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MERSEN FUSE 6,9 GRB 17/90 BS17GB69V90
The Protistor® 17×49 gR fuse-link delivers fast, reliable protection for high-voltage electrical circuits up to 690VAC. Rated at 90A with a breaking capacity of 200 kA, it meets BS88 and IEC standards.
£22.37
Why Choose the Mersen K220970 High-Speed Semiconductor Fuse?
The Mersen K220970 (BS17GB69V90) is a Protistor® British Standard high-speed semiconductor fuse designed to provide ultra-fast protection for sensitive power electronic equipment. It features a 90 A current rating, 690 VAC IEC voltage rating and 17 × 49 mm fuse size, making it suitable for demanding industrial semiconductor protection applications.
Manufactured by Mersen, this gR class semiconductor fuse is engineered to protect power semiconductors against both overload and short-circuit faults. Its high breaking capacity and low let-through energy help minimise damage to expensive semiconductor devices while improving system reliability.
The K220970 complies with IEC 60269-1 and IEC 60269-4 requirements for semiconductor protection and is suitable for use in variable speed drives, UPS systems, inverters, rectifiers and other industrial power conversion equipment.
Key Advantages
- Genuine Mersen Protistor® BS17GB69V90 semiconductor fuse.
- 90 A rated current.
- 690 VAC IEC / 700 VAC UL voltage rating.
- Ultra-fast gR semiconductor protection.
- High interrupting capacity up to 200 kA.
- Excellent current-limiting characteristics.
- Protects sensitive power semiconductor devices against overloads and short circuits.
Key Features
- Manufacturer: Mersen
- Manufacturer Part Number: K220970
- Catalogue Number: BS17GB69V90
- Series: Protistor® BS88-4
- Fuse Class: gR high-speed semiconductor fuse
- Current Rating: 90 A
- Rated Voltage (IEC): 690 VAC
- Rated Voltage (UL): 700 VAC AC / 600 VDC
- Fuse Size: 17 × 49 mm
- Mounting: Bolted with L-bracket terminals
Typical Applications
- Variable frequency drives (VFDs).
- Variable speed drives (VSDs).
- Industrial inverters.
- Power converters.
- Rectifiers.
- UPS systems.
- Soft starters.
- DC drive systems.
- Industrial power supplies.
- Protection of IGBT, SCR, thyristor and diode assemblies.
Technical Specifications
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| Fuse Type | Semiconductor | |
|---|---|---|
| Fuse Size | 17x49 mm | |
| Voltage | 690 V | |
| Item number | K220970 | |
| Catalogue No | BS17GB69V90 | |
| Description | British Standard fuse-link Protistor® 17x49 gR 690VAC IEC 90A | |
| EAN/UPC Code | 3605340248685 | |
| Rated voltage AC UL | 700 V | |
| Rated voltage DC UL | 600 V | |
| Rated voltage AC IEC | 690 V | |
| Ampere Rating | 90 A | |
| AC or DC | AC | |
| Fuse Size | 17x49 | |
| Mounting | Bolted | |
| Clearing I2t At Rated Voltage | 5300 A²s | |
| Melting I2t | 840 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 | 20 W | |
| HS Code | 85361090 | |
| Country of Manufacture | India |
Frequently Asked Questions
What is the Mersen K220970 used for?
The Mersen K220970 is a Protistor® high-speed semiconductor fuse designed to protect power semiconductor devices in industrial power electronic equipment.
What is the current rating?
The K220970 has a rated current of 90 A.
What voltage is the fuse rated for?
The fuse is rated at 690 VAC IEC, 700 VAC UL and 600 VDC UL.
What fuse class is the K220970?
This is a gR class high-speed semiconductor fuse providing full-range semiconductor protection.
Which applications is it suitable for?
Typical applications include variable speed drives, UPS systems, inverters, rectifiers, converters and other equipment containing sensitive semiconductor devices.
Trusted Semiconductor Protection
Mersen Protistor® semiconductor fuses are trusted worldwide for delivering exceptionally fast fault clearing, high breaking capacity and reliable protection for modern power electronic systems.
