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MERSEN FUSE 6,921 CP AR 14.51 0025 FR14AR69V25T
MPN: W1056662
Alt. SKU: FR14AR69V25T
Special Price
£14.39
£11.99
Regular Price
£26.16
MERSEN FUSE 6,921 CP AR 14.51 0025 FR14AR69V25T is available to buy in increments of 10
Why Choose the High-Speed Cylindrical Fuse Protistor® Size 14x51 aR 690VAC IEC 25A With Striker FR14AR69V25T?
Engineered for optimal protection of power semiconductors, the Protistor® Size 14x51 aR 690VAC IEC 25A fuse offers excellent current limitation and rapid fault clearing. Its high-speed operation minimises equipment damage and downtime in demanding industrial and commercial environments.
The integrated striker enables reliable remote indication for timely maintenance, supporting advanced safety protocols. Precision manufactured to IEC standards, the FR14AR69V25T ensures dependable performance and compatibility with a wide range of fuse holders and panels.
Product Code: FR14AR69V25T
Key Benefits
- High-speed aR characteristic for rapid fault clearing and equipment protection.
- Integrated striker for reliable remote indication of fuse operation.
- Compliance with IEC standards ensures consistent quality and safety.
- Silver-plated copper terminals provide excellent conductivity and durability.
- Ceramic body offers superior insulation and thermal resistance.
- Compact 14x51 mm size fits standard fuse holders with clip mounting.
- High breaking capacity of 160 kA for demanding industrial applications.
Compatibility
The FR14AR69V25T fuse is compatible with standard 14x51 mm fuse holders designed for high-speed semiconductor protection fuses. Its clip mounting and ferrule terminal type allow easy installation in panels and switchgear designed for IEC 690 V rated fuses. The integrated striker indication system is compatible with remote signalling modules for enhanced safety monitoring.
Applications
- Protection of power semiconductors such as thyristors and diodes.
- Industrial motor drives and inverters.
- Power supply units and converters.
- Renewable energy systems including solar and wind installations.
- Automation and control equipment requiring fast-acting overcurrent protection.
- General industrial electrical panels and switchgear.
Technical Specifications
- Item number: W1056662
- Catalogue No: FR14AR69V25T
- Description: High-Speed Cylindrical Fuse Protistor® Size 14x51 aR 690VAC IEC 25A With Striker
- EAN/UPC Code: 3605340592757
- Rated voltage AC IEC: 690 V
- Ampere Rating: 25 A
- RoHS Compliant: Yes
- AC or DC: AC
- Speed/Characteristic: aR
- Fuse Size: 14x51
- Mounting: Clip
- Clearing I2t At Rated Voltage: 345 A²s
- Melting I2t: 45.3 A²s
- AC Max I.R./Breaking Capacity: I1: 160 kA
- Indication System: Yes
- Indication System Type: Striker
- Connection/Terminal Material: Silver-Plated Copper
- Connection/Terminal Type: Ferrule
- Product Diameter: 14.3 mm
- Product Length: 51 mm
- Sell Pack Quantity: 10 EA
- Sell Pack Weight: 0.2 kg
- Sell Pack Width: 73 mm
- Sell Pack Length: 107 mm
- Sell Pack Height: 15 mm
- Product group: Semiconductor Protection Fuses
- Body/Insulating Material: Ceramic
- Product Weight: 0.02 kg
- Power Dissipation at Rated Current Value: 6 W
Frequently Asked Questions
What does the 'aR' speed characteristic mean?
The 'aR' designation indicates a high-speed fuse characteristic specifically designed for semiconductor protection, allowing rapid interruption of short-circuit currents to protect sensitive components.
Is this fuse suitable for DC applications?
No, the FR14AR69V25T is rated for AC applications only, up to 690 V as per IEC standards.
How does the striker indication system work?
The striker mechanism provides a mechanical signal when the fuse operates, enabling remote indication through compatible signalling devices to alert maintenance personnel promptly.
Can this fuse be used in renewable energy systems?
Yes, its high breaking capacity and fast operation make it suitable for protecting power semiconductors in solar and wind energy installations.
Common Search Terms
High-speed fuse, semiconductor protection fuse, Protistor fuse, 14x51 fuse, 25A fuse, 690V fuse, aR fuse, cylindrical fuse with striker, IEC fuse, power semiconductor fuse, industrial fuse, clip mounting fuse.
| Manufacturer Part Number | W1056662 |
|---|---|
| Packed Quantity | 10 |
| Barcode | 3605340592757 |
| Height | 51mm |
| Width | 14.3mm |
| Depth | 14.3mm |
| HS Code | 85361050 |
| Country of Manufacture | Tunisia |
| Manufacturer | Mersen |
| Alternative Product SKU | FR14AR69V25T |
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