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MERSEN FUSE 12,5 URD 71 TT F 0280 12,5URD71TTF0280
High-speed aR characteristic fuse for semiconductor protection rated at 280A, 1250VAC IEC and 1300VAC UL with striker indication and flush ends with metric threads.
£82.70
Why Choose the Mersen P300715 Protistor® High-Speed Fuse?
The Mersen P300715 is a premium Protistor® Size 71 high-speed semiconductor fuse engineered to provide ultra-fast protection for modern power electronic equipment. Designed for demanding industrial applications, it protects diodes, thyristors and IGBT devices against damaging short-circuit and overcurrent conditions while helping maximise equipment reliability and minimise downtime.
As part of the Mersen Protistor® Size 71 series, the P300715 features a square ceramic body with flush ends and metric threaded terminals together with an integrated striker indicator. Die-cut silver fuse elements embedded in solidified sand provide exceptionally low let-through energy and high interrupting performance for critical semiconductor protection applications.
Rated at 280 A with a 1250 V AC (IEC) / 1300 V AC (UL) voltage rating, the P300715 is ideally suited to industrial drives, UPS systems, renewable energy equipment, power converters and other high-performance electrical installations requiring dependable semiconductor protection.
Key Advantages
- Ultra-fast aR semiconductor protection fuse.
- 280 A current rating for demanding industrial applications.
- 1250 V AC IEC / 1300 V AC UL voltage rating.
- Protects diodes, thyristors and IGBT devices.
- 126 kA AC breaking capacity.
- Integrated striker indicator for simplified maintenance.
Key Features
- Mersen Protistor® Size 71 series.
- Catalogue number: PC71UD13C280TF.
- 280 A rated current.
- 1250 V AC IEC / 1300 V AC UL operating voltage.
- aR ultra-fast semiconductor protection characteristic.
- Flush ends with metric threaded terminals.
- Integrated striker indicator.
- Silver-plated contacts with square ceramic body construction.
Reliable Protection for Power Electronics
The Mersen P300715 has been developed for demanding power conversion equipment where semiconductor devices require rapid fault clearance. Its low I²t performance helps minimise thermal stress during fault conditions, reducing the risk of costly equipment damage while extending the service life of protected components.
Suitable for OEM installations and maintenance replacements, the P300715 provides dependable protection in industrial environments where high-speed semiconductor protection is essential for safe and reliable operation.
Typical Applications
- Variable speed drives (VSDs).
- Industrial power converters.
- Renewable energy inverter systems.
- Uninterruptible power supplies (UPS).
- Motor drives and soft starters.
- Industrial automation and power distribution equipment.
Technical Specifications
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| Fuse Indication | Striker | |
|---|---|---|
| Fuse Type | Semiconductor | |
| Fuse Class | aR | |
| Voltage | 1250 V | |
| Item number | P300715 | |
| Catalogue No | PC71UD13C280TF | |
| Description | Square Body High-Speed Fuse Protistor® Size 71 aR 1250VAC IEC 1300VAC UL 280A With Striker Flush ends metric threads | |
| EAN/UPC Code | 3605340332575 | |
| Rated voltage AC UL | 1300 V | |
| Rated voltage AC IEC | 1250 V | |
| Ampere Rating | 280 A | |
| AC or DC | AC | |
| Speed/Characteristic | aR | |
| Fuse Size | 71 | |
| Mounting | Bolted | |
| Clearing I2t At Rated Voltage | 96 kA²s | |
| Melting I2t | 12 kA²s | |
| AC Max I.R./Breaking Capacity | I1: 126 kA | |
| Indication System | Yes | |
| Indication System Type | Striker | |
| Connection/Terminal Material | Silver-Plated Brass | |
| Connection/Terminal Type | Flush ends | |
| Product Width | 51 mm | |
| Product Length | 74 mm | |
| Product Height | 56.5 mm | |
| Sell Pack Quantity | 3 EA | |
| Sell Pack Weight | 1.545 kg | |
| Sell Pack Width | 90 mm | |
| Sell Pack Length | 170 mm | |
| Sell Pack Height | 70 mm | |
| Product group | Semiconductor Protection Fuses | |
| Body/Insulating Material | Ceramic | |
| Product Weight | 0.515 kg | |
| Power Dissipation at Rated Current Value | 68 W | |
| HS Code | 85351000 |
Frequently Asked Questions
What is the Mersen P300715 used for?
The P300715 is an ultra-fast semiconductor fuse designed to protect diodes, thyristors and IGBT devices against short-circuit and overcurrent faults.
What is the current rating of the P300715?
The Mersen P300715 has a continuous current rating of 280 A.
What voltage is the P300715 rated for?
The fuse is rated at 1250 V AC (IEC) and 1300 V AC (UL).
Does the P300715 include a striker indicator?
Yes. It incorporates an integrated striker indicator that can be used with a compatible microswitch for remote indication and maintenance monitoring.
Which applications commonly use this fuse?
The P300715 is commonly installed in industrial drives, power converters, UPS systems, renewable energy equipment and other semiconductor-based power conversion systems.
Trusted by Power Electronics Professionals Worldwide
Mersen Protistor® semiconductor fuses are trusted by OEMs, electrical engineers and industrial maintenance teams worldwide for reliable protection of high-value power electronic equipment.
