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MERSEN FUSE A 070 URD 31 TTI 0450 A070URD31TTI0450
MPN: F300477
Alt. SKU: A070UD31TTI450
Special Price
£88.18
£73.48
Regular Price
£160.32
MERSEN FUSE A 070 URD 31 TTI 0450 A070URD31TTI0450 is available to buy in increments of 3
Why Choose the Square Body High-Speed Fuse Protistor® Size 31 aR 690VAC IEC 700VAC UL 450A With Striker Flush ends UNC threads A070UD31TTI450?
Engineered for industrial reliability, this high-speed fuse offers exceptional protection for power electronics and semiconductor devices, with a breaking capacity tailored for demanding 690VAC (IEC) and 700VAC (UL) applications up to 450A. Its striker mechanism enables precise fault indication, streamlining maintenance and ensuring operational uptime.
The robust square body design, combined with flush ends and UNC threads, ensures secure installation and efficient thermal performance in compact assemblies. Certified to both IEC and UL standards, this fuse guarantees compliance and safety for mission-critical systems.
Technical Specifications
- Item number: F300477
- Catalogue No: A070UD31TTI450
- Description: Square Body High-Speed Fuse Protistor® Size 31 aR 690VAC IEC 700VAC UL 450A With Striker Flush ends UNC threads
- EAN/UPC Code: 3605340329063
- Rated voltage AC UL: 700 V
- Rated voltage AC IEC: 690 V
- Ampere Rating: 450 A
- RoHS Compliant: Yes
- AC or DC: AC
- Speed/Characteristic: aR
- Fuse Size: 31
- Mounting: Bolted
- Clearing I2t At Rated Voltage: 155000 A²s
- Melting I2t: 26500 A²s
- AC Max I.R./Breaking Capacity: I1: 200 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: 50.6 mm
- Product Height: 56.5 mm
- Sell Pack Quantity: 3 EA
- Sell Pack Weight: 1.155 kg
- Sell Pack Width: 85 mm
- Sell Pack Length: 168 mm
- Sell Pack Height: 65 mm
- Product group: Semiconductor Protection Fuses
- Body/Insulating Material: Ceramic
- Product Weight: 0.385 kg
- Power Dissipation at Rated Current Value: 70 W
Product Code: F300477
Key Benefits
- High breaking capacity up to 200 kA ensures superior protection for sensitive semiconductor devices.
- Striker indication system provides clear and immediate fault detection, reducing downtime.
- Robust ceramic body offers excellent thermal and mechanical durability.
- Flush end terminals with UNC threads enable secure and reliable bolted mounting.
- Certified to both IEC and UL standards for broad international compliance.
Compatibility
This fuse is compatible with industrial power electronics and semiconductor protection systems requiring a high-speed aR characteristic fuse rated at 450A and voltages up to 700VAC. It fits fuse holders and panels designed for size 31 fuses with bolted mounting and flush end terminals.
Applications
- Protection of power semiconductor devices such as thyristors and diodes.
- Industrial motor drives and inverters.
- Power supply units in automation and control systems.
- High-speed switching circuits requiring rapid fault clearance.
- Renewable energy systems including solar inverters and wind turbines.
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 clearing short-circuits rapidly to protect 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 significance of the striker indication system?
The striker provides a mechanical indication when the fuse has blown, allowing for quick identification and replacement without the need for electrical testing.
Is this fuse RoHS compliant?
Yes, this fuse is RoHS compliant, ensuring it meets environmental and safety standards.
Common Search Terms
high-speed fuse, semiconductor protection fuse, aR fuse, 450A fuse, 700VAC fuse, striker fuse, size 31 fuse, bolted fuse, ceramic body fuse, industrial fuse, power electronics protection
| Manufacturer Part Number | F300477 |
|---|---|
| Packed Quantity | 3 |
| Barcode | 3605340329063 |
| Height | 50.6mm |
| Width | 51mm |
| Depth | 56.5mm |
| HS Code | 85361090 |
| Country of Manufacture | France |
| Manufacturer | Mersen |
| Alternative Product SKU | A070UD31TTI450 |
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