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MERSEN FUSE 6,9 GRB 71 EF 0250 PC71GB69V250EF
MPN: B301324
Alt. SKU: PC71GB69V250EF
Special Price
£100.98
£84.15
Regular Price
£183.60
MERSEN FUSE 6,9 GRB 71 EF 0250 PC71GB69V250EF is available to buy in increments of 3
Why Choose the Square Body High-Speed Fuse Protistor® Size 71 gR 690VAC IEC 250A With Striker Open Slot Blades PC71GB69V250EF?
This high-speed fuse is engineered for optimum protection of sensitive semiconductor devices, offering fast and reliable interruption under fault conditions up to 690VAC. The Size 71 Protistor® design ensures robust thermal and electrical performance in demanding industrial applications.
Featuring a striker mechanism for effective fuse status indication and open slot blades for secure installation, this 250A fuse complies with IEC standards, delivering trusted circuit protection and maximising equipment uptime.
Product Code: B301324
Key Benefits
- High-speed protection ideal for sensitive semiconductor devices.
- Striker indication system provides clear fuse status for quick diagnostics.
- Open slot blades ensure secure and reliable electrical connections.
- Robust ceramic body for enhanced durability and thermal performance.
- Complies with IEC standards for guaranteed quality and safety.
- High breaking capacity of 150 kA for superior fault interruption.
Compatibility
This fuse is compatible with industrial electrical systems requiring high-speed semiconductor protection at voltages up to 690V AC and currents up to 250A. It is suitable for bolted mounting fuse holders designed for Size 71 fuses with open slot blade terminals.
Applications
- Protection of power semiconductor devices such as thyristors and diodes.
- Industrial motor drives and inverters.
- Power supply units and transformers.
- Renewable energy systems including solar inverters.
- Automation and control systems requiring fast fault clearance.
Technical Specifications
- Item number: B301324
- Catalogue No: PC71GB69V250EF
- Description: Square Body High-Speed Fuse Protistor® Size 71 gR 690VAC IEC 250A With Striker Open Slot Blades
- EAN/UPC Code: 3605340339697
- Rated voltage AC IEC: 690 V
- Ampere Rating: 250 A
- RoHS Compliant: Yes
- AC or DC: AC
- Speed/Characteristic: gR
- Fuse Size: 71
- Mounting: Bolted
- Clearing I2t At Rated Voltage: 56 kA²s
- Melting I2t: 9.58 kA²s
- AC Max I.R./Breaking Capacity: I1: 150 kA
- Indication System: Yes
- Indication System Type: Striker
- Connection/Terminal Material: Silver-Plated Copper
- Connection/Terminal Type: Open Slot Blades
- Product Width: 51 mm
- Product Length: 133.4 mm
- Product Height: 56.5 mm
- Sell Pack Quantity: 3 EA
- Sell Pack Weight: 1.6098 kg
- Sell Pack Width: 140 mm
- Sell Pack Length: 174 mm
- Sell Pack Height: 71 mm
- Product group: Semiconductor Protection Fuses
- Body/Insulating Material: Ceramic
- Product Weight: 0.5366 kg
- Power Dissipation at Rated Current Value: 48 W
Frequently Asked Questions
What does the gR speed/characteristic mean?
The gR characteristic indicates a high-speed fuse designed specifically for the protection of semiconductor devices, providing fast interruption of short-circuit currents.
Is this fuse suitable for DC applications?
No, this particular fuse is rated for AC applications only, as specified in the technical specifications.
How does the striker indication system work?
The striker mechanism physically ejects or moves when the fuse blows, providing a clear visual indication that the fuse has operated and needs replacement.
Can this fuse be used in renewable energy systems?
Yes, it is suitable for protecting semiconductor devices in renewable energy applications such as solar inverters, provided the voltage and current ratings are compatible.
Common Search Terms
high-speed fuse, semiconductor protection fuse, 690V fuse, 250A fuse, Protistor fuse, Size 71 fuse, gR fuse, striker indication fuse, open slot blade fuse, bolted mounting fuse
| Manufacturer Part Number | B301324 |
|---|---|
| Packed Quantity | 3 |
| Barcode | 3605340339697 |
| Height | 133.4mm |
| Width | 51mm |
| Depth | 56.5mm |
| HS Code | 85361090 |
| Country of Manufacture | France |
| Manufacturer | Mersen |
| Alternative Product SKU | PC71GB69V250EF |
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