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MERSEN FUSE A 070 URD 31 TTI 0400 A070URD31TTI0400
MPN: E300476
Alt. SKU: A070UD31TTI400
Special Price
£82.10
£68.42
Regular Price
£149.28
MERSEN FUSE A 070 URD 31 TTI 0400 A070URD31TTI0400 is available to buy in increments of 3
Why Choose the Square Body High-Speed Fuse Protistor® Size 31 aR 690VAC IEC 700VAC UL 400A With Striker Flush Ends UNC Threads A070UD31TTI400?
Designed for high-performance industrial applications, this Protistor® high-speed fuse offers precise circuit protection for power electronics up to 690VAC (IEC) and 700VAC (UL), with a robust 400A current rating. The square body construction ensures efficient heat dissipation and enhanced mechanical strength for demanding operational environments.
Featuring striker flush ends with UNC threads for secure and reliable installation, the fuse delivers rapid response to fault conditions, minimising equipment downtime and safeguarding sensitive components. Certified to both IEC and UL standards, it is an ideal choice for ensuring maximum system safety and reliability.
Technical Specifications
- Item number: E300476
- Catalogue No: A070UD31TTI400
- Description: Square Body High-Speed Fuse Protistor® Size 31 aR 690VAC IEC 700VAC UL 400A With Striker Flush ends UNC threads
- EAN/UPC Code: 3605340329056
- Rated voltage AC UL: 700 V
- Rated voltage AC IEC: 690 V
- Ampere Rating: 400 A
- RoHS Compliant: Yes
- AC or DC: AC
- Speed/Characteristic: aR
- Fuse Size: 31
- Mounting: Bolted
- Clearing I2t At Rated Voltage: 110000 A²s
- Melting I2t: 19000 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: 68 W
Product Code: E300476
Key Benefits
- High-speed aR characteristic for rapid fault clearing and enhanced equipment protection.
- Square body design for improved heat dissipation and mechanical robustness.
- Striker indication system enables quick visual confirmation of fuse operation.
- Flush end terminals with UNC threads ensure secure and reliable bolted mounting.
- Certified to IEC and UL standards, guaranteeing compliance and safety.
- Silver-plated brass terminals provide excellent conductivity and corrosion resistance.
Compatibility
This fuse is compatible with Size 31 fuse holders and switchgear designed for high-speed semiconductor protection. It is suitable for use in industrial power electronics, motor drives, and inverter circuits requiring a 400A rating and AC voltage up to 700V UL or 690V IEC.
Applications
- Protection of power semiconductors in industrial drives and inverters.
- High-speed circuit protection in automation and control systems.
- Safeguarding transformers and capacitors in electrical distribution.
- Use in renewable energy systems such as solar inverters and wind turbines.
- General industrial machinery requiring reliable high-speed fuse protection.
Frequently Asked Questions
What does the 'aR' speed/characteristic mean?
The 'aR' characteristic indicates a high-speed fuse designed specifically for semiconductor protection, capable of interrupting high fault currents 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 system provides a visual indication when the fuse has operated, allowing for quick and safe identification of a blown fuse without disassembly.
Are the terminals compatible with standard fuse holders?
Yes, the fuse features flush ends with UNC threads designed for secure bolted mounting in standard Size 31 fuse holders.
Common Search Terms
high-speed fuse, Protistor fuse, Size 31 fuse, 400A fuse, semiconductor protection fuse, aR fuse, 690VAC fuse, 700VAC fuse, industrial fuse, striker indication fuse, bolted fuse, ceramic body fuse
| Manufacturer Part Number | E300476 |
|---|---|
| Packed Quantity | 3 |
| Barcode | 3605340329056 |
| Height | 50.6mm |
| Width | 51mm |
| Depth | 56.5mm |
| HS Code | 85361090 |
| Country of Manufacture | France |
| Manufacturer | Mersen |
| Alternative Product SKU | A070UD31TTI400 |
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