High-speed Protistor® fuse with size 70 square body, rated 690VAC and 160A, featuring striker indication and DIN 110 blade terminals for industrial power electronic protection.
£116.74
The Mersen R301591, catalogue number PC70GB69V160D1A, is a premium square body semiconductor protection fuse engineered to provide exceptionally fast fault interruption for sensitive power electronic equipment. Part of the renowned Mersen Protistor® Size 70 gR 690 VAC series, it delivers full-range protection against overloads and short circuits, helping maximise the reliability of industrial power conversion systems.
Manufactured with pure silver fuse elements embedded in high-grade silica sand, the R301591 provides outstanding current limiting performance and low let-through energy. Silver-plated contact surfaces and an integrated striker indicator further enhance reliability, making it an excellent choice for critical industrial applications where equipment protection and uptime are essential.
With a rated current of 160 A and a 690 V AC IEC voltage rating, the Mersen R301591 is ideally suited for protecting semiconductor devices in variable speed drives, converters, UPS systems and renewable energy installations.
High-speed semiconductor fuses are specifically designed to interrupt fault currents before sensitive semiconductor devices suffer thermal or electrical damage. Their exceptional current limiting performance helps extend equipment life while reducing downtime and maintenance costs.
The Mersen Protistor® range is widely specified for industrial automation, renewable energy, motor drives and power conversion systems where dependable protection is critical to maintaining safe and reliable operation.
| Current | 11 A |
|---|---|
| Item number | R301591 |
| Catalogue No | PC70GB69V160D1A |
| Description | Square Body High-Speed Fuse Protistor® Size 70 gR 690VAC IEC 160A With Striker DIN 110 Blades |
| EAN/UPC Code | 3605340343632 |
| Rated voltage AC IEC | 690 V |
| Ampere Rating | 160 A |
| RoHS Compliant | Yes |
| AC or DC | AC |
| Speed/Characteristic | gR |
| Fuse Size | 70 |
| Mounting | Bolted |
| Clearing I2t At Rated Voltage | 25000 A²s |
| Melting I2t | 4232 A²s |
| AC Max I.R./Breaking Capacity | I1: 150 kA |
| Indication System | Yes |
| Indication System Type | Striker |
| Connection/Terminal Material | Silver-Plated Copper |
| Connection/Terminal Type | DIN 110 Blades |
| Product Width | 39 mm |
| Product Length | 133.4 mm |
| Product Height | 46 mm |
| Sell Pack Quantity | 3 EA |
| Sell Pack Weight | 1.0899 kg |
| Sell Pack Width | 130 mm |
| Sell Pack Length | 50 mm |
| Sell Pack Height | 140 mm |
| Product group | Semiconductor Protection Fuses |
| Body/Insulating Material | Ceramic |
| Product Weight | 0.3633 kg |
| Power Dissipation at Rated Current Value | 29 W |
| HS Code | 85361090 |
| Country of Manufacture | France |
The R301591 is designed to provide full-range protection for semiconductor devices used in industrial power conversion and motor control equipment.
This fuse has a 160 A current rating.
The fuse is rated for operation on 690 V AC IEC systems.
The Mersen R301591 features DIN 110 blade terminals for secure bolted installation.
Yes. It incorporates an integrated striker indication system that can be used with compatible monitoring accessories.
Mersen Protistor® semiconductor fuses are trusted by engineers and OEM manufacturers worldwide for delivering rapid fault protection, outstanding reliability and dependable performance in critical industrial power electronics.
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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...