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MERSEN FUSE 6 URD 33 TT F 1800 PC33UD60V1800TF
High-speed semiconductor protection fuse with aR characteristic, rated 1800A at 600VAC IEC and 650VAC UL. Features striker flush ends with metric threads and bolted mounting.
£225.09
Why Choose the Mersen A300587 High-Speed Semiconductor Fuse?
The Mersen A300587 is a robust Protistor® square-body high-speed semiconductor fuse developed to protect sensitive power electronic components against damaging short-circuit currents. Its ultra-fast operating response makes it suitable for safeguarding diodes, thyristors, IGBT modules and other semiconductor devices used in demanding industrial power systems.
As part of the established Mersen Protistor® semiconductor fuse range, the A300587 provides low let-through energy and dependable fault interruption. These characteristics help minimise thermal and mechanical stress on protected components, reducing the risk of extensive equipment damage and costly production downtime.
Featuring a rated current of 500 A and voltage ratings of 1250 V AC to IEC standards and 1300 V AC to UL standards, the Mersen A300587 is suitable for high-power variable frequency drives, industrial converters, rectifiers, UPS equipment and motor-control systems. Its square-body construction and blade connections support secure installation in compatible fuse holders and power assemblies.
Key Advantages
- Ultra-fast aR semiconductor fuse protection.
- 500 A rated current for high-power electrical equipment.
- 1250 V AC IEC and 1300 V AC UL voltage ratings.
- Low let-through energy helps limit semiconductor damage.
- High interrupting performance for demanding fault conditions.
- Designed for reliable operation in industrial power-conversion systems.
Key Features
- Mersen Protistor® high-speed fuse series.
- Square-body semiconductor fuse.
- 500 A rated current.
- 1250 V AC IEC / 1300 V AC UL rated voltage.
- aR ultra-fast utilisation category.
- Blade-style terminal connections.
- Low power losses and controlled arc interruption.
- Engineered for short-circuit protection of power semiconductors.
Reliable Protection for High-Power Electronics
Semiconductor devices can be permanently damaged by fault currents before conventional industrial fuses have time to operate. High-speed fuses such as the Mersen A300587 use specially engineered fuse elements to interrupt short-circuit currents rapidly and restrict the amount of energy passed into the protected circuit.
This controlled fault-clearing performance makes the A300587 suitable for equipment in which operational reliability and semiconductor protection are critical. Correct fuse coordination can help protect expensive electronic modules, reduce secondary equipment damage and shorten maintenance-related downtime.
Typical Applications
- High-power variable frequency drives.
- Industrial inverters and converters.
- Rectifier and thyristor assemblies.
- Uninterruptible power supply systems.
- Motor drives and soft starters.
- Industrial power supplies and automation equipment.
Technical Specifications
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| Fuse Indication | Striker | |
|---|---|---|
| Fuse Type | Semiconductor | |
| Fuse Class | aR | |
| Voltage | 600 V | |
| Item number | A300587 | |
| Catalogue No | PC33UD60V1800TF | |
| Description | Square Body High-Speed Fuse Protistor® Size 33 aR 600VAC IEC 650VAC UL 1800A With Striker Flush ends metric threads | |
| EAN/UPC Code | 3605340330700 | |
| Rated voltage AC UL | 650 V | |
| Rated voltage AC IEC | 600 V | |
| Ampere Rating | 1800 A | |
| RoHS Compliant | Yes | |
| AC or DC | AC | |
| Speed/Characteristic | aR | |
| Fuse Size | 33 | |
| Mounting | Bolted | |
| Clearing I2t At Rated Voltage | 3870 kA²s | |
| Melting I2t | 720 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 Brass | |
| Connection/Terminal Type | Flush ends | |
| Product Width | 73 mm | |
| Product Length | 50.6 mm | |
| Product Height | 78.5 mm | |
| Sell Pack Quantity | 3 EA | |
| Sell Pack Weight | 2.4168 kg | |
| Sell Pack Width | 85 mm | |
| Sell Pack Length | 245 mm | |
| Sell Pack Height | 95 mm | |
| Product group | Semiconductor Protection Fuses | |
| Body/Insulating Material | Ceramic | |
| Product Weight | 0.8056 kg | |
| Power Dissipation at Rated Current Value | 225 W | |
| HS Code | 85361090 |
Frequently Asked Questions
What is the Mersen A300587 used for?
The Mersen A300587 is used for high-speed short-circuit protection of semiconductor devices installed in industrial drives, converters, rectifiers and other power electronic equipment.
What is the rated current of the Mersen A300587?
The Mersen A300587 has a rated current of 500 A.
What voltage is the A300587 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 to provide short-circuit protection for semiconductor devices.
Can the A300587 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 control, monitoring 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.
