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MERSEN FUSE A 070 URD 32 TTI 1000 A070URD32TTI1000
High-speed fuse with 1000A rating, 690VAC IEC and 700VAC UL voltage ratings, featuring striker indication and flush ends with UNC threads for bolted mounting.
£147.94
Why Choose the Mersen X300469 Protistor® High-Speed Fuse?
The Mersen X300469 is a heavy-duty square body semiconductor protection fuse engineered to provide ultra-fast protection for sensitive power semiconductor devices including IGBTs, thyristors and diodes. As part of the proven Mersen Protistor® Size 32 aR series, it delivers exceptional protection for modern power conversion equipment operating in demanding industrial environments.
Designed with low energy let-through characteristics and a high interrupting capacity, the X300469 minimises damage during short-circuit faults while helping maximise equipment uptime. The fuse incorporates silver-plated contact surfaces, reinforced threaded flush-end terminals and an integrated striker indicator for simplified maintenance and system monitoring.
With a 1000 A current rating and a 690 V AC IEC / 700 V AC UL voltage rating, the Mersen X300469 is ideally suited for industrial drives, UPS systems, power converters, renewable energy equipment and other high-power electronic applications requiring dependable semiconductor protection.
Key Advantages
- Ultra-fast aR semiconductor protection fuse.
- 1000 A current rating for demanding industrial applications.
- 690 V AC IEC / 700 V AC UL voltage capability.
- 200 kA breaking capacity for excellent short-circuit protection.
- Integrated striker indicator for convenient maintenance.
- Silver-plated contact surfaces for reliable electrical performance.
Key Features
- Mersen Protistor® Size 32 series.
- 1000 A rated current.
- 690 V AC IEC / 700 V AC UL rated voltage.
- aR ultra-fast operating characteristic.
- Integrated striker indication system.
- Flush-end reinforced UNC threaded terminals.
- Square body bolted construction.
- Designed specifically for semiconductor protection.
Reliable Semiconductor Protection
High-speed semiconductor fuses are specifically designed to interrupt high fault currents before expensive semiconductor devices can be damaged. Their ultra-fast response helps minimise thermal stress while maintaining the reliability and performance of industrial power conversion equipment.
The Mersen Protistor® range is widely used throughout industrial automation, renewable energy, transportation and heavy industry, providing dependable protection for semiconductor-based systems including drives, converters and UPS equipment.
Typical Applications
- Variable frequency drives (VFDs).
- Industrial motor drives.
- Power converters and rectifiers.
- UPS systems.
- Renewable energy inverters.
- Industrial automation and power electronic equipment.
Technical Specifications
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| Fuse Indication | Striker | |
|---|---|---|
| Fuse Type | Semiconductor | |
| Fuse Class | aR | |
| Voltage | 690 V | |
| Item number | X300469 | |
| Catalogue No | A070UD32TTI1000 | |
| Description | Square Body High-Speed Fuse Protistor® Size 32 aR 690VAC IEC 700VAC UL 1000A With Striker Flush ends UNC threads | |
| EAN/UPC Code | 3605340328974 | |
| Rated voltage AC UL | 700 V | |
| Rated voltage AC IEC | 690 V | |
| Ampere Rating | 1000 A | |
| RoHS Compliant | Yes | |
| AC or DC | AC | |
| Speed/Characteristic | aR | |
| Fuse Size | 32 | |
| Mounting | Bolted | |
| Clearing I2t At Rated Voltage | 1380 kA²s | |
| Melting I2t | 230 kA²s | |
| AC Max I.R./Breaking Capacity | I1: 200 kA | |
| Design Details | Reinforced Terminal | |
| Indication System | Yes | |
| Indication System Type | Striker | |
| Connection/Terminal Material | Silver-Plated Brass | |
| Connection/Terminal Type | Flush ends | |
| Product Width | 59 mm | |
| Product Length | 50.6 mm | |
| Product Height | 65 mm | |
| Sell Pack Quantity | 3 EA | |
| Sell Pack Weight | 1.8099 kg | |
| Sell Pack Width | 145 mm | |
| Sell Pack Length | 245 mm | |
| Sell Pack Height | 90 mm | |
| Product group | Semiconductor Protection Fuses | |
| Body/Insulating Material | Ceramic | |
| Product Weight | 0.6033 kg | |
| Power Dissipation at Rated Current Value | 115 W | |
| HS Code | 85361090 | |
| Country of Manufacture | France |
Frequently Asked Questions
What is the Mersen X300469 used for?
The X300469 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 X300469?
This fuse has a 1000 A current rating.
What voltage is the Mersen X300469 rated for?
The fuse is rated for 690 V AC (IEC) and 700 V AC (UL).
Does the X300469 include a blown fuse indicator?
Yes. The fuse incorporates an integrated striker indicator that can operate a compatible microswitch for remote indication.
Where is the Mersen X300469 typically installed?
It is commonly installed in industrial drives, UPS systems, converters, renewable energy systems and other power electronic equipment requiring semiconductor protection.
Trusted Protection for Industrial Power Electronics
Mersen Protistor® semiconductor protection fuses are trusted worldwide to safeguard critical power electronic equipment by delivering rapid fault interruption, high breaking capacity and dependable long-term performance.
