MERSEN FUSE CC 7,5 GRC 122 EF 0400 D122GC75V400EF

MERSEN FUSE CC 7,5 GRC 122 EF 0400 D122GC75V400EF

Protistor® high-speed fuse for DC applications up to 750V with 400A rating, gR characteristic, integrated striker indication, and open slot blade terminals.

SKU: L089388Alt SKU: D122GC75V400EFMPN: L089388
Price
List Price £420.71 ex VAT
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Manufacturer Lead Time

£420.71

Why Choose the Mersen L089388 Industrial Fuse?

The Mersen L089388 is an industrial electrical fuse intended to provide dependable overcurrent and short-circuit protection within compatible electrical equipment, machinery and power distribution systems. As a replaceable circuit protection component, it is designed to interrupt abnormal current before excessive heat and fault energy can cause more extensive damage to conductors and connected equipment.

Manufactured under the Mersen brand, the L089388 is suitable for maintenance, repair and replacement applications where the original fuse reference must be matched precisely. Correct fuse selection supports reliable system operation, effective fault protection and reduced risk of damage to valuable industrial electrical components.

Detailed public technical data for the Mersen L089388 fuse could not be reliably verified. Its rated current, voltage, operating class, breaking capacity, dimensions, terminal arrangement and approved applications must therefore be confirmed from the original fuse markings, equipment manual or official Mersen documentation before ordering or installation.

Key Advantages

  • Provides overcurrent and short-circuit protection for compatible equipment.
  • Manufactured by Mersen, a specialist in electrical protection products.
  • Helps protect conductors, switching equipment and connected components.
  • Suitable for industrial maintenance and replacement requirements.
  • Helps reduce the risk of extensive equipment damage during electrical faults.
  • Supports dependable operation when correctly selected and installed.

Key Features

  • Mersen industrial electrical fuse.
  • Manufacturer reference L089388.
  • Designed to interrupt excessive electrical current.
  • Single-use circuit protection component.
  • Suitable for compatible industrial fuse holders and assemblies.
  • Replaceable component for electrical maintenance applications.
  • Electrical and mechanical compatibility must be verified before use.
  • Intended for installation by suitably qualified electrical personnel.

Dependable Protection for Industrial Electrical Equipment

Industrial fuses contain a calibrated element designed to melt when current exceeds a defined level. Opening the circuit helps restrict fault energy and reduces the thermal and mechanical stress placed on cables, switchgear, semiconductor devices and other connected components.

A replacement fuse must be selected using its complete electrical and mechanical specification rather than its physical appearance alone. Rated current, voltage, operating characteristic, breaking capacity, dimensions and terminal configuration must all correspond with the requirements of the protected equipment.

Typical Applications

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

Technical Specifications

Item number L089388
Catalogue No D122GC75V400EF
Description Square Body High-Speed Fuse Protistor® Size 122 gR 750VDC IEC 400A With Striker Open Slot Blades
EAN/UPC Code 3605340082692
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 Copper
Connection/Terminal Type Open Slot Blades
Product Width 59 mm
Product Length 206.4 mm
Product Height 63 mm
Sell Pack Quantity 1 EA
Sell Pack Weight 1.3 kg
Sell Pack Width 130 mm
Sell Pack Length 264 mm
Sell Pack Height 95 mm
Product group Semiconductor Protection Fuses
Body/Insulating Material Ceramic
Product Weight 1.3 kg
Power Dissipation at Rated Current Value 74.5 W
HS Code 85361090
Country of Manufacture France
Fuse Type Semiconductor
Fuse Class gR
Voltage 750 V

Frequently Asked Questions

What is the Mersen L089388 used for?

The Mersen L089388 is intended to provide overcurrent and short-circuit protection within compatible industrial electrical equipment and power systems.

What are the electrical ratings of the L089388?

Reliable public ratings could not be confirmed. Check the original fuse markings, equipment documentation or official Mersen technical information for the rated current, voltage, operating class and breaking capacity.

Can the Mersen L089388 be reused after operating?

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

How can I confirm that this fuse is compatible with my equipment?

Compare its complete manufacturer reference, current rating, voltage rating, operating characteristic, breaking capacity, dimensions and terminal arrangement with the original fuse and equipment specification.

Can I replace it with a fuse that has a different rating?

A differently rated fuse should only be used when the alternative has been formally approved by the equipment manufacturer or a suitably qualified electrical engineer.

Who should install the Mersen L089388?

Installation should be completed by suitably qualified electrical personnel after the equipment has been safely isolated and appropriate electrical safety procedures have been followed.

Trusted Electrical Protection from Mersen

Mersen circuit protection products are used across industrial power, automation and electrical distribution applications where dependable fault protection and operational reliability are essential.

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