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MERSEN FUSE A 120 URD 71 LLI 0500 A120URD71LLI0500
MPN: M300667
Alt. SKU: A120URD71LLI0500
Special Price
£103.88
£86.57
Regular Price
£188.88
MERSEN FUSE A 120 URD 71 LLI 0500 A120URD71LLI0500 is available to buy in increments of 3
Why Choose the Square Body High-Speed Fuse Protistor® Size 71 aR 1100VAC IEC 1200VAC UL 500A With Striker Slotted Blades long A120UD71LLI500?
Engineered for demanding protection in industrial power conversion and semiconductor applications, this fuse delivers rapid response to overcurrent events up to 1100VAC IEC and 1200VAC UL, ensuring reliable safeguarding of sensitive equipment.
Featuring a robust 500A rating and integrated striker with slotted blade terminals for secure, efficient installation, the A120UD71LLI500 combines proven arc-interruption performance and compliance with global standards to maximise uptime and operational safety.
Product Code: M300667
Key Benefits
- High-speed aR characteristic ensures rapid fault clearing to protect sensitive semiconductor devices.
- Rated for 1100VAC IEC and 1200VAC UL, suitable for various international standards.
- Robust ceramic body for excellent insulation and durability under harsh conditions.
- Integrated striker indication system provides clear visual fault indication for quick maintenance.
- Silver-plated copper slotted blade terminals ensure reliable electrical connection and ease of installation.
- High breaking capacity of 150 kA for superior fault current interruption.
Compatibility
This fuse is compatible with industrial power conversion equipment, semiconductor protection panels, and systems requiring bolted mounting of size 71 fuses with striker indication. It fits fuse holders designed for high-speed aR fuses with slotted blade terminals.
Applications
- Industrial power conversion systems
- Semiconductor device protection
- Inverter and converter circuits
- Motor drive protection
- Renewable energy equipment
- High-current AC electrical installations
Technical Specifications
- Item number: M300667
- Catalogue No: A120UD71LLI500
- Description: Square Body High-Speed Fuse Protistor® Size 71 aR 1100VAC IEC 1200VAC UL 500A With Striker Slotted Blades long
- EAN/UPC Code: 3605340331868
- 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: 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: 100 W
Frequently Asked Questions
What does the aR characteristic mean for this fuse?
The aR characteristic indicates a high-speed fuse designed to protect semiconductor devices by quickly clearing faults while allowing certain overloads to pass without blowing.
Is this fuse suitable for DC applications?
No, this fuse is rated for AC applications only, as specified in the technical specifications.
What is the purpose of the striker indication system?
The striker provides a visual indication when the fuse has operated (blown), allowing for quick identification and replacement.
Can this fuse be mounted in any fuse holder?
This fuse requires a bolted mounting and is compatible with fuse holders designed for size 71 fuses with slotted blade terminals and striker indication.
Common Search Terms
Square Body Fuse, High-Speed Fuse, Protistor Fuse, Size 71 Fuse, 500A Fuse, 1100VAC Fuse, 1200VAC Fuse, Semiconductor Protection Fuse, Striker Indication Fuse, Slotted Blade Terminals Fuse
| Manufacturer Part Number | M300667 |
|---|---|
| Packed Quantity | 3 |
| Barcode | 3605340331868 |
| Manufacturer | Mersen |
| Alternative Product SKU | A120URD71LLI0500 |
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