MERSEN FUSE 6,9 URD 31 EF 0315 6,9URD31EF0315

Why Choose the Square Body High-Speed Fuse Protistor® Size 31 aR 690VAC IEC 700VAC UL 315A With Striker Open Slot Blades PC31UD69V315EF?

Engineered for precision protection of power semiconductor devices, the Square Body High-Speed Fuse Protistor® Size 31 delivers rapid fault interruption at ratings up to 315A, supporting 690VAC (IEC) and 700VAC (UL) operation. Its robust design with open slot blades and integrated striker ensures reliable performance and efficient detection for system monitoring.

Compliant with international standards, this fuse offers superior thermal and electrical cycling endurance, maximising uptime in demanding industrial environments. Choose PC31UD69V315EF for enhanced safety, fast acting response, and dependable short-circuit protection in high-reliability applications.

Technical Specifications

• Item number: E300039
• Catalogue No: PC31UD69V315EF
• Description: Square Body High-Speed Fuse Protistor® Size 31 aR 690VAC IEC 700VAC UL 315A With Striker Open Slot Blades
• EAN/UPC Code: 3605340322637
• Rated voltage AC UL: 700 V
• Rated voltage AC IEC: 690 V
• Ampere Rating: 315 A
• RoHS Compliant: Yes
• AC or DC: AC
• Speed/Characteristic: aR
• Fuse Size: 31
• Mounting: Bolted
• Clearing I2t At Rated Voltage: 44000 A²s
• Melting I2t: 7500 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: Open Slot Blades
• Product Width: 51 mm
• Product Length: 109.4 mm
• Product Height: 56.5 mm
• Sell Pack Quantity: 3 EA
• Sell Pack Weight: 1.2129 kg
• Sell Pack Width: 143 mm
• Sell Pack Length: 175 mm
• Sell Pack Height: 73 mm
• Product group: Semiconductor Protection Fuses
• Body/Insulating Material: Ceramic
• Product Weight: 0.4043 kg
• Power Dissipation at Rated Current Value: 65 W

Product Code: PC31UD69V315EF

Key Benefits

• Fast-acting aR characteristic ensures rapid fault clearance to protect sensitive semiconductor devices.
• High breaking capacity of 200 kA for reliable interruption of high short-circuit currents.
• Robust ceramic body enhances durability and thermal endurance in demanding environments.
• Integrated striker indication system provides clear visual fault detection for quick maintenance.
• Silver-plated copper open slot blades ensure optimal electrical conductivity and secure mounting.
• Compliant with IEC and UL standards for versatile international application.

Compatibility

This fuse is compatible with Size 31 fuse holders designed for bolted mounting and open slot blade connections. It is suitable for use in industrial power semiconductor protection circuits operating on AC systems up to 690VAC (IEC) and 700VAC (UL). Ensure fuse holders and systems support the 315A rating and striker indication features for optimal performance.

Applications

• Protection of power semiconductor devices such as thyristors and diodes in industrial drives.
• Use in power electronics and converter circuits requiring fast short-circuit interruption.
• Industrial automation systems demanding high reliability and quick fault detection.
• Renewable energy systems including photovoltaic inverters and wind turbine converters.
• High-power motor control centres and variable frequency drives.

Common Search Terms

high-speed fuse, semiconductor protection fuse, size 31 fuse, aR fuse 315A, 690VAC fuse, 700VAC fuse, striker indication fuse, bolted mounting fuse, ceramic body fuse, power electronics protection