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MERSEN FUSE A 130 URD 71 TTI 0315 A130URD71TTI0315
High-speed fuse designed for semiconductor protection with aR characteristic, rated at 315A, 1250VAC IEC, 1300VAC UL, featuring integrated striker and flush ends with UNC threads.
£86.24
Why Choose the Mersen F301029 Protistor® High-Speed Fuse?
The Mersen F301029 (catalogue number A130UD71TTI315) is a premium Protistor® square body high-speed semiconductor protection fuse engineered to provide outstanding protection for modern power electronic equipment. Specifically designed to safeguard IGBTs, thyristors, diodes and semiconductor modules, it delivers ultra-fast fault interruption to minimise damage during high fault current conditions.
As part of the proven Mersen Protistor® Size 71 aR series, this fuse features die-cut fuse elements embedded in solidified sand for excellent arc control, low let-through energy (I²t), silver-plated contact surfaces and a robust ceramic square body. The integrated striker indicator can operate an optional microswitch, simplifying maintenance and remote monitoring.
Rated at 315 A with operating voltages of 1250 V AC (IEC) and 1300 V AC (UL), the F301029 is ideally suited to industrial drives, power converters, UPS systems, renewable energy equipment and other demanding semiconductor protection applications.
Key Advantages
- Ultra-fast aR semiconductor protection fuse.
- 315 A current rating for demanding industrial applications.
- 1250 V AC IEC / 1300 V AC UL voltage rating.
- 126 kA breaking capacity for outstanding fault interruption.
- Integrated striker indicator for simplified maintenance.
- Silver-plated contacts provide excellent conductivity and long service life.
- Designed specifically to protect IGBTs, thyristors, diodes and semiconductor modules.
Key Features
- Mersen Protistor® Size 71 aR series.
- 315 A rated current.
- 1250 V AC (IEC) / 1300 V AC (UL).
- Ultra-fast acting aR characteristic.
- Square body ceramic fuse construction.
- Flush end UNC threaded terminals.
- Integrated striker indication.
- Low I²t performance for superior semiconductor protection.
Reliable Protection for High-Power Electronics
The Mersen F301029 is engineered to interrupt high fault currents before they can damage expensive semiconductor devices. Its ultra-fast operating characteristics and low energy let-through help maximise equipment reliability while reducing maintenance costs and unplanned downtime.
Protistor® semiconductor fuses are widely specified in industrial automation, renewable energy systems and power conversion equipment where dependable semiconductor protection is essential for safe and reliable operation.
Typical Applications
- Variable frequency drives (VFDs).
- Industrial motor control systems.
- Power converters and rectifiers.
- Renewable energy inverter systems.
- UPS systems.
- Industrial automation equipment.
- Protection of IGBTs, thyristors and diodes.
- High-power power conversion equipment.
Technical Specifications
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| Fuse Indication | Striker | |
|---|---|---|
| Fuse Type | Semiconductor | |
| Fuse Class | aR | |
| Voltage | 1250 V | |
| Item number | F301029 | |
| Catalogue No | A130UD71TTI315 | |
| Description | Square Body High-Speed Fuse Protistor® Size 71 aR 1250VAC IEC 1300VAC UL 315A With Striker Flush ends UNC threads | |
| EAN/UPC Code | 3605340335637 | |
| Rated voltage AC UL | 1300 V | |
| Rated voltage AC IEC | 1250 V | |
| Ampere Rating | 315 A | |
| AC or DC | AC | |
| Speed/Characteristic | aR | |
| Fuse Size | 71 | |
| Mounting | Bolted | |
| Clearing I2t At Rated Voltage | 129 kA²s | |
| Melting I2t | 16 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 | 1.5 kg | |
| Sell Pack Width | 85 mm | |
| Sell Pack Length | 170 mm | |
| Sell Pack Height | 70 mm | |
| Product group | Semiconductor Protection Fuses | |
| Body/Insulating Material | Ceramic | |
| Product Weight | 0.5 kg | |
| Power Dissipation at Rated Current Value | 73 W | |
| HS Code | 85351000 |
Frequently Asked Questions
What is the Mersen F301029 used for?
The F301029 is a high-speed semiconductor fuse designed to protect IGBTs, thyristors, diodes and other power electronic devices against damaging short-circuit currents.
What is the current rating of the F301029?
This fuse has a 315 A current rating.
What voltage is the fuse rated for?
The fuse is rated for 1250 V AC (IEC) and 1300 V AC (UL).
What does the aR fuse characteristic mean?
The aR characteristic identifies an ultra-fast semiconductor protection fuse specifically designed to protect power electronic devices from short-circuit faults.
Which equipment commonly uses this fuse?
The F301029 is commonly installed in industrial drives, power converters, UPS equipment, renewable energy systems and other high-power semiconductor applications.
Trusted Protection for Industrial Power Electronics
Mersen Protistor® semiconductor fuses are trusted worldwide by electrical engineers, OEMs and industrial manufacturers for protecting high-value semiconductor equipment in demanding industrial applications.
