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MERSEN FUSE 6,9 URD 33 D11 A 0800 6,9URD33D11A0800
High-speed fuse designed for industrial and power electronics protection with rapid response to overloads and short circuits, featuring a robust ceramic square body and DIN 110 blade terminals.
£128.30
Why Choose the Mersen X300262 Protistor® High-Speed Fuse?
The Mersen X300262 is a premium square body semiconductor protection fuse engineered to deliver ultra-fast protection for sensitive power semiconductor devices including IGBTs, thyristors and diodes. As part of the proven Mersen Protistor® Size 33 aR series, it provides exceptional short-circuit protection for demanding industrial power conversion and automation systems.
Designed with low energy let-through characteristics and a high interrupting capacity, the X300262 helps minimise damage to expensive semiconductor components while improving equipment reliability and reducing downtime. Its robust square body construction, silver-plated contacts and integrated striker indicator make it ideal for use in critical industrial electrical installations.
With a rated current of 800 A and a 690 V AC IEC / 700 V AC UL voltage rating, the Mersen X300262 is ideally suited for protecting industrial drives, UPS systems, power converters, renewable energy inverters and other high-power electronic equipment.
Key Advantages
- Ultra-fast aR semiconductor protection fuse for sensitive electronic equipment.
- 800 A current rating for high-power industrial applications.
- 690 V AC IEC / 700 V AC UL voltage capability.
- 200 kA breaking capacity provides excellent fault protection.
- Integrated striker indicator for simplified maintenance.
- Silver-plated terminals ensure reliable electrical performance.
Key Features
- Mersen Protistor® Size 33 series.
- 800 A rated current.
- 690 V AC IEC / 700 V AC UL rated voltage.
- aR ultra-fast operating characteristic.
- Integrated striker indication system.
- DIN 110 blade terminals.
- Square body bolted construction.
- Designed for semiconductor protection applications.
Reliable Semiconductor Protection
High-speed semiconductor fuses are specifically engineered to interrupt fault currents before damage can occur to expensive power electronic devices. Their ultra-fast response helps minimise thermal stress while improving the reliability and service life of industrial power conversion equipment.
The Mersen Protistor® range is trusted worldwide across industrial automation, renewable energy, transportation and heavy industry, providing dependable protection for modern semiconductor-based systems.
Typical Applications
- Variable frequency drives (VFDs).
- Industrial motor drives.
- UPS systems.
- Power converters and rectifiers.
- Renewable energy inverters.
- Industrial automation and power electronics.
Technical Specifications
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| Fuse Indication | Striker | |
|---|---|---|
| Fuse Type | Semiconductor | |
| Fuse Class | aR | |
| Voltage | 690 V | |
| Item number | X300262 | |
| Catalogue No | PC33UD69V800D1A | |
| Description | Square Body High-Speed Fuse Protistor® Size 33 aR 690VAC IEC 700VAC UL 800A With Striker DIN 110 Blades | |
| EAN/UPC Code | 3605340325973 | |
| Rated voltage AC UL | 700 V | |
| Rated voltage AC IEC | 690 V | |
| Ampere Rating | 800 A | |
| RoHS Compliant | Yes | |
| AC or DC | AC | |
| Speed/Characteristic | aR | |
| Fuse Size | 33 | |
| Mounting | Bolted | |
| Clearing I2t At Rated Voltage | 540 kA²s | |
| Melting I2t | 93 kA²s | |
| AC Max I.R./Breaking Capacity | I1: 200 kA | |
| Design Details | Standard Terminal | |
| Indication System | Yes | |
| Indication System Type | Striker | |
| Connection/Terminal Material | Silver-Plated Copper | |
| Connection/Terminal Type | DIN 110 Blades | |
| Product Width | 73 mm | |
| Product Length | 134.6 mm | |
| Product Height | 78.5 mm | |
| Sell Pack Quantity | 3 EA | |
| Sell Pack Weight | 2.622 kg | |
| Sell Pack Width | 140 mm | |
| Sell Pack Length | 240 mm | |
| Sell Pack Height | 90 mm | |
| Product group | Semiconductor Protection Fuses | |
| Body/Insulating Material | Ceramic | |
| Product Weight | 0.874 kg | |
| Power Dissipation at Rated Current Value | 130 W | |
| HS Code | 85361090 |
Frequently Asked Questions
What is the Mersen X300262 used for?
The X300262 provides ultra-fast protection for semiconductor devices including IGBTs, thyristors and diodes used in industrial power conversion equipment.
What is the current rating of the X300262?
This fuse has a rated current of 800 A.
What voltage is the Mersen X300262 rated for?
The fuse is rated for 690 V AC (IEC) and 700 V AC (UL).
Does the X300262 include a blown fuse indicator?
Yes. It incorporates an integrated striker indicator that can be used with a compatible microswitch for remote indication.
Where is the Mersen X300262 typically installed?
It is commonly installed in industrial drives, UPS systems, converters, renewable energy equipment and other power electronic systems requiring semiconductor protection.
Trusted Protection for Industrial Power Electronics
Mersen Protistor® semiconductor protection fuses are trusted worldwide to safeguard critical power electronic equipment, delivering high interrupting capacity, rapid fault clearance and dependable long-term performance.
