MERSEN FUSE CC 7,5 GRC 122 TT F 0400 C090438

MERSEN FUSE CC 7,5 GRC 122 TT F 0400 C090438

High-speed gR-class DC fuse for semiconductor protection rated at 750 V and 400 A with integrated striker indication and bolted mounting.

SKU: C090438Alt SKU: D122GC75V400TFMPN: C090438
Price
List Price £407.90 ex VAT
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£407.90
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Why Choose the Mersen C090438 Industrial Fuse?

The Mersen C090438 is a dependable industrial fuse designed to provide reliable overcurrent and short-circuit protection for electrical equipment, power distribution systems and industrial machinery. Manufactured by Mersen, a recognised specialist in electrical protection, this fuse is intended for applications where consistent fault interruption and dependable circuit protection are essential.

The C090438 helps protect cables, conductors and connected equipment by interrupting the electrical circuit when excessive current occurs. Its industrial-grade construction supports reliable operation in demanding electrical environments, helping reduce the risk of equipment damage, unplanned downtime and costly maintenance.

Suitable for use within correctly rated fuse holders and electrical assemblies, the Mersen C090438 fuse can be incorporated into control panels, distribution equipment, machinery and power conversion systems. The precise electrical rating and installation requirements should always be confirmed against the equipment specification and official Mersen technical documentation before installation.

Key Advantages

  • Reliable overcurrent and short-circuit protection for industrial electrical systems.
  • Manufactured by Mersen, a recognised electrical protection specialist.
  • Helps protect cables, conductors and connected electrical equipment.
  • Designed for dependable operation in demanding industrial environments.
  • Supports reduced equipment damage and maintenance downtime.
  • Suitable for integration into compatible fuse holders and electrical assemblies.

Key Features

  • Mersen industrial fuse.
  • Manufacturer reference C090438.
  • Designed for electrical circuit protection.
  • Provides overcurrent and fault current interruption.
  • Industrial-grade construction for dependable performance.
  • Suitable for control, distribution and machinery applications.
  • Replaceable protective device for compatible fuse systems.
  • Designed for installation by suitably qualified personnel.

Reliable Protection for Industrial Electrical Equipment

Industrial fuses protect electrical circuits by melting a calibrated fuse element when current exceeds the fuse's permitted operating level. This safely interrupts the circuit and helps prevent excessive heat, conductor damage and failure of connected equipment.

Selecting the correct fuse requires consideration of rated current, system voltage, breaking capacity, operating class, physical dimensions and equipment requirements. A replacement fuse should match the required electrical and mechanical characteristics specified by the equipment manufacturer.

Typical Applications

  • Industrial electrical control panels.
  • Power distribution equipment.
  • Manufacturing and production machinery.
  • Motor control and automation systems.
  • Power conversion equipment.
  • Maintenance and replacement of compatible Mersen fuse installations.

Technical Specifications

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Fuse Indication Striker
Fuse Type Semiconductor
Fuse Class gR
Voltage 750 V
Item number C090438
Catalogue No D122GC75V400TF
Description Square Body High-Speed Fuse Protistor® Size 122 gR 750VDC IEC 400A With Striker Flush ends metric threads
EAN/UPC Code 3605340090017
Rated voltage DC IEC 750 V
Ampere Rating 400 A
RoHS Compliant Yes
AC or DC DC
Speed/Characteristic gR
Fuse Size 122
Mounting Bolted
Melting I2t 50.94 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 74.5 W
HS Code 85361090
Country of Manufacture France

Frequently Asked Questions

What is the Mersen C090438 used for?

The Mersen C090438 is used to provide overcurrent and short-circuit protection within compatible industrial electrical equipment and power systems.

Can the Mersen C090438 be reused after it operates?

No. A fuse is a single-use protective device and must be replaced after its fuse element has operated.

How do I confirm whether this fuse is suitable for my equipment?

Check the required current rating, voltage rating, operating class, breaking capacity, dimensions and connection format against the equipment specification and official Mersen technical documentation.

Can a fuse with a different rating be used as a replacement?

A fuse with a different electrical rating should not be installed unless the replacement has been approved by the equipment manufacturer or a suitably qualified electrical engineer.

Who should install the Mersen C090438?

The fuse should be installed by suitably qualified personnel with the electrical supply isolated and all applicable safety procedures followed.

Trusted Electrical Protection from Mersen

Mersen electrical protection products are used across industrial power, automation and electrical distribution applications to help protect critical equipment and maintain reliable system operation.