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MERSEN FUSE 10 URD 273 TTF 2000 10URD273TTF2000
High-speed Protistor® fuse delivering rapid response and reliable semiconductor protection at 2000A up to 1000VAC with striker flush ends and metric threads.
£394.20
Why Choose the Mersen P300738 Protistor® High-Speed Fuse?
The Mersen P300738 is a heavy-duty Protistor® Size 2×73 high-speed semiconductor fuse engineered to provide exceptional protection for high-power semiconductor equipment operating in demanding industrial environments. Designed for critical power conversion applications, it protects diodes, thyristors, GTOs and IGBT devices against damaging short-circuit faults while helping maximise equipment uptime and reliability.
Manufactured as part of the Mersen Protistor® 2×73 series, the P300738 features a square ceramic body with TTF threaded terminals and ultra-fast aR operating characteristics. Precision silver fuse elements embedded in solidified sand provide low let-through energy, excellent current limitation and high interrupting performance for demanding power-electronic installations.
Rated at 2000 A with a 1000 V AC IEC voltage rating, the P300738 is ideally suited to high-power converters, renewable energy systems, industrial drives, UPS installations and heavy-duty power distribution equipment requiring dependable semiconductor protection.
Key Advantages
- Ultra-fast aR semiconductor protection fuse.
- 2000 A current rating for very high-power applications.
- 1000 V AC IEC operating voltage.
- Protects diodes, thyristors, GTOs and IGBT devices.
- 120 kA AC breaking capacity.
- Designed for demanding industrial power-conversion equipment.
Key Features
- Mersen Protistor® Size 2×73 series.
- Catalogue number: PC273UD10C20CTF.
- 2000 A rated current.
- 1000 V AC IEC rated voltage.
- aR ultra-fast semiconductor protection characteristic.
- TTF threaded terminal configuration.
- Square ceramic body construction.
- Silver-plated contacts for reliable electrical performance.
Reliable Protection for High-Power Electronics
The Mersen P300738 has been specifically developed for modern high-power semiconductor systems where rapid fault interruption is essential. Its advanced fuse technology provides excellent current limitation, helping minimise thermal stress and reduce the risk of costly damage to valuable semiconductor assemblies.
Its combination of a 2000 A current rating, high interrupting capacity and ultra-fast response makes it suitable for demanding industrial power conversion systems where reliable semiconductor protection is critical to operational continuity.
Typical Applications
- High-power variable speed drives.
- Industrial power converters.
- Renewable energy inverter systems.
- Large UPS installations.
- Traction and heavy industrial equipment.
- High-current power distribution systems.
Technical Specifications
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| Fuse Indication | Striker | |
|---|---|---|
| Fuse Type | Semiconductor | |
| Fuse Size | 2x73 mm | |
| Fuse Class | aR | |
| Voltage | 1000 V | |
| Item number | P300738 | |
| Catalogue No | PC273UD10C20CTF | |
| Description | Square Body High-Speed Fuse Protistor® 2x73 aR 1000VAC IEC 2000A With Striker Flush ends metric threads | |
| EAN/UPC Code | 3605340332834 | |
| Rated voltage AC IEC | 1000 V | |
| Ampere Rating | 2000 A | |
| RoHS Compliant | Yes | |
| AC or DC | AC | |
| Speed/Characteristic | aR | |
| Fuse Size | 2x73 | |
| Mounting | Bolted | |
| Clearing I2t At Rated Voltage | 8500 kA²s | |
| Melting I2t | 1480 kA²s | |
| AC Max I.R./Breaking Capacity | I1: 120 kA | |
| Indication System | Yes | |
| Indication System Type | Striker | |
| Connection/Terminal Material | Silver-Plated Brass | |
| Connection/Terminal Type | Flush ends | |
| Product Width | 167 mm | |
| Product Length | 91 mm | |
| Product Height | 78.5 mm | |
| Sell Pack Quantity | 1 EA | |
| Sell Pack Weight | 2.53 kg | |
| Sell Pack Width | 90 mm | |
| Sell Pack Length | 205 mm | |
| Sell Pack Height | 95 mm | |
| Product group | Semiconductor Protection Fuses | |
| Body/Insulating Material | Ceramic | |
| Product Weight | 2.53 kg | |
| Power Dissipation at Rated Current Value | 319 W | |
| HS Code | 85361090 | |
| Country of Manufacture | France |
Frequently Asked Questions
What is the Mersen P300738 used for?
The P300738 is an ultra-fast semiconductor fuse designed to protect high-power semiconductor devices such as diodes, thyristors, GTOs and IGBTs from damaging short-circuit faults.
What is the current rating of the P300738?
The Mersen P300738 has a continuous current rating of 2000 A.
What voltage is the P300738 rated for?
The fuse is rated at 1000 V AC (IEC).
What type of terminals does the P300738 use?
The fuse is supplied with TTF threaded terminals for secure installation in high-current industrial applications.
Which applications commonly use this fuse?
The P300738 is commonly installed in high-power drives, converters, renewable energy equipment, UPS systems and other heavy-duty semiconductor power conversion equipment.
Trusted by Power Electronics Professionals Worldwide
Mersen Protistor® semiconductor fuses are trusted worldwide by OEMs, electrical engineers and industrial maintenance teams to provide dependable protection for high-value power electronic equipment.
