We use cookies to make your experience better. To comply with the new e-Privacy directive, we need to ask for your consent to set the cookies. Learn more.
MERSEN FUSE A 120 URD 71 TTI 0550 A120URD71TTI0550
MPN: L301034
Alt. SKU: A120UD71TTI550
Special Price
£101.62
£84.68
Regular Price
£184.76
MERSEN FUSE A 120 URD 71 TTI 0550 A120URD71TTI0550 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 Flush ends UNC threads A120UD71TTI550?
Engineered for advanced protection of power semiconductor devices, the Square Body High-Speed Fuse Protistor® ensures rapid and reliable interruption at 1100VAC (IEC) and 1200VAC (UL), supporting operational continuity in demanding industrial applications. With a robust 550A rating and precision striker mechanism, it provides dependable visual and remote indication of fuse operation.
Featuring flush ends and UNC threads for secure and straightforward installation, this fuse is compliant with IEC and UL standards, ensuring both safety and performance. Choose the Protistor® A120UD71TTI550 for high energy efficiency, minimal downtime, and optimal protection of critical equipment.
Product Code: L301034
Key Benefits
- High-speed interruption to protect sensitive semiconductor devices.
- Rated for 1100VAC (IEC) and 1200VAC (UL) ensuring broad compatibility.
- Robust 550A rating for demanding industrial applications.
- Striker indication system for clear visual and remote operation status.
- Flush ends with UNC threads for secure and easy installation.
- Ceramic body for excellent insulation and durability.
- Silver-plated brass terminals for reliable electrical connection.
Compatibility
This fuse is compatible with industrial equipment requiring semiconductor protection fuses sized 71 with aR characteristics. It meets IEC and UL standards, making it suitable for use in systems designed to operate at voltages up to 1100VAC (IEC) and 1200VAC (UL) with bolted mounting configurations.
Applications
- Protection of power semiconductors such as thyristors and diodes.
- Industrial motor drives and inverters.
- Power supply units and converters.
- Renewable energy systems including solar and wind power inverters.
- High-speed switching circuits in manufacturing plants.
Technical Specifications
- Item number: L301034
- Catalogue No: A120UD71TTI550
- Description: Square Body High-Speed Fuse Protistor® Size 71 aR 1100VAC IEC 1200VAC UL 550A With Striker Flush ends UNC threads
- EAN/UPC Code: 3605340335682
- 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 Brass
- Connection/Terminal Type: Flush ends
- Product Width: 51 mm
- Product Length: 74 mm
- Product Height: 56.5 mm
- Sell Pack Quantity: 3 EA
- Sell Pack Weight: 1.5 kg
- Sell Pack Width: 85 mm
- Sell Pack Length: 170 mm
- Sell Pack Height: 70 mm
- Product group: Semiconductor Protection Fuses
- Body/Insulating Material: Ceramic
- Product Weight: 0.5 kg
- Power Dissipation at Rated Current Value: 98 W
Frequently Asked Questions
What does the 'aR' characteristic mean for this fuse?
The 'aR' characteristic indicates that the fuse is a partial-range semiconductor fuse designed to protect power semiconductors by interrupting short-circuit currents rapidly while allowing normal inrush currents.
Is this fuse suitable for DC applications?
No, this fuse is rated for AC applications only, as specified in the technical specifications.
How does the striker indication system work?
The striker indication system provides a mechanical signal when the fuse operates, allowing for both visual confirmation and remote signalling of fuse status.
What mounting options are available for this fuse?
This fuse is designed for bolted mounting, ensuring a secure and stable installation.
Common Search Terms
Square Body High-Speed Fuse, Protistor Fuse Size 71, 550A Semiconductor Fuse, 1100VAC IEC Fuse, 1200VAC UL Fuse, aR Characteristic Fuse, Striker Indication Fuse, Flush End Fuse, UNC Thread Fuse, Bolted Mount Fuse, Ceramic Body Fuse, Industrial Semiconductor Protection
| Manufacturer Part Number | L301034 |
|---|---|
| Packed Quantity | 3 |
| Barcode | 3605340335682 |
| Height | 74mm |
| Width | 51mm |
| Depth | 56.5mm |
| HS Code | 85351000 |
| Manufacturer | Mersen |
| Alternative Product SKU | A120UD71TTI550 |
Write Your Own Review
