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MERSEN FUSE 821 CP GRB 27.60 25 821CPGRB27.6025
Reliable high-speed gR fuse with built-in striker for remote indication, rated 25A at 800VAC IEC standards, designed for semiconductor protection in industrial applications.
£44.20
Why Choose the Mersen FR27GB80V25T High-Speed Semiconductor Fuse?
The Mersen FR27GB80V25T (Item Number X221441) is a premium Protistor® high-speed cylindrical semiconductor fuse designed to provide full-range protection for sensitive power semiconductor devices. As part of the Mersen Protistor® 27 × 60 mm gR (gRB) series, this fuse features an integrated trip indicator (striker) for rapid fault indication and simplified maintenance. Rated at 25 A and 800 V AC (IEC), it is ideally suited to industrial power conversion and automation equipment.
Engineered with precision die-cut fuse elements embedded in solidified sand, the FR27GB80V25T delivers excellent current-limiting performance with low let-through energy, helping to protect IGBTs, SCRs, diodes and other semiconductor devices from costly damage during fault conditions.
Its compact 27 × 60 mm cylindrical body fits compatible fuse holders used in drives, converters, UPS systems and industrial control equipment. The integrated striker enables quick visual indication and can be connected to compatible monitoring systems for remote fuse status signalling.
Key Advantages
- High-speed gR semiconductor protection fuse.
- 25 A current rating for industrial power electronics.
- 800 V AC IEC rated.
- Integrated striker for rapid fuse indication.
- Excellent current-limiting characteristics minimise semiconductor damage.
- Compact 27 × 60 mm cylindrical construction.
Key Features
- Mersen Protistor® 27 × 60 mm gR (gRB) series.
- 25 A rated current.
- 800 V AC IEC rated voltage.
- gR utilisation category for full-range semiconductor protection.
- Integrated trip indicator (striker).
- 90 kA AC breaking capacity.
- Low clearing I²t for improved semiconductor protection.
- RoHS compliant.
Reliable Protection for Industrial Power Electronics
The FR27GB80V25T rapidly interrupts fault currents before they can damage expensive semiconductor devices. Its low let-through energy and high interrupting capacity improve equipment reliability while helping reduce maintenance costs and production downtime.
The built-in striker provides immediate indication when the fuse has operated and supports connection to compatible auxiliary monitoring systems, making it ideal for modern industrial automation and power conversion equipment.
Typical Applications
- Variable frequency drives (VFDs).
- Industrial inverters.
- Power converters.
- UPS systems.
- Servo drives.
- Industrial automation equipment.
- Rectifiers and power supplies.
Technical Specifications
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| Fuse Indication | Striker | |
|---|---|---|
| Fuse Type | Semiconductor | |
| Fuse Size | 26x60 mm | |
| Fuse Class | gR | |
| Voltage | 800 V | |
| Item number | X221441 | |
| Catalogue No | FR27GB80V25T | |
| Description | High-Speed Cylindrical Fuse Protistor® Size 27x60 gR 800VAC IEC 25A With Striker | |
| EAN/UPC Code | 3605340253726 | |
| Rated voltage AC IEC | 800 V | |
| Ampere Rating | 25 A | |
| RoHS Compliant | Yes | |
| AC or DC | AC | |
| Speed/Characteristic | gR | |
| Fuse Size | 26x60 | |
| Mounting | Clip | |
| Clearing I2t At Rated Voltage | 600 A²s | |
| AC Max I.R./Breaking Capacity | I1: 90 kA | |
| Design Details | gRB | |
| Indication System | Yes | |
| Indication System Type | Striker | |
| Connection/Terminal Material | Silver-Plated Copper | |
| Connection/Terminal Type | Ferrule | |
| Product Diameter | 27 mm | |
| Product Length | 60.3 mm | |
| Sell Pack Quantity | 10 EA | |
| Sell Pack Weight | 0.8 kg | |
| Sell Pack Width | 123 mm | |
| Sell Pack Length | 138 mm | |
| Sell Pack Height | 30 mm | |
| Product group | Semiconductor Protection Fuses | |
| Body/Insulating Material | Ceramic | |
| Product Weight | 0.08 kg | |
| Power Dissipation at Rated Current Value | 5 W | |
| HS Code | 85361050 | |
| Country of Manufacture | France |
Frequently Asked Questions
What is the Mersen FR27GB80V25T used for?
It provides full-range high-speed protection for semiconductor devices used in industrial drives, converters, UPS systems and other power electronic equipment.
What are the voltage and current ratings?
The fuse is rated at 25 A and 800 V AC (IEC).
What does the gR classification mean?
The gR utilisation category provides full-range protection for semiconductor devices against both overload and short-circuit conditions.
Does this fuse include a fault indicator?
Yes. The FR27GB80V25T includes an integrated striker (trip indicator) for local indication and remote monitoring.
Where is this fuse commonly installed?
It is installed in compatible cylindrical fuse holders within industrial drives, converters, UPS systems and automation equipment.
Trusted for Semiconductor Protection Worldwide
Mersen Protistor® semiconductor fuses are trusted worldwide by OEMs, panel builders and maintenance engineers for protecting critical industrial power electronic equipment.
