MERSEN FUSE A 070 URD 31 TTI 0500 A070URD31TTI0500

Why Choose the Square Body High-Speed Fuse Protistor® Size 31 aR 690VAC IEC 700VAC UL 500A With Striker Flush ends UNC threads A070UD31TTI500?

Engineered for demanding industrial environments, this Protistor® high-speed fuse delivers rapid, reliable protection for sensitive power semiconductor devices, ensuring minimal energy let-through and enhanced system safety. Its square body design and striker feature provide precise operation and easy indication of fuse status, reducing downtime and maintenance delays.

Rated up to 690VAC (IEC) and 700VAC (UL), this 500A fuse with flush ends and UNC threads offers excellent mechanical stability and straightforward integration into panel assemblies. Perfectly suited for applications such as drives, UPS systems, and DC protection, it meets stringent IEC and UL standards for assured performance and operational confidence.

Product Code: G300478

Key Benefits

• High-speed aR characteristic ensures rapid disconnection to protect sensitive semiconductor devices.
• Striker indication system provides clear, immediate visual status of fuse operation.
• Robust ceramic body offers excellent mechanical strength and thermal stability.
• Flush ends with UNC threads facilitate secure and reliable mounting.
• Compliant with IEC and UL standards for versatile international use.
• High breaking capacity of 200 kA ensures safe interruption under fault conditions.

Compatibility

This fuse is compatible with a wide range of industrial equipment requiring semiconductor protection, including motor drives, uninterruptible power supplies (UPS), and DC power systems. Its bolted mounting and standard size 31 dimensions allow integration into existing fuse holders and panel assemblies designed for high-speed fuses.

Applications

• Protection of power semiconductor devices in industrial drives.
• UPS systems requiring rapid fault clearance.
• DC circuit protection in power electronics.
• General semiconductor protection in heavy industrial environments.

Technical Specifications

• Item number: G300478
• Catalogue No: A070UD31TTI500
• Description: Square Body High-Speed Fuse Protistor® Size 31 aR 690VAC IEC 700VAC UL 500A With Striker Flush ends UNC threads
• EAN/UPC Code: 3605340329070
• Rated voltage AC UL: 700 V
• Rated voltage AC IEC: 690 V
• Ampere Rating: 500 A
• RoHS Compliant: Yes
• AC or DC: AC
• Speed/Characteristic: aR
• Fuse Size: 31
• Mounting: Bolted
• Clearing I2t At Rated Voltage: 215000 A²s
• Melting I2t: 37000 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: 70 W

Common Search Terms

High-speed fuse, Protistor fuse, semiconductor protection fuse, size 31 fuse, 500A fuse, 690VAC fuse, 700VAC fuse, aR fuse, striker fuse, bolted fuse, industrial fuse, ceramic body fuse, flush end fuse.