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MERSEN FUSE A 070 URD 31 KI 0250 A070URD31KI0250
MPN: T300029
Alt. SKU: A070UD31KI250
Special Price
£73.22
£61.02
Regular Price
£133.13
MERSEN FUSE A 070 URD 31 KI 0250 A070URD31KI0250 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 Slotted Blades short A070UD31KI250?
Engineered for precision and reliability, this high-speed Protistor® fuse delivers rapid circuit protection for sensitive power electronic equipment operating up to 690VAC IEC and 700VAC UL, with a robust 250A current rating. The short-body, size 31 square design with striker and slotted blade terminals ensures secure installation and quick fault indication, optimising downtime and maintenance efficiency.
Fully compliant with IEC and UL standards, this fuse offers exceptional short-circuit performance and arc containment, making it ideal for demanding industrial environments where reliable, high-speed protection is critical.
Technical Specifications
- Item number: T300029
- Catalogue No: A070UD31KI250
- Description: Square Body High-Speed Fuse Protistor® Size 31 aR 690VAC IEC 700VAC UL 250A With Striker Slotted Blades short
- EAN/UPC Code: 3605340322538
- 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 Copper
- Connection/Terminal Type: Slotted Blades
- Product Width: 51 mm
- Product Length: 129 mm
- Product Height: 56.5 mm
- Sell Pack Quantity: 3 EA
- Sell Pack Weight: 1.203 kg
- Sell Pack Width: 157 mm
- Sell Pack Length: 166 mm
- Sell Pack Height: 62 mm
- Product group: Semiconductor Protection Fuses
- Body/Insulating Material: Ceramic
- Product Weight: 0.401 kg
- Power Dissipation at Rated Current Value: 52 W
Product Code: T300029
Key Benefits
- High-speed aR characteristic ensures rapid fault clearing to protect sensitive equipment.
- Robust ceramic body provides excellent arc containment and mechanical strength.
- Striker indication system allows quick visual fault detection, minimising downtime.
- Silver-plated copper slotted blade terminals ensure secure and reliable electrical connections.
- Complies with IEC and UL standards for global application and safety assurance.
- Bolted mounting facilitates easy installation and replacement.
Compatibility
This fuse is compatible with industrial power electronic systems requiring high-speed protection up to 690VAC IEC and 700VAC UL. It is suitable for use in semiconductor protection circuits, motor drives, and other sensitive electrical equipment where fast interruption of fault currents is essential.
Applications
- Protection of semiconductor devices such as thyristors and diodes.
- Industrial motor drives and variable frequency drives.
- Power supply units and inverters.
- Renewable energy systems including solar inverters.
- Automation and control equipment requiring reliable high-speed fusing.
Frequently Asked Questions
What does the aR characteristic mean?
The aR characteristic indicates a high-speed fuse designed to protect semiconductor devices by rapidly clearing short-circuits while allowing for inrush currents during normal operation.
Can this fuse be used in 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 indication of fuse operation by ejecting a striker when the fuse blows, allowing for quick visual identification of a faulted fuse.
Is this fuse RoHS compliant?
Yes, this product is RoHS compliant, ensuring it meets environmental and safety standards.
Common Search Terms
high-speed fuse, Protistor fuse, semiconductor protection fuse, size 31 fuse, 250A fuse, 690VAC fuse, 700VAC fuse, aR fuse, striker fuse, slotted blade fuse, ceramic body fuse, industrial fuse, bolted mounting fuse
| Manufacturer Part Number | T300029 |
|---|---|
| Packed Quantity | 3 |
| Barcode | 3605340322538 |
| Height | 129mm |
| Width | 51mm |
| Depth | 56.5mm |
| HS Code | 85361090 |
| Country of Manufacture | France |
| Manufacturer | Mersen |
| Alternative Product SKU | A070UD31KI250 |
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