Why Choose the Mersen X097264 BS36UL69V250T Semiconductor Fuse?
The Mersen X097264, catalogue number BS36UL69V250T (designation 6.9 URGL 36T250), is a Protistor® BS88-4 high-speed semiconductor fuse-link designed to provide reliable protection for sensitive power semiconductor devices. It features an ultra-fast aR operating characteristic, making it ideal for protecting IGBTs, thyristors, diodes and other power electronic components against damaging short-circuit faults.
Rated at 250 A with a 690 V AC IEC voltage rating, the BS36UL69V250T is intended for demanding industrial applications including variable speed drives, UPS systems, power converters, rectifiers and renewable energy equipment. The fuse incorporates an integrated striker indicator for convenient local indication or remote signalling when used with a compatible microswitch.
Manufactured using Mersen's proven Protistor® technology, the fuse provides exceptional current limitation, low let-through energy and a high breaking capacity, helping minimise damage to expensive semiconductor devices while improving equipment reliability and reducing downtime.
Key Advantages
- Ultra-fast aR semiconductor protection.
- 250 A current rating.
- 690 V AC IEC rated operation.
- Integrated striker indicator for fuse status monitoring.
- Excellent current-limiting characteristics.
- Low I²t reduces stress on semiconductor devices.
- High breaking capacity for demanding industrial applications.
- BS88-4 compliant 36 × 55 mm square body construction.
Key Features
- Manufacturer: Mersen
- Series: Protistor® BS88-4
- Manufacturer SKU: X097264
- Catalogue number: BS36UL69V250T
- Designation: 6.9 URGL 36T250
- Fuse class: aR
- Square body 36 × 55 mm construction.
- Integrated striker indicator.
- Bolted blade terminals.
- Designed specifically for semiconductor protection.
Engineered for High-Power Semiconductor Protection
The Mersen X097264 is specifically designed to interrupt high prospective fault currents before damage can occur to costly semiconductor devices. Its ultra-fast aR characteristic limits fault energy, helping maximise equipment reliability while reducing maintenance costs in demanding industrial installations.
As an aR semiconductor fuse, the BS36UL69V250T is intended primarily for short-circuit protection. Suitable overload protection should be provided separately where required by the equipment manufacturer and applicable electrical standards.
Typical Applications
- Variable frequency drives (VFDs).
- Industrial motor drives.
- Power converters.
- Rectifiers.
- UPS systems.
- Renewable energy inverters.
- Industrial automation equipment.
- Semiconductor power protection circuits.
