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MERSEN FUSE CC 7,5 GRC 122 TTF 0250 B090437

MPN: B090437

Alt. SKU: D122GC75V250TF

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Why Choose the Square Body High-Speed Fuse Protistor® Size 122 gR 750VDC IEC 250A With Striker Flush Ends Metric Threads?

The D122GC75V250TF high-speed fuse provides reliable DC circuit protection up to 750VDC and 250A, meeting IEC standards for demanding industrial and renewable energy applications. Its gR characteristic ensures full-range protection against overloads and short circuits.

Featuring striker flush ends with metric threads, this fuse enables secure installation and straightforward visual indication, optimising system safety and maintenance efficiency. Robust square body construction guarantees durability and consistent performance in critical environments.

Product Code: B090437

Key Benefits

  • High-speed protection for semiconductor devices and DC circuits.
  • Reliable operation up to 750 VDC and 250 A.
  • Striker indication system provides clear visual fault signalling.
  • Flush ends with metric threads ensure secure and easy installation.
  • Ceramic square body offers excellent durability and heat resistance.
  • Compliant with IEC standards for industrial and renewable energy use.

Compatibility

This fuse is compatible with fuse holders and switchgear designed for Size 122 fuses with bolted mounting and metric threaded flush ends. It is suitable for systems requiring gR characteristic fuses for semiconductor protection in DC applications up to 750 V.

Applications

  • Photovoltaic (solar) power installations.
  • Industrial DC power supplies and drives.
  • Battery protection in energy storage systems.
  • Semiconductor device protection in power electronics.
  • Electric vehicle charging infrastructure.

Technical Specifications

  • Item number: B090437
  • Catalogue No: D122GC75V250TF
  • Description: Square Body High-Speed Fuse Protistor® Size 122 gR 750VDC IEC 250A With Striker Flush ends metric threads
  • EAN/UPC Code: 3605340090000
  • Rated voltage DC IEC: 750 V
  • Ampere Rating: 250 A
  • RoHS Compliant: Yes
  • AC or DC: DC
  • Speed/Characteristic: gR
  • Fuse Size: 122
  • Mounting: Bolted
  • Melting I2t: 18.05 kA²s
  • Max. Rated Breaking Capacity DC: 100 kA
  • Design Details: gRC
  • Indication System: Yes
  • Indication System Type: Striker
  • Connection/Terminal Material: Silver-Plated Brass
  • Connection/Terminal Type: Flush ends
  • Product Width: 59 mm
  • Product Length: 131 mm
  • Product Height: 63 mm
  • Sell Pack Quantity: 1 EA
  • Sell Pack Weight: 1.43 kg
  • Sell Pack Width: 130 mm
  • Sell Pack Length: 200 mm
  • Sell Pack Height: 90 mm
  • Product group: Semiconductor Protection Fuses
  • Body/Insulating Material: Ceramic
  • Product Weight: 1.43 kg
  • Power Dissipation at Rated Current Value: 46.7 W

Frequently Asked Questions

What does the gR characteristic mean?

The gR characteristic indicates that the fuse provides full-range protection for semiconductor devices and general overloads, suitable for DC applications.

Can this fuse be used in AC circuits?

This particular fuse is designed for DC applications up to 750 V and is not recommended for AC circuits.

How does the striker indication system work?

The striker system provides a visual indication by activating a mechanical striker when the fuse blows, enabling quick fault identification.

Is this fuse RoHS compliant?

Yes, this fuse complies with RoHS environmental standards.

Common Search Terms

high-speed fuse, DC fuse, semiconductor protection fuse, 750V fuse, 250A fuse, gR fuse, size 122 fuse, striker indication fuse, flush end fuse, metric thread fuse, Protistor fuse

More Information
Manufacturer Part Number B090437
Packed Quantity 1
Barcode 3605340090000
Height 131mm
Width 59mm
Depth 63mm
HS Code 85361090
Country of Manufacture France
Manufacturer Mersen
Alternative Product SKU D122GC75V250TF
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