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MERSEN FUSE A 070 URD 30 TTI 0050 A070UD30TTI50
High-speed Protistor® fuse for semiconductor protection rated at 50A, 690VAC IEC and 700VAC UL with integrated striker indication and flush end terminals.
£44.31
Why Choose the Mersen V302744 High-Speed Semiconductor Fuse?
The Mersen V302744 is an industrial high-speed semiconductor fuse intended to protect sensitive power electronic components against damaging short-circuit currents. Its rapid fault-clearing performance helps limit the thermal and electrical energy transferred to valuable semiconductor devices, supporting reliable operation in demanding power conversion and motor-control equipment.
High-speed semiconductor fuses are engineered to operate considerably faster than conventional general-purpose fuses. This makes the V302744 suitable for appropriately coordinated systems containing components such as IGBTs, thyristors, power diodes and rectifier assemblies, where excessive fault energy could otherwise cause permanent damage and prolonged equipment downtime.
A definitive public product record for the Mersen V302744 could not be verified. Its precise current rating, voltage rating, utilisation category, breaking capacity, terminal arrangement and physical dimensions must therefore be confirmed from the product label, original equipment documentation or an official Mersen datasheet before ordering or installation.
Key Advantages
- High-speed fuse intended for semiconductor protection.
- Rapid short-circuit interruption helps protect sensitive power components.
- Low let-through energy can reduce thermal and electrical fault stress.
- Suitable for demanding industrial power electronic applications.
- Supports maintenance, replacement and OEM equipment requirements.
- Manufactured by Mersen, a specialist in industrial electrical protection.
Key Features
- Mersen manufacturer reference V302744.
- High-speed fault-clearing performance.
- Designed for semiconductor-based electrical equipment.
- Helps limit damaging energy reaching protected components.
- Industrial-grade fuse construction.
- Suitable for an appropriately rated fuse mounting system.
- Applicable to maintenance and original equipment installations.
- Electrical and mechanical specifications require verification.
Reliable Protection for Power Electronic Equipment
Power semiconductor components may be permanently damaged within milliseconds when exposed to excessive fault current. A correctly selected high-speed fuse interrupts the fault rapidly and restricts the amount of destructive energy reaching the protected component.
Correct fuse coordination is essential for dependable protection. The verified characteristics of the Mersen V302744 must be matched to the system voltage, continuous operating current, prospective short-circuit current, cooling conditions and energy-withstand limits of the semiconductor devices being protected.
Typical Applications
- Variable frequency drives and industrial motor controls.
- Power converters and rectifier systems.
- Industrial inverters.
- Uninterruptible power supply equipment.
- Renewable energy conversion systems.
- Automation and production machinery.
- OEM semiconductor-based power assemblies.
Technical Specifications
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| Fuse Indication | Striker | |
|---|---|---|
| Fuse Type | Semiconductor | |
| Fuse Class | aR | |
| Voltage | 690 V | |
| Item number | V302744 | |
| Catalogue No | A070UD30TTI50 | |
| Description | Square Body High-Speed Fuse Protistor® Size 30 aR 690VAC IEC 700VAC UL 50A With Striker Flush ends UNC threads | |
| EAN/UPC Code | 3605340355840 | |
| Rated voltage AC UL | 700 V | |
| Rated voltage AC IEC | 690 V | |
| Ampere Rating | 50 A | |
| RoHS Compliant | Yes | |
| AC or DC | AC | |
| Speed/Characteristic | aR | |
| Fuse Size | 30 | |
| Mounting | Bolted | |
| Clearing I2t At Rated Voltage | 0.68 kA²s | |
| Melting I2t | 0.116 kA²s | |
| AC Max I.R./Breaking Capacity | I1: 200 kA | |
| Indication System | Yes | |
| Indication System Type | Striker | |
| Connection/Terminal Material | Silver-Plated Brass | |
| Connection/Terminal Type | Flush ends | |
| Product Width | 40 mm | |
| Product Length | 50.6 mm | |
| Product Height | 48 mm | |
| Sell Pack Quantity | 3 EA | |
| Sell Pack Weight | 0.765 kg | |
| Sell Pack Width | 80 mm | |
| Sell Pack Length | 135 mm | |
| Sell Pack Height | 55 mm | |
| Product group | Semiconductor Protection Fuses | |
| Body/Insulating Material | Ceramic | |
| Product Weight | 0.255 kg | |
| Power Dissipation at Rated Current Value | 9 W | |
| HS Code | 85361050 | |
| Country of Manufacture | France |
Frequently Asked Questions
What is the Mersen V302744 used for?
The Mersen V302744 is intended to provide rapid short-circuit protection for sensitive semiconductor components installed in industrial power electronic equipment.
Which components can the V302744 help protect?
Subject to correct electrical coordination, it may be used in systems containing IGBTs, thyristors, power diodes and rectifier assemblies.
What are the current and voltage ratings of the V302744?
The exact electrical ratings could not be verified from a definitive public product record. Confirm them from the official Mersen datasheet, the fuse label or the original equipment documentation.
Can the V302744 be replaced with a fuse that has a similar appearance?
No. A replacement must match the required current rating, voltage rating, utilisation category, breaking capacity, I²t performance, dimensions and terminal arrangement. Physical similarity alone does not confirm compatibility.
Where might the Mersen V302744 be installed?
Depending on its verified ratings, it may be installed in compatible industrial drives, converters, inverters, UPS equipment and other semiconductor-based power systems.
Trusted Industrial Circuit Protection
Mersen high-speed fuses are used in industrial power electronic systems where rapid fault interruption, low let-through energy and dependable semiconductor protection are essential.
