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MERSEN FUSE 12,5 URD 72 EF 0400 12,5URD72EF0400
MPN: M300621
Alt. SKU: PC72UD13C400EF
Special Price
£131.32
£109.43
Regular Price
£238.76
MERSEN FUSE 12,5 URD 72 EF 0400 12,5URD72EF0400 is available to buy in increments of 3
Why Choose the Square Body High-Speed Fuse Protistor® Size 72 aR 1250VAC IEC 1300VAC UL 400A With Striker Open Slot Blades PC72UD13C400EF?
Engineered for modern industrial and power electronic applications, this high-speed Protistor® fuse delivers reliable protection for sensitive components in demanding environments. With a 1250VAC IEC and 1300VAC UL rating at 400A, it ensures rapid fault interruption and minimises downtime in critical systems.
The square body design, integrated striker, and open slot blades facilitate straightforward installation and clear fault indication, making it ideal for use in high-performance drives, inverters, and power conversion systems. Trustworthy build quality supports operational safety and extended equipment life.
Technical Specifications
- Item number: M300621
- Catalogue No: PC72UD13C400EF
- Description: Square Body High-Speed Fuse Protistor® Size 72 aR 1250VAC IEC 1300VAC UL 400A With Striker Open Slot Blades
- EAN/UPC Code: 3605340331103
- 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: 72
- Mounting: Bolted
- Clearing I2t At Rated Voltage: 270 kA²s
- Melting I2t: 32.8 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: Open Slot Blades
- Product Width: 59 mm
- Product Length: 149.4 mm
- Product Height: 63 mm
- Sell Pack Quantity: 3 EA
- Sell Pack Weight: 2.274 kg
- Sell Pack Width: 157 mm
- Sell Pack Length: 205 mm
- Sell Pack Height: 80 mm
- Product group: Semiconductor Protection Fuses
- Body/Insulating Material: Ceramic
- Product Weight: 0.758 kg
- Power Dissipation at Rated Current Value: 80 W
Product Code: M300621
Key Benefits
- High-speed aR characteristic for rapid fault clearing, protecting sensitive electronic components.
- Robust ceramic body ensures durability and reliable insulation under high voltage conditions.
- Integrated striker indication system provides clear and immediate fault visualisation.
- Open slot blade terminals with silver-plated copper for excellent conductivity and secure connection.
- Designed for bolted mounting for stable and secure installation in industrial equipment.
- High breaking capacity (126 kA) ensures safety in demanding power applications.
Compatibility
This fuse is compatible with industrial power electronic equipment such as variable frequency drives, inverters, power converters, and semiconductor protection circuits requiring high-speed aR fuses with size 72 dimensions and bolted mounting.
Applications
- Protection of power semiconductor devices in industrial drives and motor controllers.
- Use in power conversion systems including inverters and rectifiers.
- High voltage AC circuits requiring fast-acting fuse protection.
- Industrial automation and process control equipment.
Frequently Asked Questions
What does the "aR" characteristic mean for this fuse?
The "aR" characteristic indicates that this is a partial-range high-speed fuse designed to protect semiconductor devices by providing rapid interruption of short-circuit faults while allowing for normal inrush currents.
Can this fuse be used in DC circuits?
No, this specific fuse is rated for AC applications only, as indicated in the technical specifications.
How does the striker indication system work?
The striker indication system provides a mechanical visual signal by triggering a striker when the fuse element blows, allowing quick identification of a blown fuse without disassembly.
What mounting options are available for this fuse?
This fuse is designed for bolted mounting, ensuring a secure and stable installation in electrical panels or equipment.
Common Search Terms
high speed fuse, Protistor fuse, size 72 fuse, aR fuse, 400A fuse, semiconductor protection fuse, industrial fuse, bolted mount fuse, striker indication fuse, 1250VAC fuse, 1300VAC fuse
| Manufacturer Part Number | M300621 |
|---|---|
| Packed Quantity | 3 |
| Barcode | 3605340331103 |
| Height | 149.4mm |
| Width | 59mm |
| Depth | 63mm |
| HS Code | 85351000 |
| Manufacturer | Mersen |
| Alternative Product SKU | PC72UD13C400EF |
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