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MERSEN FUSE A 130 URD 71 LLI 0280 A130URD71LLI0280
High-speed fuse with aR characteristic for semiconductor protection, rated 280A at 1250VAC IEC and 1300VAC UL, featuring striker indication and slotted blade terminals.
£92.08
Why Choose the Mersen R300717 High-Speed Semiconductor Fuse?
The Mersen R300717, catalogue reference A130UD71LLI280, is a Protistor® Size 71 high-speed semiconductor fuse developed to provide exceptional short-circuit protection for modern power conversion equipment. It is rated at 280A and is suitable for systems operating up to 1250VAC (IEC) and 1300VAC (UL).
Its ultra-fast aR operating characteristic is specifically engineered to protect sensitive semiconductor devices including diodes, thyristors and IGBT modules. Precision fuse elements embedded in solidified silica sand help minimise let-through energy (I²t) while delivering a high interrupting capacity during severe fault conditions.
The fuse features long slotted blade terminals, silver-plated contact surfaces, a robust square ceramic body and an integrated striker indicator capable of operating an optional microswitch for remote status indication, making it ideal for demanding industrial power electronic installations.
Key Advantages
- Ultra-fast aR semiconductor protection.
- 280A rated current for demanding industrial applications.
- Rated up to 1250VAC IEC and 1300VAC UL.
- Integrated striker for mechanical fuse indication.
- Long slotted blade terminals for secure bolted installation.
- Low I²t performance reduces semiconductor damage.
- Silver-plated contacts ensure excellent conductivity.
- Robust ceramic body for reliable industrial performance.
Key Features
- Mersen Protistor® Size 71 fuse-link.
- Manufacturer part number: R300717.
- Catalogue number: A130UD71LLI280.
- Square-body high-speed semiconductor fuse.
- aR ultra-fast operating characteristic.
- 280A rated current.
- 1250VAC IEC rated voltage.
- 1300VAC UL rated voltage.
- AC operation.
- Integrated striker indicator.
- Long slotted blade terminals.
- Silver-plated contact surfaces.
- Non-magnetic mounting hardware.
- Designed for semiconductor protection.
Designed for Critical Power Electronics
Protistor® semiconductor fuses are engineered to provide maximum protection for expensive semiconductor devices by rapidly interrupting fault currents before excessive thermal energy can damage power electronic components. Their advanced construction provides low arc energy and excellent current-limiting performance.
The Mersen R300717 is ideal for protecting variable speed drives, inverters, rectifiers, UPS systems, renewable energy converters and other industrial power conversion equipment where dependable semiconductor protection is essential.
Typical Applications
- Variable speed drives.
- Industrial power converters.
- Rectifiers.
- Inverters.
- UPS systems.
- Renewable energy systems.
- Battery energy storage converters.
- Industrial welding equipment.
- IGBT protection.
- Thyristor and diode protection.
Technical Specifications
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| Fuse Indication | Striker | |
|---|---|---|
| Fuse Type | Semiconductor | |
| Fuse Class | aR | |
| Voltage | 1250 V | |
| Item number | R300717 | |
| Catalogue No | A130UD71LLI280 | |
| Description | Square Body High-Speed Fuse Protistor® Size 71 aR 1250VAC IEC 1300VAC UL 280A With Striker Slotted Blades long | |
| EAN/UPC Code | 3605340332599 | |
| 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 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 | 70 W | |
| HS Code | 85351000 |
Frequently Asked Questions
What is the Mersen R300717?
The Mersen R300717 is a Protistor® Size 71 high-speed semiconductor fuse with catalogue number A130UD71LLI280, rated at 280A for semiconductor protection.
What voltage is the R300717 designed for?
The fuse is rated for operation up to 1250VAC under IEC standards and 1300VAC under UL standards.
What does an aR fuse do?
An aR fuse provides ultra-fast short-circuit protection for semiconductor devices including IGBTs, thyristors and diodes. Separate overload protection should be provided where required.
Does the R300717 include a striker indicator?
Yes. The fuse incorporates an integrated striker that can provide mechanical indication or operate a compatible microswitch for remote signalling.
Where is the R300717 typically used?
Typical applications include industrial drives, power converters, renewable energy equipment, UPS systems and other power electronic installations requiring high-speed semiconductor protection.
Trusted Protistor® Protection
Mersen Protistor® semiconductor fuses are trusted worldwide to deliver rapid fault interruption and dependable protection for high-value power electronic equipment.
