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MERSEN FUSE 2,5 URZ 17 P 125 2,5URZ17P125
Fast-acting British Standard Protistor® fuse-link with integrated striker for semiconductor protection, rated 125A at 250V AC, UL approved, with ceramic body and copper L bracket terminals.
£31.14
Why Choose the Mersen Q097557 Protistor® High-Speed Semiconductor Fuse?
The Mersen Q097557 is a Protistor® British Standard high-speed semiconductor fuse designed to provide rapid protection for sensitive power semiconductor devices against damaging short-circuit and overcurrent conditions. Manufactured to IEC 60269-1 and IEC 60269-4 standards, it delivers exceptionally fast fault interruption for demanding industrial power electronic applications.
Part of the trusted Protistor® BS88-4 17 × 27 mm series, the Q097557 is specifically engineered for protecting variable frequency drives, inverters, converters, rectifiers and UPS systems. Its high-speed operating characteristic limits fault energy, helping to protect expensive semiconductor devices while improving equipment reliability and reducing downtime.
Featuring a 125 A current rating, 250 V AC IEC / UL rating and an integrated striker indicator, the Mersen Q097557 (BS17UZ25V125P) is suitable for industrial automation, motor control and power conversion systems requiring dependable semiconductor protection.
Key Advantages
- High-speed semiconductor protection fuse.
- 125 A current rating.
- 250 V AC IEC and UL rated.
- Integrated striker for fuse operation indication.
- Very high breaking capacity for demanding industrial applications.
- Suitable for drives, UPS systems, converters and industrial inverters.
Key Features
- Mersen Protistor® BS88-4 series.
- Catalogue number: BS17UZ25V125P.
- 125 A rated current.
- 250 V AC IEC / UL rated voltage.
- aR high-speed semiconductor protection.
- 17 × 27 mm British Standard fuse-link.
- Integrated striker indicator.
- Ceramic body with industrial-grade construction.
Reliable Protection for Power Electronics
High-speed semiconductor fuses are engineered to interrupt fault currents before excessive thermal and electrical stress can damage sensitive semiconductor devices. Their rapid operation helps improve equipment reliability while reducing maintenance costs and unplanned downtime.
The Mersen Protistor® range is widely specified by OEMs, panel builders and industrial engineers for protecting variable frequency drives, converters, rectifiers, UPS systems and other power electronic equipment where dependable semiconductor protection is essential.
Typical Applications
- Variable frequency drives (VFDs).
- Industrial power converters.
- UPS systems.
- Industrial inverter systems.
- Motor control equipment.
- Industrial automation and control panels.
Technical Specifications
Tick the specs you need, then view products that match.
| Fuse Indication | Striker | |
|---|---|---|
| Fuse Type | Semiconductor | |
| Fuse Size | 17x27 mm | |
| Fuse Class | aR | |
| Voltage | 250 V | |
| Item number | Q097557 | |
| Catalogue No | BS17UZ25V125P | |
| Description | British Standard fuse-link Protistor® 17x27 aR 250V AC UL 125A With Striker | |
| EAN/UPC Code | 3605340147025 | |
| Rated voltage AC UL | 250 V | |
| Rated voltage DC UL | 250 V | |
| Rated voltage AC IEC | 250 V | |
| Ampere Rating | 125 A | |
| RoHS Compliant | Yes | |
| AC or DC | AC | |
| Speed/Characteristic | aR | |
| Fuse Size | 17x27 | |
| Mounting | Bolted | |
| Clearing I2t At Rated Voltage | 6920 A²s | |
| Melting I2t | 850 A²s | |
| AC Max I.R./Breaking Capacity: I1 | 250 kA | |
| Indication System | Yes | |
| Indication System Type | Striker | |
| Connection/Terminal Material | Copper | |
| Connection/Terminal Type | L Brackets | |
| Product Diameter | 18.5 mm | |
| Product Width | 27 mm | |
| Product Length | 54.4 mm | |
| Product Height | 24 mm | |
| Sell Pack Quantity | 3 EA | |
| Sell Pack Weight | 0.1299 kg | |
| Sell Pack Width | 110 mm | |
| Sell Pack Length | 130 mm | |
| Sell Pack Height | 40 mm | |
| Product group | Semiconductor Protection Fuses | |
| Body/Insulating Material | Ceramic | |
| Product Weight | 0.0433 kg | |
| Power Dissipation at Rated Current Value | 12.3 W | |
| HS Code | 85361090 | |
| Country of Manufacture | India |
Frequently Asked Questions
What is the Mersen Q097557 used for?
The Mersen Q097557 is designed to protect sensitive semiconductor devices used in industrial drives, converters, UPS systems and other power electronic equipment.
What is the current rating of the Q097557?
The fuse has a 125 A current rating.
What voltage is the Q097557 rated for?
The Q097557 is rated for 250 V AC to IEC and UL standards.
What does the striker indicator do?
The integrated striker provides a mechanical indication that the fuse has operated, making maintenance and fault identification quicker and easier.
Where is the Q097557 typically installed?
It is commonly installed in variable frequency drives, converters, rectifiers, UPS systems and other industrial power electronic equipment requiring high-speed semiconductor protection.
Trusted for Industrial Power Protection
Mersen Protistor® semiconductor fuses are trusted worldwide by machine builders, panel manufacturers and maintenance engineers to deliver dependable protection for critical industrial power electronic equipment.
