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MERSEN FUSE 12,5 URD 73 D11 A 0450 12,5URD73D11A0450
MPN: D300567
Alt. SKU: PC73UD13C450D1A
Special Price
£157.28
£131.07
Regular Price
£285.96
Why Choose the Square Body High-Speed Fuse Protistor® Size 73 aR 1250VAC IEC 1300VAC UL 450A With Striker DIN 110 Blades PC73UD13C450D1A?
Optimised for demanding industrial and power electronics applications, this high-speed fuse offers reliable protection for sensitive semiconductor devices. Supporting up to 1250VAC (IEC) and 1300VAC (UL) with a 450A rating, it ensures rapid interruption of fault currents to minimise equipment damage and downtime.
The robust square body design, integrated striker for remote signalling, and DIN 110 blade connections simplify installation and enhance operational safety. Certified to IEC and UL standards, the PC73UD13C450D1A fuse is a proven choice for critical protection in high-power electrical systems.
Product Code: D300567
Key Benefits
- High-speed aR characteristic ensures rapid fault clearance for semiconductor protection.
- Robust ceramic square body design for enhanced durability and reliability.
- Integrated striker indication system provides clear fault signalling.
- DIN 110 blade terminals enable straightforward and secure bolted mounting.
- Certified to IEC and UL standards for international compliance and safety.
- High breaking capacity of 126 kA at rated voltage for superior fault interruption.
Compatibility
This fuse is compatible with industrial and power electronic systems requiring high-speed semiconductor protection. It fits fuse holders and switchgear designed for Size 73 fuses with DIN 110 blade connections and is suitable for use in AC systems up to 1300VAC (UL) or 1250VAC (IEC).
Applications
- Protection of power semiconductors such as thyristors and diodes in industrial drives.
- High-power inverters and converters in renewable energy installations.
- Electrical distribution systems requiring high breaking capacity and fast interruption.
- Industrial machinery and automation equipment with sensitive electronic components.
Technical Specifications
- Item number: D300567
- Catalogue No: PC73UD13C450D1A
- Description: Square Body High-Speed Fuse Protistor® Size 73 aR 1250VAC IEC 1300VAC UL 450A With Striker DIN 110 Blades
- EAN/UPC Code: 3605340330380
- Rated voltage AC UL: 1300 V
- Rated voltage AC IEC: 1250 V
- Ampere Rating: 450 A
- AC or DC: AC
- Speed/Characteristic: aR
- Fuse Size: 73
- Mounting: Bolted
- Clearing I2t At Rated Voltage: 290 kA²s
- Melting I2t: 35.5 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: DIN 110 Blades
- Product Width: 73 mm
- Product Length: 133.4 mm
- Product Height: 78.5 mm
- Sell Pack Quantity: 3 EA
- Sell Pack Weight: 3.36 kg
- Sell Pack Width: 150 mm
- Sell Pack Length: 250 mm
- Sell Pack Height: 90 mm
- Product group: Semiconductor Protection Fuses
- Body/Insulating Material: Ceramic
- Product Weight: 1.12 kg
- Power Dissipation at Rated Current Value: 100 W
Frequently Asked Questions
What does the 'aR' characteristic mean for this fuse?
The 'aR' characteristic indicates a high-speed fuse designed specifically for semiconductor protection, capable of interrupting high short-circuit currents rapidly to protect sensitive devices.
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 purpose of the striker indication system?
The striker indication system provides a mechanical signal when the fuse has operated, allowing for remote fault indication and easier maintenance.
Is this fuse compatible with standard DIN 110 blade fuse holders?
Yes, this fuse uses DIN 110 blade terminals and is compatible with fuse holders designed for these blades.
Common Search Terms
high-speed fuse, semiconductor protection fuse, aR fuse, Size 73 fuse, 450A fuse, 1250VAC fuse, 1300VAC fuse, Protistor fuse, striker fuse, DIN 110 blade fuse, industrial fuse, power electronics fuse
| Manufacturer Part Number | D300567 |
|---|---|
| Packed Quantity | 1 |
| Barcode | 3605340330380 |
| Height | 133.4mm |
| Width | 73mm |
| Depth | 78.5mm |
| HS Code | 85351000 |
| Manufacturer | Mersen |
| Alternative Product SKU | PC73UD13C450D1A |
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