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MERSEN FUSE 12,5 URD 73 TT F 0450 12,5URD73TTF0450
MPN: M300506
Alt. SKU: PC73UD13C450TF
Special Price
£122.10
£101.75
Regular Price
£222.00
Why Choose the Square Body High-Speed Fuse Protistor® Size 73 aR 1250VAC IEC 1300VAC UL 450A With Striker Flush ends metric threads PC73UD13C450TF?
Engineered for demanding industrial and power electronics applications, this high-speed Protistor® fuse delivers rapid and reliable circuit protection up to 450A at 1250VAC (IEC) and 1300VAC (UL). Its robust square body design and striker with flush metric-threaded ends enable straightforward panel integration and remote fuse status indication.
Tested to international IEC and UL standards, the PC73UD13C450TF ensures low watt loss, fast response to overcurrents, and safe interruption, optimising equipment uptime and safeguarding critical components.
Technical Specifications
- Item number: M300506
- Catalogue No: PC73UD13C450TF
- Description: Square Body High-Speed Fuse Protistor® Size 73 aR 1250VAC IEC 1300VAC UL 450A With Striker Flush ends metric threads
- EAN/UPC Code: 3605340329483
- 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: 73
- Mounting: Bolted
- Clearing I2t At Rated Voltage: 290 kA²s
- Melting I2t: 35.5 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: 99 W
Product Code: M300506
Key Benefits
- High-speed aR characteristic ensures rapid disconnection of semiconductor circuits.
- Robust ceramic square body for enhanced durability and heat resistance.
- Striker indication system provides clear visual status of fuse operation.
- Flush ends with metric threads simplify installation and secure mounting.
- Compliance with IEC and UL standards guarantees reliable performance worldwide.
- Low power dissipation minimises energy loss and heat generation.
Compatibility
This fuse is compatible with industrial and power electronics equipment requiring bolted mounting fuses of size 73 with a rated current of 450A. It is suitable for use in systems designed to IEC and UL standards, particularly where high-speed semiconductor protection is necessary.
Applications
- Protection of power semiconductor devices such as thyristors and diodes.
- Industrial motor drives and inverters.
- Power supply units in heavy industry and manufacturing plants.
- Renewable energy systems including solar and wind power inverters.
- Uninterruptible power supplies (UPS) and battery systems.
Frequently Asked Questions
What does the 'aR' speed/characteristic mean?
The 'aR' designation indicates a high-speed fuse designed specifically for semiconductor protection, capable of interrupting high fault currents quickly to protect sensitive components.
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 system provides a mechanical indication by releasing a striker when the fuse operates, allowing for quick visual identification of blown fuses without disassembly.
Is the fuse suitable for panel mounting?
Yes, the fuse features flush ends with metric threads designed for bolted mounting, making it suitable for secure panel integration.
Common Search Terms
high-speed fuse, semiconductor protection fuse, size 73 fuse, aR fuse, 450A fuse, 1250VAC fuse, 1300VAC fuse, Protistor fuse, bolted fuse, striker indication fuse, ceramic body fuse
| Manufacturer Part Number | M300506 |
|---|---|
| Packed Quantity | 1 |
| Barcode | 3605340329483 |
| Height | 74mm |
| Width | 73mm |
| Depth | 78.5mm |
| HS Code | 85351000 |
| Manufacturer | Mersen |
| Alternative Product SKU | PC73UD13C450TF |
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