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MERSEN FUSE A 070 URD 31 KI 0400 A070URD31KI0400
MPN: W300031
Alt. SKU: A070UD31KI400
Special Price
£89.68
£74.73
Regular Price
£163.04
MERSEN FUSE A 070 URD 31 KI 0400 A070URD31KI0400 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 Slotted Blades?
Engineered for demanding industrial applications, this Protistor® high-speed fuse delivers rapid circuit protection for sensitive power electronics at voltages up to 690VAC (IEC) and 700VAC (UL), supporting up to 400A. Its size 31 square body ensures easy integration and reliable performance within compact assemblies.
The integrated striker with slotted blades offers enhanced interface options for remote fuse status indication, facilitating maintenance and minimising downtime. Certified to IEC and UL standards, it is an ideal solution for safeguarding semiconductor devices and critical power systems.
Technical Specifications
- Item number: W300031
- Catalogue No: A070UD31KI400
- Description: Square Body High-Speed Fuse Protistor® Size 31 aR 690VAC IEC 700VAC UL 400A With Striker Slotted Blades short
- EAN/UPC Code: 3605340322552
- 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 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: 68 W
Product Code: W300031
Key Benefits
- Rapid and reliable protection for sensitive semiconductor devices.
- High breaking capacity of 200 kA ensures safety under fault conditions.
- Integrated striker with slotted blades for easy remote status indication.
- Compact size 31 square body for efficient space utilisation.
- Compliance with IEC and UL standards guarantees quality and safety.
- Silver-plated copper terminals provide excellent conductivity and corrosion resistance.
Compatibility
This fuse is compatible with industrial power electronics and semiconductor protection systems requiring a high-speed aR characteristic fuse with a 400A rating. It is suitable for use in bolted mounting fuse holders designed for size 31 fuses and integrates seamlessly with remote indication systems using striker blades.
Applications
- Protection of power semiconductors in industrial drives and converters.
- Safeguarding critical components in power distribution and control panels.
- Use in high-speed switching circuits requiring fast fault clearing.
- Industrial automation systems requiring reliable fuse status indication.
Frequently Asked Questions
What does the aR characteristic mean?
The aR characteristic indicates a high-speed fuse designed to protect semiconductor devices by clearing short-circuit faults rapidly while allowing normal operational currents.
Can this fuse be used in DC circuits?
No, this fuse is specified for AC applications only, as indicated in the technical specifications.
How does the striker indication system work?
The striker mechanism provides a physical indication of fuse operation by activating a striker blade, which can be connected to remote signalling devices for status monitoring.
Is this fuse RoHS compliant?
Yes, the fuse complies with RoHS standards, ensuring it is free from hazardous substances.
Common Search Terms
high-speed fuse, Protistor fuse, size 31 fuse, semiconductor protection fuse, 400A fuse, 690VAC fuse, 700VAC fuse, aR characteristic fuse, striker indication fuse, industrial fuse, bolted mounting fuse
| Manufacturer Part Number | W300031 |
|---|---|
| Packed Quantity | 3 |
| Barcode | 3605340322552 |
| Height | 129mm |
| Width | 51mm |
| Depth | 56.5mm |
| HS Code | 85361090 |
| Country of Manufacture | France |
| Manufacturer | Mersen |
| Alternative Product SKU | A070UD31KI400 |
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