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MERSEN FUSE 12,5 URD 72 EF 0350 L300620
MPN: L300620
Alt. SKU: PC72UD13C350EF
Special Price
£129.78
£108.15
Regular Price
£235.97
MERSEN FUSE 12,5 URD 72 EF 0350 L300620 is available to buy in increments of 3
Why Choose the Square Body High-Speed Fuse Protistor® Size 72 aR 1250VAC IEC 1300VAC UL 350A With Striker Open Slot Blades PC72UD13C350EF?
Engineered for critical protection in power electronics, the Protistor® PC72UD13C350EF offers rapid response and reliable current interruption at 1250VAC IEC (1300VAC UL), safeguarding sensitive equipment from damaging overloads and short circuits. Its high breaking capacity and aR class performance make it ideal for demanding industrial applications.
The square body design with open slot blades and integral striker ensures secure fitment, clear fault indication, and easy replacement, enhancing safety and reducing downtime. Fully compliant with international standards, it is the dependable choice for high-performance circuit protection.
Technical Specifications
- Item number: L300620
- Catalogue No: PC72UD13C350EF
- Description: Square Body High-Speed Fuse Protistor® Size 72 aR 1250VAC IEC 1300VAC UL 350A With Striker Open Slot Blades
- EAN/UPC Code: 3605340331080
- Rated voltage AC UL: 1300 V
- Rated voltage AC IEC: 1250 V
- Ampere Rating: 350 A
- AC or DC: AC
- Speed/Characteristic: aR
- Fuse Size: 72
- Mounting: Bolted
- Clearing I2t At Rated Voltage: 170 kA²s
- Melting I2t: 21 kA²s
- AC Max I.R./Breaking Capacity: I1: 126 kA
- Indication System: Yes
- Indication System Type: Striker
- Connection/Terminal Material: Silver-Plated Copper
- Connection/Terminal Type: Open Slot Blades
- Product Width: 59 mm
- Product Length: 149.4 mm
- Product Height: 63 mm
- Sell Pack Quantity: 3 EA
- Sell Pack Weight: 2.274 kg
- Sell Pack Width: 157 mm
- Sell Pack Length: 205 mm
- Sell Pack Height: 80 mm
- Product group: Semiconductor Protection Fuses
- Body/Insulating Material: Ceramic
- Product Weight: 0.758 kg
- Power Dissipation at Rated Current Value: 77 W
Product Code: L300620
Key Benefits
- High breaking capacity ensures reliable protection against short circuits and overloads.
- Rapid response time minimises damage to sensitive power electronic components.
- Striker indication system provides clear and immediate fault signalling.
- Open slot blade terminals allow secure and easy installation with bolted mounting.
- Ceramic body offers excellent insulation and thermal stability.
- Complies with IEC and UL standards for international reliability and safety.
Compatibility
This fuse is compatible with power electronic systems requiring high-speed semiconductor protection, specifically designed for use with Size 72 fuse holders and bolted mounting arrangements. It suits industrial control panels, motor drives, and power converters operating at voltages up to 1300VAC.
Applications
- Protection of semiconductor devices such as IGBTs and thyristors in inverters and converters.
- Industrial motor control and drives.
- Power supply units and UPS systems.
- Renewable energy systems including solar inverters.
- Automation and process control equipment.
Frequently Asked Questions
What does the aR speed/characteristic mean?
The aR (partial range) characteristic indicates that the fuse is designed to protect semiconductor devices by interrupting overloads and short circuits quickly, but it does not provide full range protection for all types of faults.
Can this fuse be used in DC applications?
No, this fuse is rated for AC applications only, as specified in the technical specifications.
What is the significance of the striker indication system?
The striker provides a mechanical indication of fuse operation by physically moving to signal a blown fuse, allowing for quick visual inspection without disassembly.
Is this fuse compliant with international safety standards?
Yes, it meets IEC and UL standards for rated voltage and breaking capacity, ensuring reliable and safe operation worldwide.
Common Search Terms
High-speed fuse, Protistor fuse, Size 72 fuse, semiconductor protection fuse, aR fuse, 350A fuse, 1250VAC fuse, 1300VAC fuse, striker indication fuse, bolted mount fuse, ceramic fuse body, industrial fuse, power electronics protection.
| Manufacturer Part Number | L300620 |
|---|---|
| Packed Quantity | 3 |
| Barcode | 3605340331080 |
| Height | 149.4mm |
| Width | 59mm |
| Depth | 63mm |
| HS Code | 85351000 |
| Manufacturer | Mersen |
| Alternative Product SKU | PC72UD13C350EF |
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