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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.
£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
Tick the specs you need, then view products that match.
| Fuse Indication | Striker | |
|---|---|---|
| Fuse Type | Semiconductor | |
| Fuse Class | gR | |
| Voltage | 750 V | |
| 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 |
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.
