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MERSEN FUSE 6,9 URT 217/140 6,9URT217/140
High-speed gR characteristic fuse-link rated at 690V AC and 140A, compliant with BS88 and UL standards, designed for semiconductor and industrial power distribution protection.
£55.35
Why Choose the Mersen J075908 Protistor® Semiconductor Fuse?
The Mersen J075908 is a high performance Protistor® BS88-4 high speed semiconductor fuse engineered to provide rapid short-circuit protection for sensitive power electronic equipment. Designed specifically for protecting semiconductor devices such as IGBTs, thyristors, diodes and rectifiers, it delivers exceptional current limiting performance and high breaking capacity for demanding industrial applications.
Manufactured as part of the trusted Mersen Protistor® BS88-4 2×17×49 mm range, the J075908 features a gR operating class, enabling protection against both overloads and short circuits. Its British Standard BS88-4 construction allows straightforward installation into compatible fuse holders, making it suitable for OEM equipment, maintenance and replacement projects.
With a 140 A current rating and a 690 V AC IEC voltage rating, the J075908 is ideal for industrial drives, UPS systems, power converters, renewable energy systems and other power electronic installations requiring dependable semiconductor protection.
Key Advantages
- High speed Protistor® semiconductor fuse for power electronic equipment.
- 140 A current rating for demanding industrial applications.
- 690 V AC IEC rated voltage.
- gR operating class providing overload and short-circuit protection.
- Excellent current limiting characteristics reduce semiconductor damage.
- BS88-4 2×17×49 mm format for simple installation.
Key Features
- Mersen Protistor® BS88-4 series.
- 140 A rated current.
- 690 V AC IEC rated voltage.
- 700 V AC / 700 V DC UL rated.
- gR operating class.
- 2×17×49 mm British Standard body.
- Ceramic fuse body.
- Extremely high breaking capacity.
Reliable Protection for Industrial Power Electronics
High speed semiconductor fuses are designed to interrupt fault currents before sensitive electronic components can be damaged. Their exceptional current limiting performance helps minimise thermal stress, reduce repair costs and improve the reliability of industrial power conversion systems.
The Mersen Protistor® BS88-4 range is widely used throughout industrial automation, renewable energy and motor control applications where reliable semiconductor protection and dependable circuit coordination are essential.
Typical Applications
- Variable frequency drives.
- Industrial rectifiers.
- UPS systems.
- Power converters and inverters.
- Renewable energy equipment.
- Industrial motor control systems.
Technical Specifications
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| Fuse Type | Semiconductor | |
|---|---|---|
| Fuse Class | aR | |
| Voltage | 690 V | |
| Item number | J075908 | |
| Catalogue No | BS217UT69V140 | |
| Description | British Standard fuse-link Protistor® 2x17x49 gR 690V AC UL 140A | |
| EAN/UPC Code | 3605340012910 | |
| Rated voltage AC UL | 700 V | |
| Rated voltage DC UL | 700 V | |
| Rated voltage AC IEC | 690 V | |
| Ampere Rating | 145 A | |
| AC or DC | AC | |
| Speed/Characteristic | aR | |
| Fuse Size | 2x17x49 | |
| Mounting | Bolted | |
| Clearing I2t At Rated Voltage | 15700 A²s | |
| Melting I2t | 1730 A²s | |
| AC Max I.R./Breaking Capacity | I1: 200 kA | |
| Connection/Terminal Material | Copper | |
| Connection/Terminal Type | L Brackets | |
| Product Width | 36.7 mm | |
| Product Length | 90.2 mm | |
| Product Height | 18.5 mm | |
| Sell Pack Quantity | 5 EA | |
| Sell Pack Weight | 0.414 kg | |
| Sell Pack Width | 103 mm | |
| Sell Pack Length | 195 mm | |
| Sell Pack Height | 24 mm | |
| Product group | Semiconductor Protection Fuses | |
| Body/Insulating Material | Ceramic | |
| Product Weight | 0.0828 kg | |
| Power Dissipation at Rated Current Value | 28.5 W | |
| HS Code | 85361090 | |
| Country of Manufacture | India |
Frequently Asked Questions
What is the Mersen J075908 used for?
The J075908 provides high speed protection for semiconductor devices used in industrial power electronic equipment.
What is the current rating of the J075908?
The fuse has a 140 A current rating.
What voltage is the fuse rated for?
The J075908 is rated for 690 V AC (IEC) and 700 V AC / 700 V DC (UL).
What does the gR operating class provide?
The gR operating class provides both overload and short-circuit protection for semiconductor devices.
Which applications commonly use this fuse?
The fuse is commonly installed in industrial drives, UPS systems, converters, inverters, rectifiers and renewable energy equipment.
Trusted for Semiconductor Protection Worldwide
Mersen Protistor® semiconductor fuses are trusted by industrial engineers and OEM manufacturers worldwide to provide dependable protection for modern power electronic systems and critical industrial equipment.
