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MERSEN FUSE 12,5 URD 72 TTF 0630 12,5URD72TTF0630
High-speed fuse designed for semiconductor protection with 630A rating, 1250VAC IEC and 1300VAC UL ratings, featuring a striker indication system and flush ends with metric threads.
£123.71
Why Choose the Mersen F300500 Protistor® High-Speed Fuse?
The Mersen F300500 (catalogue number PC72UD13C630TF) is a premium Protistor® square body high-speed semiconductor protection fuse engineered to provide rapid fault protection for modern power electronic equipment. Designed specifically for protecting IGBTs, thyristors, diodes and semiconductor modules, it delivers outstanding short-circuit performance while minimising damage to valuable electronic components.
As part of the trusted Mersen Protistor® Size 72 aR series, this ultra-fast acting fuse features low let-through energy (I²t), silver-plated contacts and a robust ceramic square body construction. The integrated striker indicator simplifies maintenance by allowing remote indication or operation of a field-mounted microswitch.
With a 630 A current rating and operating voltages of 1250 V AC (IEC) and 1300 V AC (UL), the F300500 is ideal for protecting high-power drives, converters, renewable energy systems, UPS installations and industrial automation equipment requiring dependable semiconductor protection.
Key Advantages
- Ultra-fast aR semiconductor protection fuse for power electronics.
- 630 A current rating for demanding industrial applications.
- 1250 V AC IEC / 1300 V AC UL voltage rating.
- High interrupting capacity for enhanced equipment protection.
- Integrated striker indicator for simplified monitoring.
- Silver-plated terminals provide excellent conductivity.
- Designed to protect IGBTs, thyristors, diodes and semiconductor modules.
Key Features
- Mersen Protistor® Size 72 aR series.
- 630 A rated current.
- 1250 V AC IEC / 1300 V AC UL.
- Ultra-fast acting aR characteristic.
- Square body ceramic fuse construction.
- Flush ends with metric threaded terminals.
- Integrated striker indication system.
- Low I²t performance for semiconductor protection.
Reliable Protection for High-Power Electronics
The Mersen F300500 is designed to interrupt high fault currents before they can damage expensive semiconductor devices. Its extremely fast operating characteristics and low energy let-through help maximise equipment reliability while reducing maintenance costs and downtime.
This Protistor® fuse is widely used throughout industrial automation, renewable energy installations and power conversion systems where dependable protection of semiconductor devices is essential for continuous 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
Tick the specs you need, then view products that match.
| Fuse Indication | Striker | |
|---|---|---|
| Fuse Type | Semiconductor | |
| Fuse Class | aR | |
| Voltage | 1250 V | |
| Item number | F300500 | |
| Catalogue No | PC72UD13C630TF | |
| Description | Square Body High-Speed Fuse Protistor® Size 72 aR 1250VAC IEC 1300VAC UL 630A With Striker Flush ends metric threads | |
| EAN/UPC Code | 3605340329377 | |
| Rated voltage AC UL | 1300 V | |
| Rated voltage AC IEC | 1250 V | |
| Ampere Rating | 630 A | |
| AC or DC | AC | |
| Speed/Characteristic | aR | |
| Fuse Size | 72 | |
| Mounting | Bolted | |
| Clearing I2t At Rated Voltage | 860 kA²s | |
| Melting I2t | 106.3 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 | 59 mm | |
| Product Length | 74 mm | |
| Product Height | 63 mm | |
| Sell Pack Quantity | 1 EA | |
| Sell Pack Weight | 0.8 kg | |
| Sell Pack Width | 110 mm | |
| Sell Pack Length | 130 mm | |
| Sell Pack Height | 80 mm | |
| Product group | Semiconductor Protection Fuses | |
| Body/Insulating Material | Ceramic | |
| Product Weight | 0.8 kg | |
| Power Dissipation at Rated Current Value | 113 W | |
| HS Code | 85351000 |
Frequently Asked Questions
What is the Mersen F300500 used for?
The F300500 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 F300500?
This fuse has a 630 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 designed specifically to protect power electronic devices from short-circuit faults.
Which equipment commonly uses this fuse?
The F300500 is commonly installed in industrial drives, power converters, renewable energy systems, UPS equipment 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.
