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MERSEN FUSE 2,5 URGS 17/75 2.5URGS17/75
The Protistor® 17×27 aR 250V AC UL 75A fuse-link offers reliable semiconductor protection with fast-acting characteristics and robust ceramic construction, suitable for industrial power electronics.
£7.71
Why Choose the Mersen X076656 BS17US25V75 Semiconductor Fuse?
The Mersen X076656 BS17US25V75 is a high-speed Protistor® BS88-4 British Standard semiconductor fuse-link engineered to provide dependable protection for sensitive power semiconductor devices. Featuring an ultra-fast aR operating characteristic, it rapidly clears short-circuit faults to help protect IGBTs, thyristors, diodes, rectifiers and other semiconductor components used in industrial power electronics.
Rated at 75 A with a 250 V AC IEC, 250 V AC UL and 250 V DC UL rating, the BS17US25V75 is ideally suited to variable speed drives, DC drives, UPS systems, rectifiers and industrial power converters. Its compact 17 × 27 mm format allows straightforward installation where space is limited.
Manufactured using Mersen's proven Protistor® technology, the fuse provides excellent current limitation, low let-through energy and an extremely high breaking capacity. The ceramic body and copper L-bracket terminals ensure reliable performance in demanding industrial environments.
Key Advantages
- Ultra-fast aR semiconductor protection.
- 75 A current rating.
- 250 V AC IEC / UL and 250 V DC UL rated.
- Extremely high interrupting capacity.
- Compact 17 × 27 mm British Standard design.
- Low I²t values minimise stress on semiconductor devices.
- Ideal for protecting modern power electronic equipment.
Key Features
- Manufacturer: Mersen
- Series: Protistor® BS88-4
- Model: BS17US25V75
- Manufacturer SKU: X076656
- Fuse class: aR high-speed semiconductor fuse.
- 17 × 27 mm cylindrical body.
- Bolted copper L-bracket terminals.
- Ceramic fuse body.
- Version without striker indicator.
- UL Recognised.
Fast Protection for Power Semiconductor Devices
The Mersen X076656 is designed specifically to interrupt high fault currents before they can damage expensive semiconductor devices. Its ultra-fast aR characteristic limits fault energy and helps maximise the service life of IGBTs, thyristors, rectifier modules and other power electronic assemblies.
As an aR semiconductor fuse, the BS17US25V75 is intended primarily for short-circuit protection. Suitable overload protection should be provided separately where required by the equipment design and applicable electrical standards.
Typical Applications
- Variable frequency drives (VFDs).
- Industrial motor drives.
- Rectifiers.
- Power converters.
- UPS systems.
- DC drives.
- Industrial automation equipment.
- Semiconductor protection circuits.
Technical Specifications
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| Fuse Type | Semiconductor | |
|---|---|---|
| Fuse Size | 17x27 mm | |
| Fuse Class | aR | |
| Voltage | 250 V | |
| Item number | X076656 | |
| Catalogue No | BS17US25V75 | |
| Description | British Standard fuse-link Protistor® 17x27 aR 250V AC UL 75A | |
| EAN/UPC Code | 3605340019612 | |
| Rated voltage AC UL | 250 V | |
| Rated voltage DC UL | 250 V | |
| Rated voltage AC IEC | 250 V | |
| Ampere Rating | 75 A | |
| RoHS Compliant | Yes | |
| AC or DC | AC | |
| Speed/Characteristic | aR | |
| Fuse Size | 17x27 | |
| Mounting | Bolted | |
| Clearing I2t At Rated Voltage | 1990 A²s | |
| Melting I2t | 380 A²s | |
| Connection/Terminal Material | Copper | |
| Connection/Terminal Type | L Brackets | |
| Product Diameter | 18.5 mm | |
| Product Length | 54.4 mm | |
| Sell Pack Quantity | 10 EA | |
| Sell Pack Weight | 0.276 kg | |
| Sell Pack Width | 68 mm | |
| Sell Pack Length | 188 mm | |
| Sell Pack Height | 24 mm | |
| Product group | Semiconductor Protection Fuses | |
| Body/Insulating Material | Ceramic | |
| Product Weight | 0.0276 kg | |
| Power Dissipation at Rated Current Value | 13.6 W | |
| HS Code | 85361090 | |
| Country of Manufacture | India |
Frequently Asked Questions
What is the Mersen X076656 used for?
It provides high-speed short-circuit protection for semiconductor devices used in industrial drives, converters, rectifiers and other power electronic equipment.
What is the current rating of the X076656?
The Mersen X076656 has a rated current of 75 A.
What voltage is this fuse rated for?
The fuse is rated at 250 V AC (IEC and UL) and 250 V DC (UL).
What does the aR classification mean?
An aR fuse provides ultra-fast short-circuit protection for semiconductor devices and is normally used alongside suitable overload protection.
Does this fuse include a striker indicator?
No. The BS17US25V75 is supplied without an integrated striker indicator.
Which equipment commonly uses this fuse?
It is commonly installed in industrial drives, power converters, rectifiers, UPS systems and other semiconductor-based power control equipment.
Trusted Semiconductor Protection from Mersen
Mersen Protistor® semiconductor fuses are trusted worldwide by OEMs, panel builders and maintenance engineers to deliver reliable protection for valuable semiconductor equipment operating in demanding industrial environments.
