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MERSEN FUSE 6,9 URD 31 D08 A 0500 6,9URD31D08A0500
High-speed fuse designed for rapid protection of power semiconductors and critical circuits, rated 690VAC IEC, 700VAC UL, 500A with integrated striker indication and DIN 80 blade terminals.
£91.97
Why Choose the Mersen D300015 Protistor® High-Speed Semiconductor Fuse?
The Mersen D300015 is a premium Protistor® Size 31 square body high-speed semiconductor fuse designed to provide ultra-fast protection for sensitive power electronic equipment. Engineered for demanding industrial applications, this aR class fuse delivers partial-range semiconductor protection for diodes, thyristors, IGBTs and other power semiconductor devices operating on 690 V AC (IEC) and 700 V AC (UL) systems.
Manufactured by Mersen, the D300015 features a robust square body construction with DIN 80 silver-plated blade terminals and an integrated striker indicator for rapid fault indication and simplified maintenance. Its low let-through energy (I²t) and high breaking capacity provide exceptional protection for modern power conversion equipment.
With a 500 A current rating, 690 V AC IEC / 700 V AC UL voltage rating and an impressive 200 kA breaking capacity, the D300015 is ideally suited for variable speed drives, UPS systems, industrial inverters, converters and renewable energy installations.
Key Advantages
- Ultra-fast aR semiconductor protection fuse.
- 500 A rated current for demanding industrial applications.
- 690 V AC IEC / 700 V AC UL operation.
- Integrated striker indicator for quick fault identification.
- High 200 kA breaking capacity provides exceptional fault protection.
- Silver-plated DIN 80 blade terminals ensure reliable electrical connections.
Key Features
- Mersen Protistor® Size 31 semiconductor fuse.
- Catalogue number: PC31UD69V500A.
- 500 A current rating.
- 690 V AC IEC / 700 V AC UL voltage rating.
- aR operating class for semiconductor protection.
- Integrated striker indication system.
- DIN 80 silver-plated blade terminals.
- Square body bolted mounting design.
Reliable Protection for Power Electronics
High-speed semiconductor fuses are specifically designed to minimise damage caused by overloads and short circuits in sensitive electronic equipment. Their ultra-fast operating characteristics significantly reduce fault energy, helping extend the service life of expensive semiconductor devices while improving equipment reliability.
The Mersen Protistor® range is trusted worldwide across industrial automation, renewable energy, motor control and power conversion industries for delivering consistent protection, low I²t performance and outstanding interrupting capacity.
Typical Applications
- Variable speed drives (VSDs).
- Industrial inverters and converters.
- Power semiconductor protection.
- UPS systems.
- Renewable energy power conversion equipment.
- Industrial automation and motor control systems.
Technical Specifications
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| Fuse Indication | Striker | |
|---|---|---|
| Fuse Type | D / D0 (Neozed/Diazed), Semiconductor | |
| Fuse Class | aR | |
| Voltage | 690 V | |
| Item number | D300015 | |
| Catalogue No | PC31UD69V500A | |
| Description | Square Body High-Speed Fuse Protistor® Size 31 aR 690VAC IEC 700VAC UL 500A With Striker DIN 80 Blades | |
| EAN/UPC Code | 3605340322392 | |
| Rated voltage AC UL | 700 V | |
| Rated voltage AC IEC | 690 V | |
| Ampere Rating | 500 A | |
| RoHS Compliant | Yes | |
| AC or DC | AC | |
| Speed/Characteristic | aR | |
| Fuse Size | 31 | |
| Mounting | Bolted | |
| Clearing I2t At Rated Voltage | 215000 A²s | |
| Melting I2t | 37000 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 | DIN 80 Blades | |
| Product Width | 51 mm | |
| Product Length | 110 mm | |
| Product Height | 56.5 mm | |
| Sell Pack Quantity | 3 EA | |
| Sell Pack Weight | 1.1598 kg | |
| Sell Pack Width | 143 mm | |
| Sell Pack Length | 167 mm | |
| Sell Pack Height | 64 mm | |
| Product group | Semiconductor Protection Fuses | |
| Body/Insulating Material | Ceramic | |
| Product Weight | 0.3866 kg | |
| Power Dissipation at Rated Current Value | 72 W | |
| HS Code | 85361090 | |
| Country of Manufacture | France |
Frequently Asked Questions
What is the Mersen D300015 used for?
The Mersen D300015 protects power semiconductor devices including IGBTs, thyristors and diodes against short circuits and fault currents.
What is the current rating of this fuse?
The D300015 has a 500 A rated current.
What voltage systems is the fuse designed for?
It is rated for 690 V AC (IEC) and 700 V AC (UL) applications.
Does the fuse include a blown fuse indicator?
Yes. It incorporates an integrated striker indication system to simplify maintenance and fault detection.
Which applications commonly use this fuse?
It is widely used in variable speed drives, industrial converters, UPS systems, renewable energy equipment and semiconductor protection circuits.
Trusted for Semiconductor Protection Worldwide
Mersen Protistor® semiconductor fuses are trusted by OEM manufacturers, panel builders and industrial engineers worldwide for delivering dependable protection of critical power electronic equipment.
