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MERSEN FUSE 6,9 URD 31 D08 A 0250 6,9URD31D08A0250
High-speed aR fuse designed for semiconductor protection with integrated striker and DIN 80 blade terminals, rated 250A at 690VAC IEC and 700VAC UL.
£69.04
Why Choose the Mersen Z300011 Protistor® High-Speed Fuse?
The Mersen Z300011 (PC31UD69V250A) is a premium square body high-speed semiconductor fuse developed to provide advanced protection for modern power electronic equipment. As part of the renowned Mersen Protistor® Size 31 series, this ultra-fast acting aR fuse safeguards sensitive semiconductor devices including IGBTs, thyristors and diodes used in industrial power conversion systems.
Designed to minimise damage during short-circuit events, the Z300011 delivers outstanding current limitation and low let-through energy, helping maximise equipment uptime while protecting valuable electronic components. Its square body construction, silver-plated DIN 80 blade terminals and integrated striker ensure reliable performance in demanding industrial environments.
With a rated current of 250 A and a 690 V AC IEC / 700 V AC UL voltage rating, the Mersen Z300011 is ideal for variable frequency drives, UPS systems, converters, renewable energy equipment and other industrial applications requiring dependable semiconductor protection.
Key Advantages
- Ultra-fast aR semiconductor protection fuse.
- 250 A current rating for industrial power electronics.
- 690 V AC IEC / 700 V AC UL voltage capability.
- Protects IGBTs, thyristors, diodes and semiconductor modules.
- Integrated striker indication for remote monitoring.
- Low I²t performance helps minimise semiconductor damage during faults.
Key Features
- Mersen Protistor® Size 31 series.
- Catalogue number: PC31UD69V250A.
- 250 A rated current.
- 690 V AC IEC / 700 V AC UL voltage rating.
- Ultra-fast aR operating characteristic.
- DIN 80 silver-plated blade terminals.
- Integrated striker for fuse operation indication.
- Ceramic body with high interrupting capacity.
Reliable Protection for Power Electronics
High-speed semiconductor fuses are specifically designed to protect sensitive power electronic devices against destructive short-circuit currents. Their ultra-fast operating characteristics reduce let-through energy, helping extend the service life of converters, drives and other industrial equipment.
The Mersen Protistor® Size 31 range is widely used by OEMs, panel builders and maintenance engineers for protecting industrial power conversion equipment where dependable semiconductor protection is critical to maintaining productivity.
Typical Applications
- Variable frequency drives (VFDs).
- Industrial motor control systems.
- Power converters and rectifiers.
- UPS and backup power equipment.
- Renewable energy inverters.
- Industrial automation and power distribution 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 | Z300011 | |
| Catalogue No | PC31UD69V250A | |
| Description | Square Body High-Speed Fuse Protistor® Size 31 aR 690VAC IEC 700VAC UL 250A With Striker DIN 80 Blades | |
| EAN/UPC Code | 3605340322354 | |
| Rated voltage AC UL | 700 V | |
| Rated voltage AC IEC | 690 V | |
| Ampere Rating | 250 A | |
| RoHS Compliant | Yes | |
| AC or DC | AC | |
| Speed/Characteristic | aR | |
| Fuse Size | 31 | |
| Mounting | Bolted | |
| Clearing I2t At Rated Voltage | 28000 A²s | |
| Melting I2t | 4700 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 | 52 W | |
| HS Code | 85361090 | |
| Country of Manufacture | France |
Frequently Asked Questions
What is the Mersen Z300011 used for?
The Z300011 is a high-speed semiconductor fuse designed to protect IGBTs, thyristors, diodes and other semiconductor devices against short-circuit faults.
What is the current rating of this fuse?
This fuse has a continuous current rating of 250 A.
What voltage is the fuse rated for?
The fuse is rated for 690 V AC (IEC) and 700 V AC (UL).
What is the purpose of the integrated striker?
The striker provides mechanical indication when the fuse operates and can be used with compatible auxiliary microswitches for remote monitoring.
Where is this fuse commonly installed?
It is commonly used in industrial drives, converters, UPS systems and renewable energy equipment requiring reliable semiconductor protection.
Trusted for Industrial Semiconductor Protection
Mersen Protistor® semiconductor fuses are trusted worldwide by industrial engineers and equipment manufacturers for delivering dependable protection of high-value power electronic systems.
