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MERSEN FUSE A070 URD 33 TTI 0500 A070URD33TTI0500
MPN: X300446
Alt. SKU: A070UD33TTI500
Special Price
£101.38
£84.48
Regular Price
£184.32
MERSEN FUSE A070 URD 33 TTI 0500 A070URD33TTI0500 is available to buy in increments of 3
Why Choose the Square Body High-Speed Fuse Protistor® Size 33 aR 690VAC IEC 700VAC UL 500A With Striker Flush Ends UNC Threads?
Engineered for reliable protection of power semiconductors, the Protistor® Size 33 aR fuse offers fast-acting performance at 690VAC (IEC) and 700VAC (UL), with a robust 500A current rating. Its advanced design ensures rapid fault interruption, minimising downtime in demanding industrial environments.
Featuring striker flush ends and UNC threads for secure and straightforward installation, this fuse is ideal for high-speed circuit protection where precision and reliability are critical. Fully compliant with international standards, it supports safe and efficient operation of modern electrical systems.
Technical Specifications
- Item number: X300446
- Catalogue No: A070UD33TTI500
- Description: Square Body High-Speed Fuse Protistor® Size 33 aR 690VAC IEC 700VAC UL 500A With Striker Flush ends UNC threads
- EAN/UPC Code: 3605340328516
- 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: 33
- Mounting: Bolted
- Clearing I2t At Rated Voltage: 110 kA²s
- Melting I2t: 19 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 Brass
- Connection/Terminal Type: Flush ends
- Product Width: 73 mm
- Product Length: 50.6 mm
- Product Height: 78.5 mm
- Sell Pack Quantity: 3 EA
- Sell Pack Weight: 2.682 kg
- Sell Pack Width: 86 mm
- Sell Pack Length: 247 mm
- Sell Pack Height: 94 mm
- Product group: Semiconductor Protection Fuses
- Body/Insulating Material: Ceramic
- Product Weight: 0.894 kg
- Power Dissipation at Rated Current Value: 105 W
Product Code: X300446
Key Benefits
- Fast-acting aR characteristic for rapid fault interruption
- High current rating of 500A suitable for demanding industrial applications
- Compatible with both IEC (690VAC) and UL (700VAC) standards
- Striker indication system provides clear visual fault indication
- Robust ceramic body ensures durability and high insulation
- Flush ends with UNC threads enable secure and easy mounting
- Silver-plated brass terminals for reliable electrical connection
Compatibility
This fuse is compatible with standard bolted mounting fuse holders designed for Size 33 high-speed semiconductor protection fuses. It integrates seamlessly into industrial power semiconductor circuits requiring aR characteristic fuses, ensuring compliance with IEC and UL voltage ratings.
Applications
- Protection of power semiconductors such as thyristors and diodes
- Industrial motor drives and inverters
- Power conversion equipment
- Renewable energy systems including solar and wind power inverters
- High-speed circuit protection in manufacturing plants
Frequently Asked Questions
What does the aR speed characteristic mean?
The aR (partial range) characteristic means the fuse is designed to protect power semiconductors by interrupting short-circuits and overloads quickly, but it does not provide protection against overloads below a certain threshold.
Can this fuse be used in DC applications?
No, this particular fuse is rated for AC applications only, as specified in the technical specifications.
How does the striker indication system work?
When the fuse operates (blows), the striker mechanism is activated, providing a visual indication that the fuse has blown and needs replacement.
Are replacement fuses available in different current ratings?
Yes, Size 33 Protistor® fuses are available in various current ratings to suit different application requirements.
Common Search Terms
High-speed fuse, Protistor fuse, Size 33 fuse, semiconductor protection fuse, aR fuse, 500A fuse, 690VAC fuse, 700VAC fuse, striker fuse, flush end fuse, industrial fuse, power semiconductor protection
| Manufacturer Part Number | X300446 |
|---|---|
| Packed Quantity | 3 |
| Barcode | 3605340328516 |
| Height | 50.6mm |
| Width | 73mm |
| Depth | 78.5mm |
| HS Code | 85361090 |
| Manufacturer | Mersen |
| Alternative Product SKU | A070UD33TTI500 |
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