We use cookies to make your experience better. To comply with the new e-Privacy directive, we need to ask for your consent to set the cookies. Learn more.
MERSEN FUSE 12,5 URD 73 TT F 0400 12,5URD73TTF0400
MPN: L300505
Alt. SKU: PC73UD13C400TF
Special Price
£119.53
£99.61
Regular Price
£217.32
Why Choose the Square Body High-Speed Fuse Protistor® Size 73 aR 1250VAC IEC 1300VAC UL 400A With Striker Flush Ends Metric Threads PC73UD13C400TF?
Engineered for critical protection in high-power industrial applications, this Protistor® fuse offers rapid fault interruption at up to 1,250 VAC (IEC) and 1,300 VAC (UL), with a robust 400A current rating. Its square body and striker flush ends ensure straightforward installation, enhanced system protection, and reliable indication for remote signalling.
Precision-manufactured with metric threads for secure mounting, the PC73UD13C400TF combines superior arc-quenching capability with compliance to global standards, making it ideal for safeguarding sensitive power electronic equipment and minimising downtime in demanding environments.
Technical Specifications
- Item number: L300505
- Catalogue No: PC73UD13C400TF
- Description: Square Body High-Speed Fuse Protistor® Size 73 aR 1250VAC IEC 1300VAC UL 400A With Striker Flush ends metric threads
- EAN/UPC Code: 3605340329469
- Rated voltage AC UL: 1300 V
- Rated voltage AC IEC: 1250 V
- Ampere Rating: 400 A
- AC or DC: AC
- Speed/Characteristic: aR
- Fuse Size: 73
- Mounting: Bolted
- Clearing I2t At Rated Voltage: 205 kA²s
- Melting I2t: 25 kA²s
- AC Max I.R./Breaking Capacity: I1: 126 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: 93 W
Product Code: L300505
Key Benefits
- High-speed interruption ensures rapid fault clearance, protecting sensitive equipment.
- Robust 400A rating suitable for demanding industrial power applications.
- Striker indication system provides reliable remote signalling of fuse operation.
- Flush end silver-plated brass terminals allow secure and easy bolted mounting.
- Ceramic body offers excellent arc-quenching and thermal stability.
- Compliance with IEC and UL standards ensures global applicability.
Compatibility
This fuse is compatible with fuse holders and switchgear designed for Size 73 high-speed semiconductor protection fuses with metric thread mounting. It integrates seamlessly into systems requiring aR characteristic fuses rated for up to 1300 VAC and 400A current.
Applications
- Protection of power electronic devices such as thyristors and diodes.
- Industrial motor drives and inverters.
- Renewable energy systems including solar inverters and wind turbines.
- Uninterruptible power supplies (UPS) and power conversion equipment.
- High-power industrial machinery requiring fast-acting overcurrent protection.
Frequently Asked Questions
What does the aR characteristic mean for this fuse?
The aR characteristic indicates that this fuse is a high-speed semiconductor fuse designed to protect power semiconductors by interrupting short-circuit currents very quickly, minimising damage to sensitive components.
Can this fuse be used in DC circuits?
No, this particular fuse is rated for AC applications only, as specified in the technical specifications.
How does the striker indication system work?
The striker indication system provides a mechanical signal when the fuse operates, which can be used for remote signalling or visual indication of fuse status.
Is this fuse suitable for international standards?
Yes, it meets both IEC and UL rated voltage standards, making it suitable for use in many international markets.
Common Search Terms
high-speed fuse, semiconductor protection fuse, Size 73 fuse, 400A fuse, Protistor fuse, aR fuse, 1250VAC fuse, 1300VAC fuse, striker indication fuse, ceramic body fuse, industrial fuse, bolted fuse, flush end terminals
| Manufacturer Part Number | L300505 |
|---|---|
| Packed Quantity | 1 |
| Barcode | 3605340329469 |
| Height | 74mm |
| Width | 73mm |
| Depth | 78.5mm |
| HS Code | 85351000 |
| Manufacturer | Mersen |
| Alternative Product SKU | PC73UD13C400TF |
Write Your Own Review
