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MERSEN FUSE 12,5 URD 73 TT F 0350 12,5URD73TTF0350
MPN: K300504
Alt. SKU: PC73UD13C350TF
Special Price
£111.90
£93.25
Regular Price
£203.45
Why Choose the Square Body High-Speed Fuse Protistor® Size 73 aR 1250VAC IEC 1300VAC UL 350A With Striker Flush Ends Metric Threads PC73UD13C350TF?
Engineered for reliability in demanding industrial power applications, this high-speed fuse delivers rapid, precise circuit protection at up to 1250VAC (IEC) and 1300VAC (UL), with a robust 350A current rating. Its aR class performance ensures swift operation during short-circuit events, safeguarding sensitive equipment and minimising downtime.
Featuring flush striker ends and metric thread terminals for secure, versatile installation, the PC73UD13C350TF integrates seamlessly into modern systems. Rigorously certified to IEC and UL standards, it is the preferred choice for technical professionals seeking safety, efficiency, and lasting durability in critical environments.
Product Code: K300504
Key Benefits
- High-speed aR fuse ensures rapid disconnection during short circuits, protecting sensitive semiconductor devices.
- Rated for up to 1300VAC (UL) and 1250VAC (IEC), suitable for high-voltage industrial applications.
- Flush striker ends with silver-plated brass terminals provide secure, reliable connections and easy indication of fuse status.
- Ceramic body offers excellent insulation and durability under harsh operating conditions.
- Metric threaded terminals enable versatile mounting options and secure installation.
- Certified to IEC and UL standards for assured safety and performance.
Compatibility
This fuse is compatible with Size 73 fuse holders and switchgear designed for semiconductor protection applications. It integrates seamlessly into bolted mounting systems and is suitable for use in industrial power distribution panels requiring high-speed fuse protection at 350A ratings.
Applications
- Protection of power semiconductor devices such as thyristors and diodes.
- Industrial motor drives and variable frequency drives.
- Power supplies and inverters in renewable energy systems.
- High-voltage industrial control panels and switchgear.
- General semiconductor protection in manufacturing and processing plants.
Technical Specifications
- Item number: K300504
- Catalogue No: PC73UD13C350TF
- Description: Square Body High-Speed Fuse Protistor® Size 73 aR 1250VAC IEC 1300VAC UL 350A With Striker Flush ends metric threads
- EAN/UPC Code: 3605340329445
- Rated voltage AC UL: 1300 V
- Rated voltage AC IEC: 1250 V
- Ampere Rating: 350 A
- AC or DC: AC
- Speed/Characteristic: aR
- Fuse Size: 73
- Mounting: Bolted
- Clearing I2t At Rated Voltage: 140 kA²s
- Melting I2t: 17 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: 73 mm
- Product Length: 74 mm
- Product Height: 78.5 mm
- Sell Pack Quantity: 1 EA
- Sell Pack Weight: 1.22 kg
- Sell Pack Width: 110 mm
- Sell Pack Length: 125 mm
- Sell Pack Height: 75 mm
- Product group: Semiconductor Protection Fuses
- Body/Insulating Material: Ceramic
- Product Weight: 1.22 kg
- Power Dissipation at Rated Current Value: 86 W
Frequently Asked Questions
What does the aR speed/characteristic mean for this fuse?
The aR (partial range) characteristic indicates that the fuse is designed for semiconductor protection, providing rapid interruption of short-circuit currents while allowing low overload currents to pass without nuisance tripping.
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?
The striker indication system provides a visual signal by releasing a striker mechanism when the fuse has blown, allowing for quick identification of a faulted fuse without disassembly.
What mounting options are available for this fuse?
This fuse is designed for bolted mounting with flush ends and metric threads to ensure a secure and reliable connection.
Common Search Terms
high-speed fuse, semiconductor protection fuse, aR fuse, 350A fuse, 1250VAC fuse, 1300VAC fuse, Size 73 fuse, Protistor fuse, industrial fuse, flush end fuse, metric thread fuse, bolted mounting fuse
| Manufacturer Part Number | K300504 |
|---|---|
| Packed Quantity | 1 |
| Barcode | 3605340329445 |
| Height | 74mm |
| Width | 73mm |
| Depth | 78.5mm |
| HS Code | 85351000 |
| Manufacturer | Mersen |
| Alternative Product SKU | PC73UD13C350TF |
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