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MERSEN FUSE A 130 URD 71 LLI 0315 A130URD71LLI0315
High-speed aR characteristic fuse with 315A rating and integrated striker indication system for semiconductor protection in industrial environments.
£93.75
Why Choose the Mersen H300663 Protistor® High-Speed Fuse?
The Mersen H300663 (Catalogue No. A130UD71LLI315) is a Protistor® Size 71 aR square body high-speed fuse engineered to provide exceptional protection for semiconductor devices and modern power electronic equipment. Rated at 315A, 1250VAC (IEC) and 1300VAC (UL), it delivers ultra-fast fault clearing for demanding industrial applications.
Designed specifically for protecting IGBTs, thyristors, diodes and other sensitive semiconductor devices, the H300663 combines a ceramic square body construction with silver-plated copper slotted blade terminals and an integrated striker indicator for dependable operation and simplified maintenance.
Its high interrupting capacity, low let-through energy (I²t) and robust construction make it an excellent choice for renewable energy systems, industrial drives, UPS equipment, battery storage and power conversion applications where rapid fault interruption is critical.
Key Advantages
- Genuine Mersen Protistor® semiconductor protection fuse.
- Ultra-fast aR characteristic for semiconductor protection.
- 315A current rating.
- 1250VAC IEC / 1300VAC UL voltage rating.
- Integrated striker indicator for remote fuse indication.
- Long slotted blade terminals for secure bolted installation.
- High breaking capacity for demanding industrial applications.
- Designed specifically for power electronics and converter protection.
Key Features
- Manufacturer: Mersen
- Series: Protistor® Size 71 aR
- Manufacturer Part Number: H300663
- Catalogue Number: A130UD71LLI315
- Square body high-speed semiconductor fuse.
- Silver-plated copper slotted blade terminals.
- Ceramic body with sand-filled arc-quenching construction.
- Integrated striker indication system.
- Suitable for worldwide industrial power conversion equipment.
Optimised Protection for Power Electronics
The Mersen H300663 has been engineered specifically to minimise fault energy reaching expensive semiconductor devices. Its ultra-fast aR operating characteristic provides rapid interruption of short-circuit currents while allowing semiconductor equipment to operate normally during transient conditions. This helps maximise equipment reliability while reducing downtime and replacement costs.
Typical Applications
- Variable speed drives.
- Industrial inverters.
- UPS systems.
- Battery energy storage systems.
- Solar and wind power converters.
- Semiconductor protection circuits.
- Industrial power conversion equipment.
- DC and AC converter systems.
Technical Specifications
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| Fuse Indication | Striker | |
|---|---|---|
| Fuse Type | Semiconductor | |
| Fuse Class | aR | |
| Voltage | 1250 V | |
| Item number | H300663 | |
| Catalogue No | A130UD71LLI315 | |
| Description | Square Body High-Speed Fuse Protistor® Size 71 aR 1250VAC IEC 1300VAC UL 315A With Striker Slotted Blades long | |
| EAN/UPC Code | 3605340331820 | |
| 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 Copper | |
| Connection/Terminal Type | Slotted Blades | |
| Product Width | 51 mm | |
| Product Length | 157.4 mm | |
| Product Height | 56.5 mm | |
| Sell Pack Quantity | 3 EA | |
| Sell Pack Weight | 1.62 kg | |
| Sell Pack Width | 155 mm | |
| Sell Pack Length | 165 mm | |
| Sell Pack Height | 60 mm | |
| Product group | Semiconductor Protection Fuses | |
| Body/Insulating Material | Ceramic | |
| Product Weight | 0.54 kg | |
| Power Dissipation at Rated Current Value | 76 W |
Frequently Asked Questions
What is the Mersen H300663 used for?
The H300663 is a Protistor® high-speed semiconductor fuse designed to protect IGBTs, thyristors, diodes and other sensitive power semiconductor devices in industrial power conversion equipment.
What are the voltage ratings?
The fuse is rated at 1250VAC according to IEC standards and 1300VAC according to UL standards.
What is the current rating?
The Mersen H300663 has a continuous current rating of 315A.
Does the fuse include an indicator?
Yes. The H300663 includes an integrated striker indication system for remote fuse operation signalling.
What type of terminals does it use?
This model features long slotted blade terminals with silver-plated copper contacts for bolted installation.
Trusted by Power Electronics Professionals
Mersen Protistor® semiconductor fuses are trusted worldwide by equipment manufacturers, electrical engineers and maintenance professionals for protecting high-value power electronic equipment in demanding industrial applications.
