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MERSEN FUSE 11 URD 71 EF 0500 11URD71EF0500
High-speed aR fuse designed for semiconductor protection with 500A rating, 1100VAC IEC and 1200VAC UL voltage ratings, featuring a ceramic body and integrated striker indication system.
£117.24
Why Choose the Mersen F300615 Protistor® High-Speed Fuse?
The Mersen F300615 (catalogue number PC71UD11C500EF) is a premium Protistor® square body high-speed semiconductor protection fuse engineered to provide exceptional protection for modern power electronic equipment. Designed specifically to safeguard IGBTs, thyristors, diodes and semiconductor modules, it delivers ultra-fast fault interruption to minimise damage during short-circuit conditions.
Part of the trusted Mersen Protistor® Size 71 aR series, this fuse features low let-through energy (I²t), silver-plated contact surfaces and a robust square body construction filled with solidified sand to optimise arc control. The integrated striker indicator allows remote indication or operation of an optional microswitch, simplifying maintenance and system monitoring.
Rated at 500 A with operating voltages of 1100 V AC (IEC) and 1200 V AC (UL), the F300615 is ideally suited for protecting industrial drives, power converters, UPS systems, renewable energy equipment and other demanding semiconductor applications.
Key Advantages
- Ultra-fast aR semiconductor protection fuse for sensitive power electronics.
- 500 A current rating for demanding industrial applications.
- 1100 V AC IEC / 1200 V AC UL voltage rating.
- 150 kA breaking capacity for excellent fault interruption.
- Integrated striker indicator for simplified maintenance.
- Silver-plated contacts provide excellent conductivity and long service life.
- Designed to protect IGBTs, thyristors, diodes and semiconductor modules.
Key Features
- Mersen Protistor® Size 71 aR series.
- 500 A rated current.
- 1100 V AC (IEC) / 1200 V AC (UL).
- Ultra-fast acting aR characteristic.
- Square body ceramic fuse construction.
- Open slot blade terminals.
- Integrated striker indication.
- Low I²t performance for superior semiconductor protection.
Reliable Protection for High-Power Electronics
The Mersen F300615 is designed 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.
This Protistor® fuse is widely used in industrial automation, renewable energy systems and power conversion equipment where dependable protection of semiconductor devices 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
Tick the specs you need, then view products that match.
| Fuse Indication | Striker | |
|---|---|---|
| Fuse Type | Semiconductor | |
| Fuse Class | aR | |
| Voltage | 1100 V | |
| Item number | F300615 | |
| Catalogue No | PC71UD11C500EF | |
| Description | Square Body High-Speed Fuse Protistor® Size 71 aR 1100VAC IEC 1200VAC UL 500A With Striker Open Slot Blades | |
| EAN/UPC Code | 3605340331004 | |
| Rated voltage AC UL | 1200 V | |
| Rated voltage AC IEC | 1100 V | |
| Ampere Rating | 500 A | |
| AC or DC | AC | |
| Speed/Characteristic | aR | |
| Fuse Size | 71 | |
| Mounting | Bolted | |
| Clearing I2t At Rated Voltage | 441 kA²s | |
| Melting I2t | 68 kA²s | |
| AC Max I.R./Breaking Capacity | I1: 150 kA | |
| Indication System | Yes | |
| Indication System Type | Striker | |
| Connection/Terminal Material | Silver-Plated Copper | |
| Connection/Terminal Type | Open Slot Blades | |
| Product Width | 51 mm | |
| Product Length | 149.4 mm | |
| Product Height | 56.5 mm | |
| Sell Pack Quantity | 3 EA | |
| Sell Pack Weight | 1.62 kg | |
| Sell Pack Width | 140 mm | |
| Sell Pack Length | 174 mm | |
| Sell Pack Height | 71 mm | |
| Product group | Semiconductor Protection Fuses | |
| Body/Insulating Material | Ceramic | |
| Product Weight | 0.54 kg | |
| Power Dissipation at Rated Current Value | 100 W | |
| HS Code | 85351000 |
Frequently Asked Questions
What is the Mersen F300615 used for?
The F300615 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 F300615?
This fuse has a 500 A current rating.
What voltage is the fuse rated for?
The fuse is rated for 1100 V AC (IEC) and 1200 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 F300615 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.
