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MERSEN FUSE 12,5 URD 71 TT F 0450 12,5URD71TTF0450
MPN: E300522
Alt. SKU: PC71UD13C450TF
Special Price
£99.58
£82.98
Regular Price
£181.04
MERSEN FUSE 12,5 URD 71 TT F 0450 12,5URD71TTF0450 is available to buy in increments of 3
Why Choose the Square Body High-Speed Fuse Protistor® Size 71 aR 1250VAC IEC 1300VAC UL 450A With Striker Flush Ends Metric Threads PC71UD13C450TF?
This high-performance Protistor® fuse offers rapid circuit protection for sensitive semiconductor devices, ensuring minimal let-through energy and maintaining system integrity during fault conditions. Rated for 1250VAC IEC and 1300VAC UL at 450A, it delivers reliable operation in demanding industrial electrical environments.
Featuring a robust square body design, flush striker ends with metric threads for secure mounting, and compliance with major global standards, this fuse is ideal for critical applications requiring fast-acting, dependable protection. Engineered for straightforward integration, it maximises safety and equipment longevity.
Technical Specifications
- Item number: E300522
- Catalogue No: PC71UD13C450TF
- Description: Square Body High-Speed Fuse Protistor® Size 71 aR 1250VAC IEC 1300VAC UL 450A With Striker Flush ends metric threads
- EAN/UPC Code: 3605340329742
- Rated voltage AC UL: 1300 V
- Rated voltage AC IEC: 1250 V
- Ampere Rating: 450 A
- AC or DC: AC
- Speed/Characteristic: aR
- Fuse Size: 71
- Mounting: Bolted
- Clearing I2t At Rated Voltage: 378 kA²s
- Melting I2t: 47.2 kA²s
- AC Max I.R./Breaking Capacity: I1: 126 kA
- Indication System: Yes
- Indication System Type: Striker
- Connection/Terminal Material: Silver-Plated Brass
- Connection/Terminal Type: Flush ends
- Product Width: 51 mm
- Product Length: 74 mm
- Product Height: 56.5 mm
- Sell Pack Quantity: 3 EA
- Sell Pack Weight: 1.545 kg
- Sell Pack Width: 90 mm
- Sell Pack Length: 170 mm
- Sell Pack Height: 70 mm
- Product group: Semiconductor Protection Fuses
- Body/Insulating Material: Ceramic
- Product Weight: 0.515 kg
- Power Dissipation at Rated Current Value: 87 W
Product Code: E300522
Key Benefits
- Rapid circuit protection minimising damage to sensitive semiconductor components.
- High breaking capacity of 126 kA ensures reliable interruption of fault currents.
- Flush ends with metric threads provide secure and easy installation.
- Striker indication system offers clear visual status of fuse operation.
- Ceramic body enhances durability and thermal stability.
- Compliant with IEC and UL standards for global application.
Compatibility
This fuse is compatible with industrial electrical systems requiring high-speed protection for semiconductor devices. It integrates seamlessly with bolted mounting fuse holders designed for size 71 aR fuses, and is suitable for use in AC circuits operating up to 1300VAC UL and 1250VAC IEC ratings.
Applications
- Protection of power semiconductor devices such as thyristors and diodes.
- Industrial motor drives and inverters.
- Power supplies and transformers requiring high-speed fuse protection.
- Renewable energy systems including solar and wind power converters.
- General industrial electrical panels and equipment protection.
Frequently Asked Questions
What does the aR characteristic mean?
The aR (partial range) characteristic indicates the fuse is designed for semiconductor protection, providing rapid interruption of overloads and short circuits while allowing inrush currents typical of semiconductor devices.
Can this fuse be used in DC applications?
This fuse is specified for AC applications only, as indicated by the AC or DC rating. For DC applications, a fuse specifically rated for DC should be used.
How does the striker indication system work?
The striker indication system provides a visual signal when the fuse has operated, making it easier to identify blown fuses without disassembly.
Is this fuse suitable for use in high vibration environments?
The ceramic body and bolted mounting with flush ends and metric threads provide robust mechanical stability, making it suitable for many industrial environments including those with moderate vibration.
Common Search Terms
high-speed fuse, semiconductor protection fuse, aR fuse, size 71 fuse, 450A fuse, 1250VAC fuse, 1300VAC fuse, Protistor fuse, striker indication fuse, bolted mounting fuse, ceramic body fuse
| Manufacturer Part Number | E300522 |
|---|---|
| Packed Quantity | 3 |
| Barcode | 3605340329742 |
| Height | 74mm |
| Width | 51mm |
| Depth | 56.5mm |
| HS Code | 85351000 |
| Manufacturer | Mersen |
| Alternative Product SKU | PC71UD13C450TF |
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