MERSEN FUSE A 070 URD 31 LI 0450 A070URD31LI0450

Why Choose the Square Body High-Speed Fuse Protistor® Size 31 aR 690VAC IEC 700VAC UL 450A With Striker Slotted Blades long A070UD31LI450?

This high-speed fuse offers reliable circuit protection for demanding industrial and power electronics applications, with a 450A rating, aR characteristic, and robust square body design. It supports up to 690VAC (IEC) and 700VAC (UL) operation, ensuring safe, rapid interruption of fault currents in sensitive equipment.

Equipped with a striker for remote indication and slotted long blades for secure, efficient installation, the Protistor® A070UD31LI450 is optimised for both safety and ease of maintenance in critical environments. Choose this fuse for proven performance, compliance with IEC and UL standards, and enhanced operational reliability.

Product Code: A300702

Key Benefits

• High-speed aR characteristic ensures rapid fault clearance, protecting sensitive semiconductor devices.
• Robust ceramic square body construction for enhanced durability and thermal stability.
• Rated for up to 700 V AC (UL) and 690 V AC (IEC), suitable for a wide range of industrial applications.
• Striker indication system provides clear visual and remote fault indication for maintenance efficiency.
• Silver-plated copper slotted blade terminals facilitate secure and reliable electrical connections.
• Compliance with IEC and UL standards guarantees safety and quality assurance.

Compatibility

This fuse is compatible with Size 31 fuse holders and switchgear designed for high-speed semiconductor protection. It fits bolted mounting systems and integrates seamlessly with industrial control panels and power electronics requiring aR characteristic fuses for sensitive device protection.

Applications

• Protection of power semiconductor devices such as thyristors and diodes.
• Industrial motor drives and variable speed drives.
• Power supply units and inverters.
• Renewable energy systems including solar and wind power converters.
• High-speed circuit protection in automation and control systems.

Technical Specifications

• Item number: A300702
• Catalogue No: A070UD31LI450
• Description: Square Body High-Speed Fuse Protistor® Size 31 aR 690VAC IEC 700VAC UL 450A With Striker Slotted Blades long
• EAN/UPC Code: 3605340332445
• Rated voltage AC UL: 700 V
• Rated voltage AC IEC: 690 V
• Ampere Rating: 450 A
• RoHS Compliant: Yes
• AC or DC: AC
• Speed/Characteristic: aR
• Fuse Size: 31
• Mounting: Bolted
• Clearing I2t At Rated Voltage: 155000 A²s
• Melting I2t: 26500 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: 70 W

Common Search Terms

High-speed fuse, Protistor fuse, semiconductor protection fuse, aR fuse, 450A fuse, 690VAC fuse, 700VAC fuse, striker fuse, slotted blade fuse, Size 31 fuse, ceramic body fuse, bolted mount fuse, industrial fuse, power electronics fuse.