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MERSEN FUSE A 070 URD 31 LI 0630 A070URD31LI0630
MPN: D300705
Alt. SKU: A070UD31LI630
Special Price
£116.40
£97.00
Regular Price
£211.64
MERSEN FUSE A 070 URD 31 LI 0630 A070URD31LI0630 is available to buy in increments of 3
Why Choose the Square Body High-Speed Fuse Protistor® Size 31 aR 690VAC IEC 700VAC UL 630A With Striker Slotted Blades long A070UD31LI630?
Engineered for demanding industrial applications, this high-speed fuse delivers reliable protection for power semiconductors with a 630A rating and voltage compatibility up to 690VAC (IEC) and 700VAC (UL). Its size 31 square body and aR utilisation category ensure fast operation and reduced energy let-through under fault conditions.
The integrated striker enables reliable fuse status indication and facilitates remote signalling, while slotted long blades offer secure, efficient installation in tight enclosures. Rigorously tested to IEC and UL standards, it is the trusted choice for safeguarding critical power electronic systems.
Product Code: D300705
Key Benefits
- High-speed aR characteristic for rapid fault clearance, protecting sensitive semiconductor devices.
- Rated for both IEC (690VAC) and UL (700VAC) standards, ensuring broad compatibility.
- Integrated striker indication system provides clear fuse status and supports remote signalling.
- Slotted silver-plated copper blades enable secure and reliable bolted mounting.
- Ceramic body construction offers excellent insulation and thermal stability.
- High breaking capacity of 200 kA for enhanced safety in industrial environments.
Compatibility
This fuse is compatible with industrial power semiconductor protection systems requiring size 31 aR fuses with bolted mounting. It fits fuse holders and switchgear designed for slotted blade terminals and supports IEC and UL rated voltages up to 690VAC and 700VAC respectively.
Applications
- Protection of power semiconductors such as thyristors and diodes in industrial drives.
- High-speed fault clearance in power electronics and inverter circuits.
- Use in motor control centres and switchgear requiring reliable semiconductor protection.
- Industrial automation systems requiring fast-acting fuse protection.
Technical Specifications
- Item number: D300705
- Catalogue No: A070UD31LI630
- Description: Square Body High-Speed Fuse Protistor® Size 31 aR 690VAC IEC 700VAC UL 630A With Striker Slotted Blades long
- EAN/UPC Code: 3605340332476
- Rated voltage AC UL: 700 V
- Rated voltage AC IEC: 690 V
- Ampere Rating: 630 A
- RoHS Compliant: Yes
- AC or DC: AC
- Speed/Characteristic: aR
- Fuse Size: 31
- Mounting: Bolted
- Clearing I2t At Rated Voltage: 430000 A²s
- Melting I2t: 75000 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: 148.6 mm
- Product Height: 56.5 mm
- Sell Pack Quantity: 3 EA
- Sell Pack Weight: 1.2519 kg
- Sell Pack Width: 155 mm
- Sell Pack Length: 165 mm
- Sell Pack Height: 60 mm
- Product group: Semiconductor Protection Fuses
- Body/Insulating Material: Ceramic
- Product Weight: 0.4173 kg
- Power Dissipation at Rated Current Value: 85 W
Frequently Asked Questions
What does the aR characteristic mean?
The aR characteristic indicates a high-speed fuse designed specifically for semiconductor protection, capable of clearing short-circuits quickly while allowing normal overload currents to pass without nuisance tripping.
Is this fuse suitable for 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 signal when the fuse has blown, allowing visual confirmation and enabling remote signalling for maintenance purposes.
Can this fuse be used in motor control centres?
Yes, it is suitable for use in motor control centres and other industrial equipment requiring fast-acting semiconductor protection.
Common Search Terms
high-speed fuse, semiconductor protection fuse, aR fuse, size 31 fuse, 630A fuse, 690VAC fuse, 700VAC fuse, striker fuse, slotted blade fuse, Protistor fuse, industrial fuse, bolted mounting fuse
| Manufacturer Part Number | D300705 |
|---|---|
| Packed Quantity | 3 |
| Barcode | 3605340332476 |
| Height | 148.6mm |
| Width | 51mm |
| Depth | 56.5mm |
| HS Code | 85361090 |
| Country of Manufacture | France |
| Manufacturer | Mersen |
| Alternative Product SKU | A070UD31LI630 |
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