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MERSEN FUSE A 065 URD 32 LI 1100 A065URD32LI1100
High-speed Protistor® fuse with striker indication, rated at 1100A, 600VAC IEC, 650VAC UL, designed for semiconductor protection and power electronics applications.
£158.15
Why Choose the Mersen B301071 High-Speed Semiconductor Fuse?
The Mersen B301071 is a premium Protistor® Size 32 square body high-speed semiconductor fuse engineered to provide exceptional protection for modern power conversion equipment. Designed specifically for semiconductor applications, it safeguards sensitive devices including IGBTs, thyristors, diodes and rectifiers against damaging short-circuit currents. The fuse features an ultra-fast aR operating characteristic, making it ideal for demanding industrial applications.
Manufactured using precision die-cut fuse elements embedded in solidified sand, the B301071 delivers low let-through energy (I²t) and a high interrupting capacity. Silver-plated contact surfaces and non-magnetic hardware provide excellent electrical performance and long-term reliability, while the integrated striker indicator enables remote fuse status indication when used with an appropriate microswitch.
Rated at 1100 A with a 600 V AC IEC / 650 V AC UL voltage rating, the Mersen B301071 is ideally suited for industrial motor drives, UPS systems, power converters, renewable energy installations and other high-power semiconductor applications.
Key Advantages
- Ultra-fast aR semiconductor protection fuse.
- 1100 A current rating for high-power industrial applications.
- 600 V AC IEC / 650 V AC UL voltage rating.
- Designed specifically for protecting IGBTs, thyristors and power semiconductors.
- Low I²t limits damaging fault energy.
- Silver-plated contacts provide excellent conductivity and corrosion resistance.
- Integrated striker indicator for remote fuse indication.
- Manufactured by Mersen, a global leader in electrical protection.
Key Features
- Mersen Protistor® Size 32 semiconductor fuse.
- Catalogue Number: A065UD32LI1100.
- Square body high-speed fuse construction.
- 1100 A rated current.
- 600 VAC IEC / 650 VAC UL rated voltage.
- aR ultra-fast operating characteristic.
- Long slotted blade terminals.
- Integrated striker indicator.
- Silver-plated contact surfaces.
- High interrupting capacity up to 200 kA.
Reliable Protection for Industrial Power Electronics
The Mersen B301071 has been engineered to minimise the damaging effects of short-circuit faults in semiconductor equipment. Its low-energy let-through characteristics help protect expensive power electronic components while reducing downtime and maintenance costs.
Protistor® semiconductor fuses are widely used by equipment manufacturers worldwide thanks to their high interrupting capacity, consistent performance and compliance with international standards for semiconductor protection.
Typical Applications
- Variable frequency drives (VFDs).
- Industrial motor drives.
- Power converters and rectifiers.
- Industrial inverters.
- UPS and backup power systems.
- Renewable energy installations.
- Battery energy storage systems.
- Industrial automation equipment.
Technical Specifications
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| Fuse Indication | Striker | |
|---|---|---|
| Fuse Type | Semiconductor | |
| Fuse Class | aR | |
| Voltage | 600 V | |
| Item number | B301071 | |
| Catalogue No | A065UD32LI1100 | |
| Description | Square Body High-Speed Fuse Protistor® Size 32 aR 600VAC IEC 650VAC UL 1100A With Striker Slotted Blades long | |
| EAN/UPC Code | 3605340336344 | |
| Rated voltage AC UL | 650 V | |
| Rated voltage AC IEC | 600 V | |
| Ampere Rating | 1100 A | |
| RoHS Compliant | Yes | |
| AC or DC | AC | |
| Speed/Characteristic | aR | |
| Fuse Size | 32 | |
| Mounting | Bolted | |
| Clearing I2t At Rated Voltage | 1450 kA²s | |
| Melting I2t | 270 kA²s | |
| AC Max I.R./Breaking Capacity | I1: 200 kA | |
| Indication System | Yes | |
| Indication System Type | Striker | |
| Connection/Terminal Material | Silver-Plated Copper | |
| Connection/Terminal Type | Slotted Blades | |
| Product Width | 59 mm | |
| Product Length | 153 mm | |
| Product Height | 65 mm | |
| Sell Pack Quantity | 3 EA | |
| Sell Pack Weight | 2.2299 kg | |
| Sell Pack Width | 160 mm | |
| Sell Pack Length | 195 mm | |
| Sell Pack Height | 72 mm | |
| Product group | Semiconductor Protection Fuses | |
| Body/Insulating Material | Ceramic | |
| Product Weight | 0.7433 kg | |
| Power Dissipation at Rated Current Value | 165 W | |
| HS Code | 85361090 | |
| Country of Manufacture | France |
Frequently Asked Questions
What is the Mersen B301071 used for?
The Mersen B301071 is designed to protect semiconductor devices such as IGBTs, thyristors, rectifiers and power diodes from damaging short-circuit currents.
What are the voltage ratings?
The fuse is rated at 600 V AC (IEC) and 650 V AC (UL).
What is the current rating?
The B301071 has a rated current of 1100 A.
Does this fuse include a striker indicator?
Yes. The fuse incorporates a striker indicator for optional remote indication using a compatible microswitch.
Where is the B301071 typically installed?
It is commonly installed in industrial drives, converters, UPS systems, renewable energy equipment and other high-power semiconductor applications.
Trusted by Industrial Power Electronics Professionals
Mersen Protistor® semiconductor fuses are trusted worldwide by machine builders, electrical engineers and maintenance professionals for reliable protection of high-value power electronic equipment.
