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MERSEN FUSE A 060 URD 33 LI 2000 A060URD33LI2000
High-performance Protistor® fuse offering rapid fault interruption to protect sensitive power electronics and semiconductor devices, rated at 2000A for IEC 550VAC and UL 600VAC applications with integrated striker and slotted blades.
£257.29
Why Choose the Mersen J301078 Protistor® High-Speed Semiconductor Fuse?
The Mersen J301078 is a premium Protistor® Size 33 aR square body high-speed semiconductor fuse designed to provide exceptional protection for modern power conversion equipment. Specifically engineered for safeguarding sensitive semiconductor devices, it delivers ultra-fast fault interruption and outstanding current limiting to protect IGBTs, thyristors, rectifiers and power diodes against damaging short-circuit currents.
Manufactured as part of Mersen's globally recognised Protistor® semiconductor fuse range, the J301078 features die-cut silver fuse elements embedded in solidified sand, silver-plated contact surfaces, long slotted blade terminals and an integrated striker for remote indication. This robust construction provides excellent cycling capability, low let-through energy and dependable protection in demanding industrial environments.
With a 2000 A rated current, 550 V AC IEC and 600 V AC UL voltage ratings, the J301078 is ideally suited to industrial drives, converters, rectifiers, UPS systems, renewable energy equipment and other high-power semiconductor applications requiring reliable circuit protection.
Key Advantages
- Ultra-fast aR semiconductor protection fuse.
- 2000 A current rating for high-power industrial applications.
- 550 V AC IEC / 600 V AC UL voltage rating.
- Excellent current-limiting performance reduces fault energy.
- Integrated striker for remote indication and monitoring.
- Designed to maximise semiconductor reliability and minimise downtime.
Key Features
- Mersen Protistor® Size 33 aR series.
- 2000 A rated current.
- 550 V AC (IEC) / 600 V AC (UL) rated voltage.
- Square body fuse with long slotted blade terminals.
- Integrated striker indicator.
- Silver-plated contact surfaces.
- Solidified sand construction for controlled arc performance.
- Designed for protection of IGBTs, SCRs, rectifiers and power diodes.
Reliable Protection for Industrial Power Electronics
High-speed semiconductor fuses are engineered to interrupt fault currents before excessive thermal or electrical energy reaches sensitive semiconductor devices. Their low let-through energy helps improve equipment reliability while reducing maintenance costs and unplanned downtime.
The Mersen Protistor® Size 33 range is trusted worldwide by OEMs, panel builders and industrial engineers for demanding power conversion applications where dependable semiconductor protection is essential.
Typical Applications
- Variable frequency drives.
- Industrial motor control systems.
- Power converters and rectifiers.
- Industrial inverter systems.
- UPS systems.
- Renewable energy installations.
- Battery energy storage systems.
- Industrial power supplies.
Technical Specifications
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| Fuse Indication | Striker | |
|---|---|---|
| Fuse Type | Semiconductor | |
| Fuse Class | aR | |
| Voltage | 550 V | |
| Item number | J301078 | |
| Catalogue No | A060UD33LI2000 | |
| Description | Square Body High-Speed Fuse Protistor® Size 33 aR 550VAC IEC 600VAC UL 2000A With Striker Slotted Blades long | |
| EAN/UPC Code | 3605340336481 | |
| Rated voltage AC UL | 600 V | |
| Rated voltage AC IEC | 550 V | |
| Ampere Rating | 2000 A | |
| RoHS Compliant | Yes | |
| AC or DC | AC | |
| Speed/Characteristic | aR | |
| Fuse Size | 33 | |
| Mounting | Bolted | |
| Clearing I2t At Rated Voltage | 4500 kA²s | |
| Melting I2t | 950 kA²s | |
| AC Max I.R./Breaking Capacity | I1: 200 kA | |
| Design Details | Reinforced Terminal | |
| Indication System | Yes | |
| Indication System Type | Striker | |
| Connection/Terminal Material | Silver-Plated Copper | |
| Connection/Terminal Type | Slotted Blades | |
| Product Width | 73 mm | |
| Product Length | 153 mm | |
| Product Height | 78.5 mm | |
| Sell Pack Quantity | 3 EA | |
| Sell Pack Weight | 2.6298 kg | |
| Sell Pack Width | 160 mm | |
| Sell Pack Length | 250 mm | |
| Sell Pack Height | 90 mm | |
| Product group | Semiconductor Protection Fuses | |
| Body/Insulating Material | Ceramic | |
| Product Weight | 0.8766 kg | |
| Power Dissipation at Rated Current Value | 290 W | |
| HS Code | 85361090 |
Frequently Asked Questions
What is the Mersen J301078 used for?
The J301078 is designed to provide ultra-fast short-circuit protection for power semiconductor devices including IGBTs, thyristors, rectifiers and power diodes.
What is the current rating of this fuse?
The fuse has a rated current of 2000 A for demanding industrial semiconductor protection applications.
What voltage is the J301078 designed for?
It is rated for 550 V AC (IEC) and 600 V AC (UL) systems.
What does the aR fuse characteristic mean?
The aR operating characteristic provides ultra-fast short-circuit protection specifically for semiconductor devices and is intended for semiconductor protection rather than overload protection.
Where is this fuse commonly installed?
It is commonly installed in industrial drives, converters, rectifiers, UPS systems, renewable energy equipment and other high-power power conversion applications.
Trusted by Industrial Engineers Worldwide
Mersen Protistor® semiconductor fuses are trusted worldwide for delivering dependable, ultra-fast protection for industrial power electronics, helping maximise equipment availability while protecting valuable semiconductor devices.
