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MERSEN FUSE 12,5 URD 72 TTF 0550 12,5URD72TTF550
MPN: E300499
Alt. SKU: PC72UD13C550TF
Special Price
£118.76
£98.97
Regular Price
£215.93
MERSEN FUSE 12,5 URD 72 TTF 0550 12,5URD72TTF550 is available to buy in increments of 3
Why Choose the Square Body High-Speed Fuse Protistor® Size 72 aR 1250VAC IEC 1300VAC UL 550A With Striker Flush ends metric threads PC72UD13C550TF?
The PC72UD13C550TF high-speed fuse is engineered for optimum protection of sensitive power semiconductor devices in demanding industrial environments. Rated for 1250VAC (IEC) and 1300VAC (UL) with a 550A current capacity, it ensures rapid fault interruption while minimising let-through energy and system downtime.
Featuring a robust square body design, integral striker for remote indication, and reliable metric-threaded flush end caps, this fuse is ideal for installation in critical, high-current circuits. Manufactured to stringent IEC and UL standards, it delivers superior performance, safety, and long-term durability.
Technical Specifications
- Item number: E300499
- Catalogue No: PC72UD13C550TF
- Description: Square Body High-Speed Fuse Protistor® Size 72 aR 1250VAC IEC 1300VAC UL 550A With Striker Flush ends metric threads
- EAN/UPC Code: 3605340329353
- Rated voltage AC UL: 1300 V
- Rated voltage AC IEC: 1250 V
- Ampere Rating: 550 A
- AC or DC: AC
- Speed/Characteristic: aR
- Fuse Size: 72
- Mounting: Bolted
- Clearing I2t At Rated Voltage: 550 kA²s
- Melting I2t: 68 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: 59 mm
- Product Length: 74 mm
- Product Height: 63 mm
- Sell Pack Quantity: 1 EA
- Sell Pack Weight: 0.8 kg
- Sell Pack Width: 110 mm
- Sell Pack Length: 130 mm
- Sell Pack Height: 80 mm
- Product group: Semiconductor Protection Fuses
- Body/Insulating Material: Ceramic
- Product Weight: 0.8 kg
- Power Dissipation at Rated Current Value: 110 W
Product Code: PC72UD13C550TF
Key Benefits
- High-speed interruption for sensitive power semiconductor protection
- Robust ceramic square body ensures durability and safety
- Integral striker for reliable remote indication of fuse operation
- Flush end silver-plated brass terminals with metric threads for secure bolted mounting
- Complies with IEC and UL standards for global application
- Minimises let-through energy to protect downstream equipment
Compatibility
This fuse is compatible with Size 72 fuse holders and assemblies designed for high-speed semiconductor protection. It is suitable for use in industrial power electronics, motor drives, and other applications requiring fast and reliable AC fault interruption up to 1300VAC.
Applications
- Protection of power semiconductor devices such as thyristors and diodes
- Industrial motor drives and inverters
- Power supplies and converters
- Renewable energy systems including solar and wind power inverters
- High-current AC circuits requiring rapid fault clearing
Frequently Asked Questions
What does the 'aR' speed characteristic mean?
The 'aR' (partial range) characteristic indicates that the fuse is designed for semiconductor protection with a high breaking capacity and fast interruption of overloads and short circuits.
Can this fuse be used in DC applications?
No, this fuse is rated for AC applications only, as specified in the technical specifications.
What type of indication system does this fuse have?
It features an integral striker indication system that provides remote signalling when the fuse has operated.
What are the dimensions of this fuse?
The fuse measures 74 mm in length, 59 mm in width, and 63 mm in height.
Common Search Terms
High-speed fuse, semiconductor protection fuse, Size 72 fuse, 550A fuse, 1250VAC fuse, 1300VAC fuse, aR fuse, Protistor fuse, fuse with striker, bolted fuse, ceramic fuse, industrial fuse, power electronics fuse
| Manufacturer Part Number | E300499 |
|---|---|
| Packed Quantity | 3 |
| Barcode | 3605340329353 |
| Height | 74mm |
| Width | 59mm |
| Depth | 63mm |
| HS Code | 85351000 |
| Manufacturer | Mersen |
| Alternative Product SKU | PC72UD13C550TF |
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