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MERSEN FUSE 6,9 GRB 17/80 6,9GRB17/80
Reliable Protistor® 17×49 gR 690VAC IEC 80A fuse-link for semiconductor and industrial power circuit protection with high breaking capacity and BS compliance.
£19.30
Why Choose the Mersen J220969 Protistor® High Speed Semiconductor Fuse?
The Mersen J220969 is a Protistor® BS88-4 high speed semiconductor fuse designed to provide comprehensive protection for sensitive power semiconductor devices. Featuring a gR operating class, it provides both overload and short-circuit protection for power electronics including IGBTs, thyristors, diodes and rectifiers, making it ideal for demanding industrial applications.
Manufactured in a 17 × 49 mm British Standard fuse-link, the J220969 combines an 80 A current rating with a 690 V AC IEC voltage rating. It offers extremely high breaking capacity, excellent current limitation and reliable semiconductor protection whilst enabling selective coordination within distribution circuits. The fuse complies with IEC 60269-1, IEC 60269-4 and BS88-4 standards.
Designed for industrial drives, UPS systems, power converters and other semiconductor-based equipment, the Mersen J220969 is a dependable solution where fast fault clearance and maximum equipment protection are essential.
Key Advantages
- High speed Protistor® semiconductor protection fuse.
- 80 A current rating.
- 690 V AC IEC rated voltage.
- gR operating class providing overload and short-circuit protection.
- Extremely high breaking capacity of 200 kA.
- BS88-4 construction for easy installation into compatible fuse holders.
Key Features
- Mersen Protistor® BS88-4 series.
- Manufacturer part number J220969.
- Catalogue number BS17GB69V80.
- 80 A rated current.
- 690 V AC IEC / 700 V AC UL / 600 V DC UL.
- gR operating class.
- 17 × 49 mm British Standard fuse-link.
- Ceramic body with extremely high interrupting capacity.
Reliable Protection for Industrial Power Electronics
Modern semiconductor devices require protection capable of responding within milliseconds during fault conditions. The Mersen Protistor® range is engineered to minimise let-through energy, helping prevent catastrophic semiconductor failure whilst improving equipment reliability and reducing maintenance costs.
The J220969 uses a gR operating class, enabling both overload and short-circuit protection for semiconductor devices while providing excellent coordination with other protective devices installed within industrial distribution systems.
Typical Applications
- Variable frequency drives.
- Industrial power converters.
- UPS systems.
- Industrial rectifiers.
- Renewable energy power conversion equipment.
- Semiconductor motor control systems.
Technical Specifications
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| Fuse Type | Semiconductor | |
|---|---|---|
| Fuse Size | 17x49 mm | |
| Voltage | 690 V | |
| Item number | J220969 | |
| Catalogue No | BS17GB69V80 | |
| Description | British Standard fuse-link Protistor® 17x49 gR 690VAC IEC 80A | |
| EAN/UPC Code | 3605340248661 | |
| Rated voltage AC UL | 700 V | |
| Rated voltage DC UL | 600 V | |
| Rated voltage AC IEC | 690 V | |
| Ampere Rating | 80 A | |
| AC or DC | AC | |
| Fuse Size | 17x49 | |
| Mounting | Bolted | |
| Clearing I2t At Rated Voltage | 3900 A²s | |
| Melting I2t | 620 A²s | |
| AC Max I.R./Breaking Capacity | I1: 200 kA | |
| Design Details | gRB | |
| Connection/Terminal Material | Copper | |
| Connection/Terminal Type | L Brackets | |
| Product Diameter | 18.5 mm | |
| Product Length | 77.2 mm | |
| Sell Pack Quantity | 10 EA | |
| Sell Pack Weight | 0.39 kg | |
| Sell Pack Width | 100 mm | |
| Sell Pack Length | 195 mm | |
| Sell Pack Height | 25 mm | |
| Product group | Semiconductor Protection Fuses | |
| Body/Insulating Material | Ceramic | |
| Product Weight | 0.039 kg | |
| Power Dissipation at Rated Current Value | 17 W | |
| HS Code | 85361090 | |
| Country of Manufacture | India |
Frequently Asked Questions
What is the Mersen J220969 used for?
The Mersen J220969 is a high speed semiconductor fuse designed to provide overload and short-circuit protection for power semiconductor devices including IGBTs, thyristors, rectifiers and diodes.
What is the current rating of the J220969?
The fuse has a rated current of 80 A.
What voltage is the J220969 rated for?
The fuse is rated at 690 V AC (IEC), 700 V AC (UL) and 600 V DC (UL).
What does the gR operating class mean?
The gR operating class provides both overload and short-circuit protection for semiconductor devices, unlike aR fuses which provide short-circuit protection only.
Where is the J220969 commonly installed?
It is commonly installed in industrial drives, UPS systems, power converters, rectifiers and other semiconductor-based power electronic equipment.
Trusted for Semiconductor Protection Worldwide
Mersen Protistor® semiconductor fuses are trusted by OEMs and industrial engineers worldwide for providing rapid fault interruption, excellent current limitation and dependable protection of critical power electronic equipment.
