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MERSEN FUSE 6,9 URS 17/55 6,9URS17/55
The Protistor® 17×49 gR fuse-link offers robust protection in industrial and commercial electrical systems at 690V AC with a 55A rating, compliant with British Standards and UL listed.
£23.39
Why Choose the Mersen Q075891 Industrial Fuse?
The Mersen Q075891 is an industrial electrical protection fuse intended to safeguard compatible circuits and equipment against potentially damaging overcurrent and short-circuit conditions. Manufactured by Mersen, it is suitable for maintenance, repair and replacement applications where dependable circuit interruption is essential.
The Q075891 operates by disconnecting the protected circuit when excessive current causes its internal fuse element to melt. This controlled interruption helps reduce damage to electrical components, conductors and connected equipment while supporting safer and more reliable system operation.
The Mersen Q075891 fuse-link should be installed in a compatible and correctly rated fuse holder or mounting assembly. Before installation, the fuse’s current rating, voltage rating, utilisation category, breaking capacity, dimensions and connection arrangement should be checked against the original equipment documentation.
Key Advantages
- Industrial fuse designed for dependable circuit protection.
- Helps interrupt damaging overcurrent and short-circuit faults.
- Manufactured by Mersen for professional electrical applications.
- Suitable for maintenance, repair and replacement projects.
- Replaceable fuse-link construction supports straightforward servicing.
- Helps protect wiring, electrical components and connected equipment.
Key Features
- Mersen industrial circuit-protection product.
- Manufacturer reference: Q075891.
- Designed for overcurrent and short-circuit protection.
- Robust industrial fuse-link construction.
- Suitable for compatible electrical equipment.
- Designed for installation in an appropriate fuse holder.
- Suitable for replacement and preventative maintenance applications.
- Electrical and physical compatibility must be confirmed before installation.
Reliable Protection for Industrial Electrical Equipment
Industrial fuse-links provide essential circuit protection by interrupting excessive current before it causes extensive damage to conductors or connected equipment. Once the fuse element operates, the affected circuit is isolated and the fuse must be replaced with a correctly specified equivalent.
Correct fuse selection is critical to electrical safety and system performance. A replacement fuse should match the specified current and voltage ratings, operating characteristic, breaking capacity, physical dimensions and connection format required by the equipment manufacturer.
Typical Applications
- Industrial machinery and production equipment.
- Electrical control and distribution panels.
- Motor-control and automation systems.
- Power-control and conversion equipment.
- Maintenance and replacement fuse applications.
- Original equipment manufacturer assemblies.
Technical Specifications
Tick the specs you need, then view products that match.
| Fuse Type | Semiconductor | |
|---|---|---|
| Fuse Size | 17x49 mm | |
| Fuse Class | aR | |
| Voltage | 690 V | |
| 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 | |
| HS Code | 85361050 | |
| Country of Manufacture | India |
Frequently Asked Questions
What is the Mersen Q075891 used for?
The Mersen Q075891 is used to provide overcurrent and short-circuit protection in compatible industrial electrical equipment.
Can the Q075891 be used as a replacement fuse?
Yes. It may be used as a replacement when its part number, electrical ratings, operating characteristic, dimensions and mounting configuration match the original fuse specification.
Where is the Mersen Q075891 typically installed?
It is typically installed in a compatible fuse holder or mounting assembly within industrial machinery, electrical panels or power-control equipment.
How should compatibility be checked?
Check the current rating, voltage rating, breaking capacity, fuse class, dimensions and connection arrangement against the equipment documentation before installation.
Can a differently rated fuse be used instead?
A differently rated fuse should not be installed unless the alternative has been approved by the equipment manufacturer or a suitably qualified electrical engineer.
Trusted for Industrial Circuit Protection
Mersen electrical protection products are widely used by engineers, maintenance teams, panel builders and equipment manufacturers to support dependable circuit protection in demanding industrial systems.
