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MERSEN FUSE 11 URD 73 EF 0800 PC73UD11C800EF
MPN: D300636
Alt. SKU: PC73UD11C800EF
Special Price
£175.37
£146.14
Regular Price
£318.84
Why Choose the Square Body High-Speed Fuse Protistor® Size 73 aR 1100VAC IEC 1200VAC UL 800A With Striker Open Slot Blades PC73UD11C800EF?
Engineered for critical power and semiconductor protection, this high-speed Protistor® fuse delivers rapid arc quenching and reliable short-circuit safeguarding at ratings up to 1100VAC IEC, 1200VAC UL, and 800A. Its robust square body and open slot blade terminals with integral striker enable secure installation, visual blow indication, and compatibility with automated systems.
Fully compliant with both IEC and UL standards, the PC73UD11C800EF ensures optimal performance, reduced downtime, and extended equipment life in demanding industrial environments. Ideal for OEMs and maintenance teams prioritising safety and operational continuity.
Technical Specifications
- Item number: D300636
- Catalogue No: PC73UD11C800EF
- Description: Square Body High-Speed Fuse Protistor® Size 73 aR 1100VAC IEC 1200VAC UL 800A With Striker Open Slot Blades
- EAN/UPC Code: 3605340331394
- Rated voltage AC UL: 1200 V
- Rated voltage AC IEC: 1100 V
- Ampere Rating: 800 A
- AC or DC: AC
- Speed/Characteristic: aR
- Fuse Size: 73
- Mounting: Bolted
- Clearing I2t At Rated Voltage: 1230 kA²s
- Melting I2t: 190 kA²s
- AC Max I.R./Breaking Capacity: I1: 150 kA
- Indication System: Yes
- Indication System Type: Striker
- Connection/Terminal Material: Silver-Plated Copper
- Connection/Terminal Type: Open Slot Blades
- Product Width: 73 mm
- Product Length: 149.4 mm
- Product Height: 78.5 mm
- Sell Pack Quantity: 1 EA
- Sell Pack Weight: 1.11 kg
- Sell Pack Width: 110 mm
- Sell Pack Length: 180 mm
- Sell Pack Height: 80 mm
- Product group: Semiconductor Protection Fuses
- Body/Insulating Material: Ceramic
- Product Weight: 1.11 kg
- Power Dissipation at Rated Current Value: 148 W
Product Code: PC73UD11C800EF
Key Benefits
- High-speed aR characteristic ensures rapid short-circuit interruption for semiconductor protection.
- Dual compliance with IEC and UL standards guarantees versatile and reliable operation worldwide.
- Robust ceramic square body provides excellent durability and thermal stability.
- Striker indication system offers clear visual confirmation of fuse operation.
- Silver-plated copper open slot blade terminals enable secure, low-resistance connections.
- Bolted mounting facilitates easy installation and maintenance.
Compatibility
This fuse is compatible with industrial equipment requiring high-speed semiconductor protection at voltages up to 1100VAC IEC and 1200VAC UL, and currents up to 800A. It fits fuse holders and switchgear designed for Size 73 fuses with bolted mounting and open slot blade terminals.
Applications
- Protection of power semiconductors such as thyristors and diodes in industrial drives.
- Use in power conversion systems including inverters and rectifiers.
- Safeguarding critical industrial machinery from short-circuit damage.
- OEM applications requiring reliable high-speed fusing solutions.
- Maintenance and replacement in electrical distribution panels and control systems.
Frequently Asked Questions
What does the aR speed characteristic mean?
The aR (partial range) speed characteristic means the fuse is designed to protect semiconductor devices by interrupting short-circuits quickly while allowing certain overloads to pass without blowing, ensuring selective and reliable protection.
Can this fuse be used in DC applications?
No, this particular fuse is rated for AC applications only, as specified in the technical specifications.
How do I know if the fuse has operated?
The fuse features a striker indication system which provides a clear visual indication when the fuse has blown, allowing for quick identification and replacement.
Is this fuse compatible with UL and IEC standards?
Yes, the PC73UD11C800EF is fully compliant with both IEC and UL standards, making it suitable for use in regions adhering to either certification.
Common Search Terms
High-speed fuse, Protistor fuse, semiconductor protection fuse, Size 73 fuse, 800A fuse, 1100VAC fuse, 1200VAC fuse, aR fuse, striker indication fuse, ceramic body fuse, open slot blade fuse, bolted mounting fuse.
| Manufacturer Part Number | D300636 |
|---|---|
| Packed Quantity | 1 |
| Barcode | 3605340331394 |
| Height | 149.4mm |
| Width | 73mm |
| Depth | 78.5mm |
| HS Code | 85351000 |
| Manufacturer | Mersen |
| Alternative Product SKU | PC73UD11C800EF |
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