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MERSEN FUSE 6,9 URD 73 TTF 1600 6,9URD73TTF1600
MPN: B301301
Alt. SKU: PC73UD69V16CTF
Special Price
£220.18
£183.48
Regular Price
£400.32
Why Choose the Square Body High-Speed Fuse Protistor® Size 73 aR 690VAC IEC 700VAC UL 1600A With Striker Flush Ends Metric Threads PC73UD69V16CTF?
Engineered for demanding power electronics, this high-speed Protistor® fuse offers reliable aR class protection at up to 690VAC (IEC) and 700VAC (UL), with a robust 1600A current rating. Its square body design ensures maximum thermal and electrical performance in compact installations.
Featuring flush striker ends and metric threads for seamless integration, the fuse enables fast fault interruption and remote indication—ideal for critical industrial and utility applications requiring superior protection and operational efficiency.
Technical Specifications
- Item number: B301301
- Catalogue No: PC73UD69V16CTF
- Description: Square Body High-Speed Fuse Protistor® Size 73 aR 690VAC IEC 700VAC UL 1600A With Striker Flush ends metric threads
- EAN/UPC Code: 3605340339444
- Rated voltage AC UL: 700 V
- Rated voltage AC IEC: 690 V
- Ampere Rating: 1600 A
- AC or DC: AC
- Speed/Characteristic: aR
- Fuse Size: 73
- Mounting: Bolted
- Clearing I2t At Rated Voltage: 5740 kA²s
- Melting I2t: 1430 kA²s
- AC Max I.R./Breaking Capacity: I1: 150 kA
- Indication System: Yes
- Indication System Type: Striker
- Connection/Terminal Material: Silver-Plated Brass
- Connection/Terminal Type: Flush ends
- Product Width: 73 mm
- Product Length: 74 mm
- Product Height: 78.5 mm
- Sell Pack Quantity: 1 EA
- Sell Pack Weight: 1.22 kg
- Sell Pack Width: 110 mm
- Sell Pack Length: 125 mm
- Sell Pack Height: 75 mm
- Product group: Semiconductor Protection Fuses
- Body/Insulating Material: Ceramic
- Product Weight: 1.22 kg
- Power Dissipation at Rated Current Value: 203 W
Product Code: B301301
Key Benefits
- High-speed aR class fuse ensures rapid fault interruption for sensitive semiconductor protection.
- Rated for 1600A at up to 700VAC (UL) and 690VAC (IEC), suitable for demanding industrial environments.
- Square body design optimises thermal and electrical performance in compact spaces.
- Flush striker ends with metric threads enable secure, bolted mounting and easy integration.
- Striker indication system provides clear visual fault detection for maintenance efficiency.
- Silver-plated brass terminals ensure reliable electrical connection and corrosion resistance.
- Ceramic insulating body offers robust mechanical strength and high dielectric withstand.
Compatibility
This fuse is compatible with fuse holders and switchgear designed for Size 73 Protistor® fuses with bolted mounting. It is suitable for use in industrial power electronics, semiconductor protection circuits, and utility applications requiring high breaking capacity and fast fault clearing.
Applications
- Protection of power semiconductor devices such as thyristors and diodes.
- Industrial motor drives and variable speed drives.
- Power supplies and inverters in renewable energy systems.
- Utility substations and electrical distribution networks.
- High-power rectifier circuits and converters.
Frequently Asked Questions
What does the aR speed/characteristic mean?
aR stands for partial-range high-speed fuse characteristic, designed specifically for semiconductor protection by rapidly clearing short circuit faults while allowing normal overload conditions.
Can this fuse be used in DC applications?
No, this fuse is rated for AC applications only, as indicated by the AC or DC specification.
How does the striker indication system work?
The striker indication system provides a mechanical visual signal by releasing a striker when the fuse operates, enabling quick identification of a blown fuse without disassembly.
What is the breaking capacity of this fuse?
The fuse has a maximum breaking capacity of 150 kA at rated voltage, ensuring safe interruption of high fault currents.
Common Search Terms
high-speed fuse, Protistor fuse, Size 73 fuse, 1600A fuse, semiconductor protection fuse, aR fuse, 690VAC fuse, 700VAC fuse, flush end fuse, striker indication fuse, bolted mounting fuse, ceramic body fuse
| Manufacturer Part Number | B301301 |
|---|---|
| Packed Quantity | 1 |
| Barcode | 3605340339444 |
| Height | 74mm |
| Width | 73mm |
| Depth | 78.5mm |
| HS Code | 85361090 |
| Manufacturer | Mersen |
| Alternative Product SKU | PC73UD69V16CTF |
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