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MERSEN FUSE A 130 URD 70 LI 0160 A130URD70LI0160
Optimised for demanding industrial and power electronics applications, this Protistor® high-speed fuse offers exceptional current limiting and rapid fault interruption at ratings up to 1250VAC (IEC) and 1300VAC (UL), supporting enhanced safety and system protection for sensitive semiconductor devices.
£72.84
Why Choose the Mersen A300656 High-Speed Semiconductor Fuse?
The Mersen A300656 is a heavy-duty Protistor® square-body high-speed semiconductor fuse designed to protect sensitive power electronic components against damaging short-circuit currents. Its ultra-fast operating characteristic makes it suitable for safeguarding IGBT modules, thyristors, diodes and other semiconductor devices used in high-power industrial electrical systems.
As part of the established Mersen Protistor® semiconductor fuse range, the A300656 provides rapid fault interruption with low let-through energy. This helps minimise thermal and mechanical stress on protected components, reducing the likelihood of secondary equipment damage and supporting improved system reliability.
Featuring a rated current of 1000 A and voltage ratings of 1250 V AC to IEC standards and 1300 V AC to UL standards, the Mersen A300656 is suitable for high-capacity variable frequency drives, industrial converters, rectifiers, UPS equipment and power-control systems. Its robust square-body construction and blade connections support secure installation in compatible fuse holders and bolted busbar assemblies.
Key Advantages
- Ultra-fast aR semiconductor fuse protection.
- 1000 A rated current for high-power industrial equipment.
- 1250 V AC IEC and 1300 V AC UL voltage ratings.
- Low let-through energy helps protect valuable semiconductor modules.
- Rapid short-circuit interruption reduces secondary equipment damage.
- Heavy-duty construction for demanding power-conversion applications.
Key Features
- Mersen Protistor® high-speed fuse series.
- Square-body semiconductor fuse.
- 1000 A rated current.
- 1250 V AC IEC / 1300 V AC UL rated voltage.
- aR ultra-fast utilisation category.
- Heavy-duty blade terminal connections.
- Low let-through energy and controlled arc interruption.
- Engineered for short-circuit protection of power semiconductors.
Reliable Protection for High-Power Electronics
Power semiconductor devices can sustain permanent damage when exposed to excessive short-circuit energy, even for a very brief period. High-speed fuses such as the Mersen A300656 use precision-engineered fuse elements to interrupt fault currents rapidly and restrict the amount of energy transferred into the protected circuit.
This controlled fault-clearing performance makes the A300656 suitable for installations where equipment availability, semiconductor protection and operational reliability are essential. Correct fuse coordination can help protect expensive power modules, minimise secondary damage and reduce maintenance-related downtime.
Typical Applications
- High-power variable frequency drives.
- Industrial inverters and converters.
- Rectifier and thyristor assemblies.
- Uninterruptible power supply systems.
- High-capacity motor drives and soft starters.
- Industrial power supplies and automation equipment.
Technical Specifications
Tick the specs you need, then view products that match.
| Fuse Indication | Striker | |
|---|---|---|
| Fuse Type | Semiconductor | |
| Fuse Class | aR | |
| Voltage | 1250 V | |
| Item number | A300656 | |
| Catalogue No | A130UD70LI160 | |
| Description | Square Body High-Speed Fuse Protistor® Size 70 aR 1250VAC IEC 1300VAC UL 160A With Striker Slotted Blades long | |
| EAN/UPC Code | 3605340331752 | |
| Rated voltage AC UL | 1300 V | |
| Rated voltage AC IEC | 1250 V | |
| Ampere Rating | 160 A | |
| AC or DC | AC | |
| Speed/Characteristic | aR | |
| Fuse Size | 70 | |
| Mounting | Bolted | |
| Clearing I2t At Rated Voltage | 21000 A²s | |
| Melting I2t | 2570 A²s | |
| 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 | 39.8 mm | |
| Product Length | 152.4 mm | |
| Product Height | 49.5 mm | |
| Sell Pack Quantity | 3 EA | |
| Sell Pack Weight | 1.1298 kg | |
| Sell Pack Width | 133 mm | |
| Sell Pack Length | 157 mm | |
| Sell Pack Height | 54 mm | |
| Product group | Semiconductor Protection Fuses | |
| Body/Insulating Material | Ceramic | |
| Product Weight | 0.3766 kg | |
| Power Dissipation at Rated Current Value | 45 W | |
| HS Code | 85351000 |
Frequently Asked Questions
What is the Mersen A300656 used for?
The Mersen A300656 provides high-speed short-circuit protection for semiconductor devices installed in industrial drives, converters, rectifiers and other high-power electronic equipment.
What is the rated current of the Mersen A300656?
The Mersen A300656 has a rated current of 1000 A.
What voltage is the A300656 rated for?
The fuse is rated for up to 1250 V AC under IEC specifications and 1300 V AC under UL specifications.
What does the aR fuse classification mean?
The aR classification identifies a partial-range fuse with an ultra-fast operating characteristic designed specifically for short-circuit protection of semiconductor devices.
Does the A300656 provide overload protection?
An aR semiconductor fuse is primarily intended for short-circuit protection. Suitable overload protection should be provided separately by the equipment’s monitoring, control or protective system.
Trusted by Power Electronics Professionals
Mersen Protistor® fuses are specified by industrial engineers, system integrators and equipment manufacturers for dependable high-speed protection of critical semiconductor and power-conversion equipment.
