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MERSEN FUSE 11 URD 71 D11 A 0550 11URD71D11A0550
MPN: M300552
Alt. SKU: PC71UD11C550D1A
Special Price
£104.51
£87.09
Regular Price
£190.01
MERSEN FUSE 11 URD 71 D11 A 0550 11URD71D11A0550 is available to buy in increments of 3
Why Choose the Square Body High-Speed Fuse Protistor® Size 71 aR 1100VAC IEC 1200VAC UL 550A With Striker DIN 110 Blades PC71UD11C550D1A?
Engineered for fast and reliable protection of semiconductor devices, the PC71UD11C550D1A fuse offers exceptional interrupting performance at 1100VAC (IEC) and 1200VAC (UL), with a robust 550A current rating. Its square body design, integrated striker, and DIN 110 blades ensure secure installation and compatibility with demanding industrial power systems.
This Protistor® fuse provides trusted protection against overload and short-circuit conditions, meeting IEC and UL standards for high-speed operation. Ideal for drives, inverters, and power conversion equipment requiring rapid fault clearance to maximise equipment uptime and system safety.
Technical Specifications
- Item number: M300552
- Catalogue No: PC71UD11C550D1A
- Description: Square Body High-Speed Fuse Protistor® Size 71 aR 1100VAC IEC 1200VAC UL 550A With Striker DIN 110 Blades
- EAN/UPC Code: 3605340330106
- Rated voltage AC UL: 1200 V
- Rated voltage AC IEC: 1100 V
- Ampere Rating: 550 A
- AC or DC: AC
- Speed/Characteristic: aR
- Fuse Size: 71
- Mounting: Bolted
- Clearing I2t At Rated Voltage: 548 kA²s
- Melting I2t: 84 kA²s
- AC Max I.R./Breaking Capacity: I1: 150 kA
- Indication System: Yes
- Indication System Type: Striker
- Connection/Terminal Material: Silver-Plated Copper
- Connection/Terminal Type: DIN 110 Blades
- Product Width: 51 mm
- Product Length: 133.4 mm
- Product Height: 56.5 mm
- Sell Pack Quantity: 3 EA
- Sell Pack Weight: 1.56 kg
- Sell Pack Width: 142 mm
- Sell Pack Length: 166 mm
- Sell Pack Height: 62 mm
- Product group: Semiconductor Protection Fuses
- Body/Insulating Material: Ceramic
- Product Weight: 0.52 kg
- Power Dissipation at Rated Current Value: 112 W
Product Code: M300552
Key Benefits
- High-speed aR characteristic ensures rapid fault clearance to protect sensitive semiconductor devices.
- Dual voltage rating suitable for both IEC (1100VAC) and UL (1200VAC) applications.
- Robust 550A current rating supports high power industrial equipment.
- Integrated striker indication system provides clear visual status of fuse operation.
- Durable ceramic body and silver-plated copper terminals ensure long-lasting performance and reliability.
- DIN 110 blade terminals facilitate secure and easy bolted mounting in industrial fuse holders.
Compatibility
This fuse is compatible with industrial semiconductor protection fuse holders designed for Size 71 fuses with DIN 110 blade terminals. It is ideal for use in variable frequency drives, power inverters, rectifiers, and other power electronic equipment requiring high-speed protection at voltages up to 1200VAC.
Applications
- Protection of power semiconductors in industrial drives and inverters.
- Power conversion and UPS systems.
- Short-circuit and overload protection in motor control centres.
- Renewable energy systems such as solar inverters and wind turbine converters.
- General industrial power electronics requiring high-speed fuse protection.
Frequently Asked Questions
What does the aR characteristic mean for this fuse?
The aR (partial range) characteristic means the fuse is designed to protect semiconductor devices by interrupting short-circuit currents quickly, but it does not provide full-range overload protection. It is suitable for protecting power semiconductors against short circuits.
Can this fuse be used in DC circuits?
No, this specific fuse is rated for AC applications only, as indicated by the AC or DC specification. For DC applications, a fuse rated specifically for DC use should be selected.
What is the significance of the striker indication system?
The striker indication system provides a mechanical indication that the fuse has operated (blown), enabling quick visual identification without needing to remove the fuse from the holder.
Is this fuse compliant with international standards?
Yes, the fuse meets IEC and UL standards for high-speed semiconductor protection fuses, ensuring reliable and safe operation in industrial environments.
Common Search Terms
high-speed fuse, semiconductor protection fuse, Protistor fuse, Size 71 fuse, 550A fuse, 1100VAC fuse, 1200VAC fuse, aR fuse, DIN blade fuse, striker indication fuse, industrial power fuse, inverter fuse, drive protection fuse
| Manufacturer Part Number | M300552 |
|---|---|
| Packed Quantity | 3 |
| Barcode | 3605340330106 |
| Height | 133.4mm |
| Width | 51mm |
| Depth | 56.5mm |
| HS Code | 85351000 |
| Manufacturer | Mersen |
| Alternative Product SKU | PC71UD11C550D1A |
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