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MERSEN FUSE 12,5 URD 73 PA 0550 PC73UD13C550PA
MPN: Y302977
Alt. SKU: PC73UD13C550PA
Special Price
£159.66
£133.05
Regular Price
£290.28
MERSEN FUSE 12,5 URD 73 PA 0550 PC73UD13C550PA is available to buy in increments of 3
Why Choose the Square Body High-Speed Fuse Protistor® Size 73 aR 1250VAC IEC 1300VAC UL 550A With Striker Plain Blades PC73UD13C550PA?
Engineered for demanding industrial and power electronics applications, the PC73UD13C550PA delivers reliable protection for sensitive semiconductor devices. This high-speed fuse features robust aR utilisation category performance at 1250VAC (IEC) and 1300VAC (UL), supporting rapid and secure fault interruption.
With a 550A current rating, integrated striker for remote indication, and precision plain blade terminations, the Protistor® ensures superior circuit protection and minimal downtime. Its compact square-body size 73 format allows for ease of integration into new or existing installations.
Technical Specifications
- Item number: Y302977
- Catalogue No: PC73UD13C550PA
- Description: Square Body High-Speed Fuse Protistor® Size 73 aR 1250VAC IEC 1300VAC UL 550A With Striker Plain Blades
- EAN/UPC Code: 3605340379877
- 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: 73
- Mounting: Clip
- Clearing I2t At Rated Voltage: 465 kA²s
- Melting I2t: 57 kA²s
- AC Max I.R./Breaking Capacity: I1: 126 kA
- Indication System: Yes
- Indication System Type: Striker
- Connection/Terminal Material: Silver-Plated Copper
- Connection/Terminal Type: Plain Blades
- Product Width: 73 mm
- Product Length: 149.4 mm
- Product Height: 78.5 mm
- Sell Pack Quantity: 3 EA
- Sell Pack Weight: 3.48 kg
- Sell Pack Width: 160 mm
- Sell Pack Length: 245 mm
- Sell Pack Height: 100 mm
- Product group: Semiconductor Protection Fuses
- Body/Insulating Material: Ceramic
- Product Weight: 1.16 kg
- Power Dissipation at Rated Current Value: 120 W
Product Code: Y302977
Key Benefits
- High-speed aR fuse ensures rapid fault interruption for sensitive semiconductor protection.
- Rated for high voltages: 1250VAC (IEC) and 1300VAC (UL) for versatile industrial use.
- Integrated striker indication system for remote fault signalling and reduced downtime.
- Robust ceramic body provides excellent insulation and durability under demanding conditions.
- Silver-plated copper plain blade terminals ensure reliable electrical connections.
- Compact size 73 format facilitates easy integration and mounting via clip system.
Compatibility
This fuse is compatible with industrial and power electronics equipment requiring high-speed semiconductor protection up to 550A. It fits fuse holders and clips designed for size 73 fuses with plain blade terminals and is suitable for systems operating at IEC and UL rated voltages.
Applications
- Power semiconductor protection in industrial drives and converters.
- Protection of power electronics in renewable energy systems.
- High-speed circuit protection in motor control centres.
- Use in UPS and power supply units requiring rapid fault clearing.
- General industrial electrical protection where high breaking capacity is needed.
Frequently Asked Questions
What does the 'aR' speed/characteristic mean?
The 'aR' characteristic indicates a partial-range high-speed fuse designed specifically for semiconductor protection, allowing fast interruption of short-circuit faults to safeguard sensitive components.
Can this fuse be used in DC applications?
No, this fuse is rated for AC applications only, as specified in the technical specifications.
What is the purpose of the integrated striker?
The integrated striker provides a mechanical indication of fuse operation, enabling remote signalling to alert maintenance personnel of a blown fuse.
Is the fuse suitable for replacement in existing installations?
Yes, the size 73 format and plain blade terminals allow easy replacement in compatible fuse holders and clips.
Common Search Terms
high-speed fuse, semiconductor protection fuse, aR fuse, size 73 fuse, 550A fuse, 1250VAC fuse, 1300VAC fuse, Protistor fuse, industrial fuse, square body fuse, striker indicator fuse
| Manufacturer Part Number | Y302977 |
|---|---|
| Packed Quantity | 3 |
| Barcode | 3605340379877 |
| Height | 149.4mm |
| Width | 73mm |
| Depth | 78.5mm |
| HS Code | 85351000 |
| Manufacturer | Mersen |
| Alternative Product SKU | PC73UD13C550PA |
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