical fuse holders. Its ceramic body, silver-plated copper ferrules and low I²t performance support reliable operation in inverters, uninterruptible power supplies, variable-speed drives and other industrial power-conversion equipment.
High-speed fuses such as the Mersen FR10GR69V20 are designed to interrupt fault currents before excessive thermal energy can damage semiconductor devices. Its current-limiting operation and low I²t values help protect components such as diodes, thyristors, rectifiers and insulated-gate bipolar transistors.
Unlike partial-range semiconductor fuses, the gR characteristic provides full-range protection against both overload and short-circuit conditions. This makes the FR10GR69V20 a versatile protection solution for compact power-conversion equipment, industrial motor controls and automation systems operating at up to 690 V AC.
| Item number | E1014580 |
|---|---|
| Catalogue No | FR10GR69V20 |
| Description | High-Speed Cylindrical Fuse Protistor® Size 10x38 gR 690VAC IEC 20A |
| EAN/UPC Code | 3605340501025 |
| Rated voltage AC IEC | 690 V |
| Ampere Rating | 20 A |
| RoHS Compliant | Yes |
| AC or DC | AC |
| Speed/Characteristic | gR |
| Fuse Size | 10x38 |
| Mounting | Clip |
| Clearing I2t At Rated Voltage | 245 A²s |
| Melting I2t | 39 A²s |
| AC Max I.R./Breaking Capacity | I1: 160 kA |
| Connection/Terminal Material | Silver-Plated Copper |
| Connection/Terminal Type | Ferrule |
| Product Diameter | 10.3 mm |
| Product Length | 39.2 mm |
| Sell Pack Quantity | 10 EA |
| Sell Pack Weight | 0.08 kg |
| Sell Pack Width | 55 mm |
| Sell Pack Length | 80 mm |
| Sell Pack Height | 15 mm |
| Product group | Semiconductor Protection Fuses |
| Body/Insulating Material | Ceramic |
| Product Weight | 0.008 kg |
| Power Dissipation at Rated Current Value | 3.7 W |
| HS Code | 85361050 |
| Country of Manufacture | France |
The Mersen FR10GR69V20 is used to protect semiconductor devices in inverters, UPS equipment, variable-speed drives and other industrial power-electronic systems.
The FR10GR69V20 has a rated current of 20 A and an IEC rated voltage of 690 V AC.
The gR classification identifies a high-speed, full-range semiconductor fuse that protects against both overload currents and short-circuit currents.
The fuse uses the internationally recognised 10 × 38 mm cylindrical format and should be installed in a compatible fuse holder or fuse clip.
The Mersen FR10GR69V20 has a high AC breaking capacity of 160 kA, allowing it to interrupt substantial prospective fault currents safely.
Mersen Protistor® high-speed fuses are widely specified by machine builders, panel manufacturers and industrial engineers for dependable protection of sensitive semiconductor devices and power-conversion equipment.
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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...
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...