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MERSEN FUSE 6,9 URD 31 EF 0450 6,9URD31EF0450
High-speed Protistor® fuse with a robust square body design, rated for 450A at 690VAC IEC and 700VAC UL, featuring integrated striker indication and open slot blade terminals for semiconductor protection.
£95.07
Why Choose the Mersen G300041 Protistor® High Speed Fuse?
The Mersen G300041 is a genuine Protistor® square body high speed semiconductor fuse designed to provide rapid protection for modern power electronic equipment. As part of the proven Protistor® Size 31 aR series, it is engineered to safeguard sensitive semiconductor devices including IGBTs, thyristors and diodes from damaging short circuit conditions.
With a 450 A current rating and a 690 V AC IEC / 700 V AC UL voltage rating, the G300041 delivers dependable circuit protection for industrial drives, inverters, UPS systems and power conversion equipment. Its ultra-fast aR characteristic helps minimise let-through energy, reducing the risk of costly damage and unplanned downtime.
Supplied under manufacturer part number G300041 and catalogue number PC31UD69V450EF, this fuse features open slot blade terminals with an integrated striker indicator for simple monitoring and maintenance within industrial electrical systems.
Key Advantages
- Genuine Mersen Protistor® high speed semiconductor fuse.
- 450 A current rating for industrial power applications.
- 690 V AC IEC / 700 V AC UL rated operation.
- Ultra-fast aR characteristic for semiconductor protection.
- Integrated striker for fuse status indication.
- Designed to reduce equipment damage and minimise downtime.
Key Features
- Mersen Protistor® Size 31 series.
- Model G300041.
- Catalogue number PC31UD69V450EF.
- 450 A rated current.
- 690 V AC IEC / 700 V AC UL.
- Square body fuse with open slot blade terminals.
- Integrated striker indication.
- Silver-plated contact surfaces for reliable electrical performance.
Reliable Protection for Power Electronics
High speed semiconductor fuses are specifically designed to protect sensitive electronic power devices that require extremely rapid fault interruption. Their low let-through energy helps protect expensive semiconductor assemblies while maintaining reliable system performance and operational safety.
The Mersen Protistor® range is widely used throughout industrial automation, renewable energy, motor drives and power conversion systems where dependable semiconductor protection is essential.
Typical Applications
- Variable frequency drives (VFDs).
- Industrial inverters.
- UPS systems.
- Motor drives and soft starters.
- Renewable energy power converters.
- Industrial automation equipment.
Technical Specifications
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| Fuse Indication | Striker | |
|---|---|---|
| Fuse Type | Semiconductor | |
| Fuse Class | aR | |
| Voltage | 690 V | |
| Item number | G300041 | |
| Catalogue No | PC31UD69V450EF | |
| Description | Square Body High-Speed Fuse Protistor® Size 31 aR 690VAC IEC 700VAC UL 450A With Striker Open Slot Blades | |
| EAN/UPC Code | 3605340322651 | |
| Rated voltage AC UL | 700 V | |
| Rated voltage AC IEC | 690 V | |
| Ampere Rating | 450 A | |
| RoHS Compliant | Yes | |
| AC or DC | AC | |
| Speed/Characteristic | aR | |
| Fuse Size | 31 | |
| Mounting | Bolted | |
| Clearing I2t At Rated Voltage | 155000 A²s | |
| Melting I2t | 26500 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 | Open Slot Blades | |
| Product Width | 51 mm | |
| Product Length | 109.4 mm | |
| Product Height | 56.5 mm | |
| Sell Pack Quantity | 3 EA | |
| Sell Pack Weight | 1.2129 kg | |
| Sell Pack Width | 143 mm | |
| Sell Pack Length | 175 mm | |
| Sell Pack Height | 73 mm | |
| Product group | Semiconductor Protection Fuses | |
| Body/Insulating Material | Ceramic | |
| Product Weight | 0.4043 kg | |
| Power Dissipation at Rated Current Value | 70 W | |
| HS Code | 85361090 | |
| Country of Manufacture | France |
Frequently Asked Questions
What is the Mersen G300041 used for?
The Mersen G300041 is a high speed semiconductor fuse designed to protect power electronic equipment against short circuit and overcurrent faults.
What is the current rating of this fuse?
The fuse has a rated current of 450 A.
What voltage is the G300041 rated for?
It is rated for 690 V AC (IEC) and 700 V AC (UL).
What does the aR characteristic mean?
The aR operating characteristic provides ultra-fast protection specifically for semiconductor devices such as IGBTs, thyristors and diodes.
Where is this fuse commonly installed?
It is commonly installed in industrial drives, inverters, UPS systems, renewable energy equipment and other power conversion applications.
Trusted by Industrial Engineers Worldwide
Mersen Protistor® semiconductor fuses are trusted by OEMs, panel builders and maintenance engineers for reliable protection of critical power electronic equipment in demanding industrial environments.
