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MERSEN FUSE 12,5 URD 73 D11 A 0550 12,5URD73D11A0550
MPN: F300569
Alt. SKU: PC73UD13C550D1A
Special Price
£163.60
£136.33
Regular Price
£297.44
Why Choose the Square Body High-Speed Fuse Protistor® Size 73 aR 1250VAC IEC 1300VAC UL 550A With Striker DIN 110 Blades PC73UD13C550D1A?
The Protistor® PC73UD13C550D1A high-speed fuse delivers reliable protection for demanding industrial power electronics, supporting up to 1250VAC (IEC)/1300VAC (UL) at 550A. Its square body design and DIN 110 blade terminals enable straightforward integration into busbar and panel systems.
Engineered with an integrated striker for remote fuse status indication, this fuse ensures rapid fault clearing, minimising equipment downtime and supporting safe, efficient circuit operation in critical applications.
Product Code: F300569
Key Benefits
- High breaking capacity of 126 kA ensures robust protection against short circuits.
- Integrated striker provides remote indication of fuse status for quick fault detection.
- Silver-plated copper DIN 110 blade terminals facilitate secure and low-resistance connections.
- Ceramic body material offers excellent insulation and thermal stability.
- Compact square body design allows easy integration into existing panel and busbar systems.
Compatibility
This fuse is compatible with industrial power electronics systems requiring a high-speed fuse with a rated voltage up to 1250VAC (IEC) or 1300VAC (UL) and a current rating of 550A. It fits fuse holders and panels designed for Size 73 fuses with DIN 110 blade terminals.
Applications
- Protection of semiconductor devices in industrial power electronics.
- Use in motor drives and frequency converters.
- High-voltage busbar protection in manufacturing plants.
- Power supply circuits requiring rapid fault clearing.
- Renewable energy systems such as solar inverters and wind turbines.
Technical Specifications
- Item number: F300569
- Catalogue No: PC73UD13C550D1A
- Description: Square Body High-Speed Fuse Protistor® Size 73 aR 1250VAC IEC 1300VAC UL 550A With Striker DIN 110 Blades
- EAN/UPC Code: 3605340330427
- 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: Bolted
- 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: DIN 110 Blades
- Product Width: 73 mm
- Product Length: 133.4 mm
- Product Height: 78.5 mm
- Sell Pack Quantity: 3 EA
- Sell Pack Weight: 3.36 kg
- Sell Pack Width: 150 mm
- Sell Pack Length: 250 mm
- Sell Pack Height: 90 mm
- Product group: Semiconductor Protection Fuses
- Body/Insulating Material: Ceramic
- Product Weight: 1.12 kg
- Power Dissipation at Rated Current Value: 120 W
Frequently Asked Questions
What does the 'aR' characteristic mean for this fuse?
The 'aR' characteristic indicates a high-speed fuse designed specifically for semiconductor protection, capable of interrupting high short-circuit currents rapidly to protect sensitive components.
Can this fuse be used in DC circuits?
No, this particular fuse is rated for AC applications only, as specified in the technical specifications.
How does the integrated striker indication system work?
The striker mechanism activates upon fuse operation, providing a visible or remote electrical signal indicating the fuse has blown, allowing for quick identification and replacement.
What mounting options are available for this fuse?
This fuse is designed for bolted mounting, ensuring a secure and stable connection in industrial installations.
Common Search Terms
High-speed fuse, Protistor fuse, Size 73 fuse, 550A fuse, 1250VAC fuse, 1300VAC fuse, semiconductor protection fuse, aR fuse, DIN 110 blade fuse, industrial power fuse, ceramic body fuse, striker fuse indication.
| Manufacturer Part Number | F300569 |
|---|---|
| Packed Quantity | 1 |
| Barcode | 3605340330427 |
| Height | 133.4mm |
| Width | 73mm |
| Depth | 78.5mm |
| HS Code | 85351000 |
| Manufacturer | Mersen |
| Alternative Product SKU | PC73UD13C550D1A |
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