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MERSEN FUSE 6,9 URS 17/55 6,9URS17/55
MPN: Q075891
Alt. SKU: BS17US69V55
Special Price
£23.18
£19.32
Regular Price
£46.37
MERSEN FUSE 6,9 URS 17/55 6,9URS17/55 is available to buy in increments of 10
Why Choose the Protistor® 17x49 gR 690V AC UL 55A BS17US69V55 Fuse-Link?
The Protistor® 17x49 gR fuse-link is engineered for robust protection in industrial and commercial electrical systems, delivering reliable operation at 690V AC with a 55A rating. Compliant with British Standards and UL listed, it ensures global compatibility and enhanced safety performance in critical applications.
This compact, high-speed fuse-link minimises downtime by offering rapid fault interruption, safeguarding sensitive components in semiconductor and power supply circuits. Its durable construction and consistent performance make it an optimal choice for demanding environments where safety, compliance, and longevity are paramount.
Technical Specifications
- Item number: Q075891
- Catalogue No: BS17US69V55
- Description: British Standard fuse-link Protistor® 17x49 gR 690V AC UL 55A
- EAN/UPC Code: 3605340012606
- Rated voltage AC UL: 700 V
- Rated voltage DC UL: 700 V
- Rated voltage AC IEC: 690 V
- Ampere Rating: 55 A
- AC or DC: AC
- Speed/Characteristic: aR
- Fuse Size: 17x49
- Mounting: Bolted
- Clearing I2t At Rated Voltage: 1970 A²s
- Melting I2t: 210 A²s
- AC Max I.R./Breaking Capacity: I1: 200 kA
- 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: 13.3 W
Product Code: Q075891
Key Benefits
- High breaking capacity of 200 kA ensures reliable protection against short circuits.
- Compact 17x49 mm size allows easy integration into existing fuse holders.
- Compliance with British Standards and UL listing guarantees international safety and quality standards.
- Ceramic body provides excellent insulation and thermal stability.
- Rapid fault interruption minimises equipment damage and downtime.
- Copper L bracket terminals offer secure and efficient electrical connections.
Compatibility
This fuse-link is compatible with standard 17x49 mm fuse holders designed for semiconductor protection fuses. It is suitable for use in electrical panels and equipment requiring British Standard and UL certified fuse-links rated for 690V AC and 55A current. The bolted mounting and L bracket terminals ensure compatibility with industrial power distribution and control systems.
Applications
- Protection of semiconductor devices such as diodes and thyristors.
- Industrial power supplies and motor control circuits.
- Commercial electrical installations requiring high-speed fuse protection.
- Renewable energy systems including solar inverters and converters.
- Automation and process control equipment.
Frequently Asked Questions
What does the 'gR' characteristic mean for this fuse?
The 'gR' characteristic indicates that the fuse is a full-range semiconductor protection fuse designed to protect power semiconductors against overloads and short circuits.
Can this fuse be used in DC applications?
While this fuse has a rated voltage for DC up to 700 V UL, it is primarily designed for AC applications. Ensure compatibility with your specific DC system requirements before use.
What is the significance of the clearing I2t and melting I2t values?
Clearing I2t (1970 A²s) and melting I2t (210 A²s) values indicate the energy let-through during fuse operation, important for coordinating protection with other devices and ensuring semiconductor safety.
How should this fuse be mounted?
This fuse is designed for bolted mounting using L bracket terminals, providing secure and stable electrical connections in industrial fuse holders.
Common Search Terms
Protistor fuse-link, 17x49 fuse, 55A semiconductor fuse, 690V AC fuse, British Standard fuse, UL listed fuse-link, high breaking capacity fuse, ceramic body fuse, industrial electrical fuse, power semiconductor protection.
| Manufacturer Part Number | Q075891 |
|---|---|
| Packed Quantity | 10 |
| Barcode | 3605340012606 |
| Height | 77.2mm |
| Width | 18.5mm |
| Depth | 18.5mm |
| HS Code | 85361050 |
| Country of Manufacture | India |
| Manufacturer | Mersen |
| Alternative Product SKU | BS17US69V55 |
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