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MERSEN FUSE 6,900 CP GR 14.51 0004 FR14GR69V4
High-speed cylindrical fuse engineered for reliable protection of power semiconductor devices with a 4A rating at 690VAC, featuring an integrated striker for remote signalling.
£6.68
Why Choose the Mersen FR14GR69V4 Protistor® High-Speed Fuse?
The Mersen FR14GR69V4 is a compact Protistor® high-speed cylindrical semiconductor fuse designed to provide dependable full-range protection for sensitive power semiconductor devices used in industrial power electronic systems. Classified as a gR semiconductor fuse and manufactured in accordance with IEC 60269-1 and IEC 60269-4, it delivers rapid fault interruption for both overload and short-circuit conditions, helping to maximise equipment reliability and minimise downtime.
Manufactured by Mersen, the FR14GR69V4 is engineered for demanding applications including variable frequency drives, UPS systems, industrial inverters and power conversion equipment. Its fast operating characteristics and current-limiting performance help protect valuable IGBTs, thyristors, diodes and rectifiers from damaging fault currents.
With a 4 A current rating, a 690 V AC IEC / 700 V AC UL voltage rating and a compact 14 × 51 mm cylindrical body, the FR14GR69V4 is ideal for industrial control panels where reliable semiconductor protection is essential.
Key Advantages
- Fast-acting gR semiconductor protection fuse.
- 4 A rated current for industrial power electronics.
- 690 V AC IEC / 700 V AC UL voltage rating.
- Full-range protection against overloads and short circuits.
- Current-limiting design with low let-through energy.
- Compact 14 × 51 mm cylindrical construction.
Key Features
- Mersen Protistor® Series.
- Catalogue number: FR14GR69V4.
- gR utilisation category.
- 4 A rated current.
- 690 V AC IEC / 700 V AC UL rated.
- 14 × 51 mm cylindrical ceramic fuse.
- Current-limiting semiconductor protection.
- Complies with IEC 60269-4 and UL 248-13.
Reliable Semiconductor Protection for Industrial Equipment
The Mersen FR14GR69V4 has been engineered to rapidly interrupt excessive fault currents before they can damage costly semiconductor devices. Its low let-through energy reduces thermal and electrical stress on sensitive components, helping to extend equipment life and improve operational reliability.
As a gR class fuse, the FR14GR69V4 provides full-range protection against both overloads and short circuits, making it suitable for protecting industrial power electronic systems requiring continuous semiconductor protection.
Typical Applications
- Variable frequency drives (VFDs).
- Industrial motor drives.
- UPS systems.
- Industrial inverters.
- Power converters and rectifiers.
- Protection of IGBTs, thyristors and other semiconductor devices.
Technical Specifications
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| Fuse Indication | Striker | |
|---|---|---|
| Fuse Type | Semiconductor | |
| Fuse Size | 14x51 mm | |
| Fuse Class | gR | |
| Voltage | 690 V | |
| Item number | E1017179 | |
| Catalogue No | FR14GR69V4T | |
| Description | High-Speed Cylindrical Fuse Protistor® Size 14x51 gR 690VAC IEC 4A With Striker | |
| EAN/UPC Code | 3605340506761 | |
| Rated voltage AC IEC | 690 V | |
| Ampere Rating | 4 A | |
| RoHS Compliant | Yes | |
| AC or DC | AC | |
| Speed/Characteristic | gR | |
| Fuse Size | 14x51 | |
| Mounting | Clip | |
| Clearing I2t At Rated Voltage | 13 A²s | |
| Melting I2t | 6.7 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 | 75 mm | |
| Sell Pack Length | 104 mm | |
| Sell Pack Height | 16 mm | |
| Product group | Semiconductor Protection Fuses | |
| Body/Insulating Material | Ceramic | |
| Product Weight | 0.02 kg | |
| Power Dissipation at Rated Current Value | 2.9 W | |
| HS Code | 85361010 | |
| Country of Manufacture | Tunisia |
Frequently Asked Questions
What is the Mersen FR14GR69V4 used for?
It provides full-range protection for power semiconductor devices used in industrial drives, UPS systems, inverters and power electronic equipment.
What is the current rating of this fuse?
The Mersen FR14GR69V4 has a rated current of 4 A.
What voltage is the FR14GR69V4 rated for?
The fuse is rated for 690 V AC (IEC) and 700 V AC (UL) applications.
What does the gR classification mean?
The gR utilisation category provides full-range protection for semiconductor devices against both overloads and short-circuit currents.
Where is the FR14GR69V4 commonly installed?
It is commonly installed in industrial drives, power converters, UPS systems, inverters and other equipment containing sensitive power semiconductors.
Trusted Protection for Industrial Power Electronics
Mersen Protistor® semiconductor fuses are trusted worldwide by OEMs, panel builders and industrial engineers to provide dependable protection for critical power electronic systems.
