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MERSEN FUSE A 070 URD 31 TTI 0250 A070URD31TTI0250
MPN: B300473
Alt. SKU: A070UD31TTI250
Special Price
£68.11
£56.76
Regular Price
£123.84
MERSEN FUSE A 070 URD 31 TTI 0250 A070URD31TTI0250 is available to buy in increments of 3
Why Choose the Square Body High-Speed Fuse Protistor® Size 31 aR 690VAC IEC 700VAC UL 250A With Striker Flush ends UNC threads A070UD31TTI250?
This high-speed Protistor® fuse delivers rapid, reliable protection for demanding industrial and power electronics applications, supporting up to 250A at 690VAC IEC and 700VAC UL ratings. Engineered in a robust square body Size 31, it ensures optimal short-circuit protection for semiconductors, converters, and inverters.
The integrated striker function allows for remote indication, facilitating maintenance and operational safety. Flush ends with UNC threads guarantee secure and versatile installation, making it ideal for critical environments requiring high performance and durability.
Product Code: B300473
Key Benefits
- High-speed aR characteristic ensures rapid disconnection of semiconductor faults
- Supports high voltage ratings (690VAC IEC, 700VAC UL) for versatile industrial use
- Integrated striker indication system for easy remote fault detection
- Flush ends with UNC threads provide secure and flexible mounting options
- Robust ceramic body offers excellent durability and insulation
- Silver-plated brass terminals ensure reliable electrical connections
Compatibility
This fuse is compatible with Size 31 fuse holders and switchgear designed for semiconductor protection in industrial power electronics systems. It is suitable for use in converters, inverters, motor drives, and other equipment requiring high-speed fuse protection up to 250A and 700V AC.
Applications
- Protection of semiconductors in industrial power electronics
- Converters and inverters in automation and manufacturing plants
- Motor drives and variable speed drives
- Power supply units and UPS systems
- Renewable energy systems such as solar inverters
- General industrial electrical protection requiring high breaking capacity
Technical Specifications
- Item number: B300473
- Catalogue No: A070UD31TTI250
- Description: Square Body High-Speed Fuse Protistor® Size 31 aR 690VAC IEC 700VAC UL 250A With Striker Flush ends UNC threads
- EAN/UPC Code: 3605340329025
- Rated voltage AC UL: 700 V
- Rated voltage AC IEC: 690 V
- Ampere Rating: 250 A
- RoHS Compliant: Yes
- AC or DC: AC
- Speed/Characteristic: aR
- Fuse Size: 31
- Mounting: Bolted
- Clearing I2t At Rated Voltage: 28000 A²s
- Melting I2t: 4700 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: 52 W
Frequently Asked Questions
What does the aR speed characteristic mean?
The aR characteristic indicates a high-speed fuse designed specifically for semiconductor protection, allowing rapid disconnection to prevent damage to sensitive components.
Can this fuse be used in DC applications?
No, this fuse is rated for AC applications only, as indicated in the technical specifications.
What is the purpose of the striker indication system?
The striker system provides a mechanical indication of fuse operation, enabling remote monitoring of fuse status for easier maintenance and safety.
Are the flush ends compatible with standard fuse holders?
Yes, the flush ends with UNC threads are designed to fit standard Size 31 fuse holders that accept bolted connections.
Common Search Terms
high-speed fuse, Protistor fuse, Size 31 fuse, semiconductor protection fuse, 250A fuse, 690VAC fuse, 700VAC fuse, aR fuse, striker fuse, flush end fuse, industrial fuse, bolted fuse, ceramic body fuse
| Manufacturer Part Number | B300473 |
|---|---|
| Packed Quantity | 3 |
| Barcode | 3605340329025 |
| Height | 50.6mm |
| Width | 51mm |
| Depth | 56.5mm |
| HS Code | 85361090 |
| Country of Manufacture | France |
| Manufacturer | Mersen |
| Alternative Product SKU | A070UD31TTI250 |
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