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MERSEN FUSE 12,5 URD 70 TT F 0250 12,5URD70TTF0250
MPN: T300489
Alt. SKU: PC70UD13C250TF
Special Price
£75.50
£62.92
Regular Price
£137.28
MERSEN FUSE 12,5 URD 70 TT F 0250 12,5URD70TTF0250 is available to buy in increments of 3
Why Choose the Square Body High-Speed Fuse Protistor® Size 70 aR 1250VAC IEC 1300VAC UL 250A With Striker Flush Ends Metric Threads PC70UD13C250TF?
The PC70UD13C250TF high-speed fuse is engineered for reliable protection of power semiconductors in demanding industrial applications. Certified to IEC 60269-4 and UL standards, it safely interrupts high fault currents up to 250A at 1250VAC (IEC) and 1300VAC (UL).
Its robust square body design with striker flush ends and metric threads ensures secure installation and signal contact for status indication. Optimised for efficiency, this Protistor® fuse minimises energy let-through (I²t), supporting extended equipment life and operational safety.
Technical Specifications
- Item number: T300489
- Catalogue No: PC70UD13C250TF
- Description: Square Body High-Speed Fuse Protistor® Size 70 aR 1250VAC IEC 1300VAC UL 250A With Striker Flush ends metric threads
- EAN/UPC Code: 3605340329186
- Rated voltage AC UL: 1300 V
- Rated voltage AC IEC: 1250 V
- Ampere Rating: 250 A
- AC or DC: AC
- Speed/Characteristic: aR
- Fuse Size: 70
- Mounting: Bolted
- Clearing I2t At Rated Voltage: 77000 A²s
- Melting I2t: 9580 A²s
- 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: 39.8 mm
- Product Length: 74 mm
- Product Height: 49.5 mm
- Sell Pack Quantity: 3 EA
- Sell Pack Weight: 1.017 kg
- Sell Pack Width: 85 mm
- Sell Pack Length: 133 mm
- Sell Pack Height: 55 mm
- Product group: Semiconductor Protection Fuses
- Body/Insulating Material: Ceramic
- Product Weight: 0.339 kg
- Power Dissipation at Rated Current Value: 58 W
Product Code: T300489
Key Benefits
- High-speed interruption for semiconductor protection, reducing equipment damage risk.
- Certified to IEC 60269-4 and UL standards ensuring compliance and safety.
- Robust ceramic body with striker flush ends for reliable installation and clear status indication.
- Minimised energy let-through (I²t) enhances operational safety and extends equipment life.
- Silver-plated brass terminals provide excellent conductivity and corrosion resistance.
Compatibility
This fuse is compatible with Size 70 fuse holders designed for bolted mounting and supports industrial power semiconductor protection systems requiring aR characteristic fuses rated at 250A and voltages up to 1300VAC (UL) / 1250VAC (IEC).
Applications
- Protection of power semiconductors such as thyristors and diodes in industrial drives.
- High-speed fuse applications in motor control centres and power converters.
- Use in industrial automation and manufacturing equipment requiring reliable fault clearing.
- Electrical distribution systems with high fault current interruption needs.
Frequently Asked Questions
What does the aR speed/characteristic mean?
The aR characteristic indicates a high-speed fuse designed specifically for semiconductor protection, capable of interrupting short-circuit currents quickly to protect sensitive components.
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 visual and mechanical indication of fuse operation, enabling quick identification of blown fuses without disassembly.
Are the metric threads compatible with standard fuse holders?
Yes, the metric threads are designed for secure mounting in compatible Size 70 fuse holders with bolted connections.
Common Search Terms
High-speed fuse, Protistor fuse, Size 70 fuse, semiconductor protection fuse, aR fuse 250A, 1250VAC fuse, 1300VAC fuse, striker fuse, flush end fuse, industrial fuse, ceramic body fuse.
| Manufacturer Part Number | T300489 |
|---|---|
| Packed Quantity | 3 |
| Barcode | 3605340329186 |
| Height | 74mm |
| Width | 39.8mm |
| Depth | 49.5mm |
| HS Code | 85351000 |
| Manufacturer | Mersen |
| Alternative Product SKU | PC70UD13C250TF |
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