MERSEN FUSE 5 URD 33 TT F 2250 5URD33TTF2250

Why Choose the Square Body High-Speed Fuse Protistor® Size 33 aR 500VAC IEC 550VAC UL 2250A With Striker Flush Ends Metric Threads PC33UD50V2250TF?

This Protistor® high-speed fuse is engineered for critical industrial protection, offering rapid response to overcurrent events in demanding AC circuits up to 500VAC (IEC) and 550VAC (UL). Designed for robust operation, it delivers a high interrupting rating of 2250A, ensuring the safety and reliability of semiconductor devices and power conversion equipment.

The square body construction and flush striker ends with metric threads provide secure and straightforward installation, minimising downtime and maintenance. Fully compliant with IEC and UL standards, this fuse is an optimal choice for applications requiring precise performance and consistent protection in high-power environments.

Product Code: K300757

Key Benefits

• High interrupting rating of 2250A ensures reliable protection for sensitive semiconductor devices.
• Square body design with flush striker ends and metric threads allows for secure and easy installation.
• Complies with both IEC and UL standards for versatile international use.
• Silver-plated brass terminals provide excellent conductivity and corrosion resistance.
• Indication system with striker type offers clear visual status of fuse operation.
• Ceramic insulating body ensures durability and high thermal resistance.

Compatibility

This fuse is compatible with industrial equipment requiring high-speed aR type fuses sized 33, operating within AC voltage ratings of up to 500VAC (IEC) and 550VAC (UL). It is suitable for bolted mounting fuse holders designed for metric thread connections and is ideal for semiconductor protection applications.

Applications

• Protection of power semiconductors such as thyristors and diodes.
• Industrial motor drives and power converters.
• High-power AC circuits requiring fast-acting overcurrent protection.
• Renewable energy systems including solar inverters.
• Heavy machinery and manufacturing equipment.

Technical Specifications

• Item number: K300757
• Catalogue No: PC33UD50V2250TF
• Description: Square Body High-Speed Fuse Protistor® Size 33 aR 500VAC IEC 550VAC UL 2250A With Striker Flush ends metric threads
• EAN/UPC Code: 3605340333077
• Rated voltage AC UL: 550 V
• Rated voltage AC IEC: 500 V
• Ampere Rating: 2250 A
• RoHS Compliant: Yes
• AC or DC: AC
• Speed/Characteristic: aR
• Fuse Size: 33
• Mounting: Bolted
• Clearing I2t At Rated Voltage: 5160 kA²s
• Melting I2t: 1250 kA²s
• AC Max I.R./Breaking Capacity: I1: 200 kA
• Design Details: Reinforced Terminal
• Indication System: Yes
• Indication System Type: Striker
• Connection/Terminal Material: Silver-Plated Brass
• Connection/Terminal Type: Flush ends
• Product Width: 73 mm
• Product Length: 50.6 mm
• Product Height: 78.5 mm
• Sell Pack Quantity: 3 EA
• Sell Pack Weight: 2.4168 kg
• Sell Pack Width: 85 mm
• Sell Pack Length: 245 mm
• Sell Pack Height: 95 mm
• Product group: Semiconductor Protection Fuses
• Body/Insulating Material: Ceramic
• Product Weight: 0.8056 kg
• Power Dissipation at Rated Current Value: 280 W

Common Search Terms

High-speed fuse size 33, Protistor fuse 2250A, semiconductor protection fuse, aR fuse 500VAC, 550VAC fuse UL rated, flush end fuse with striker, metric thread fuse, industrial AC fuse, bolted mounting fuse, ceramic body fuse.