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MERSEN FUSE IEC Switch 400A 3p 0+3 pos. M400E03
Mersen M400E03 IEC non-fused three-pole switch disconnector rated at 400 A with 0+3 operating position for industrial low-voltage power distribution and electrical isolation.
£438.57
Why Choose the Mersen M400E03 IEC Switch Disconnector?
The Mersen M400E03 is a heavy-duty IEC non-fused switch disconnector designed to provide safe switching and reliable electrical isolation in industrial low-voltage power distribution systems. Rated at 400 A, it is engineered for demanding applications where dependable manual isolation and long-term operational reliability are essential.
Manufactured as part of the proven Mersen IEC disconnect switch range, the M400E03 combines robust construction with smooth switching operation. It is widely used by panel builders, OEMs and industrial electricians for switchboards, motor control centres and distribution panels requiring a high-performance isolation switch.
Featuring a three-pole configuration with a 0+3 operating position, the M400E03 is designed for three-phase electrical systems. Its non-fused design makes it ideal where overcurrent protection is provided separately, allowing the switch to focus on safe load switching and circuit isolation.
Key Advantages
- Heavy-duty IEC non-fused switch disconnector.
- 400 A rated current for industrial power distribution.
- Three-pole configuration for three-phase systems.
- 0+3 operating position for dependable switching.
- Provides safe manual electrical isolation during maintenance.
- Robust design for switchboards, MCCs and industrial control panels.
Key Features
- Mersen IEC switch disconnector series.
- 400 A rated operational current.
- Three-pole switching arrangement.
- 0+3 operating position.
- Non-fused isolation switch.
- Designed for industrial low-voltage systems.
- Suitable for panel and switchboard mounting.
- Long mechanical and electrical service life.
Reliable Electrical Isolation for Industrial Installations
Switch disconnectors provide a safe method of manually disconnecting electrical equipment from the power supply before inspection, servicing or maintenance. They establish a clearly defined isolation point while allowing equipment to be safely returned to service once work has been completed.
The Mersen M400E03 is specifically designed for industrial environments requiring dependable manual switching of high-current three-phase circuits. Its robust mechanical construction and proven IEC design make it suitable for continuous operation in demanding electrical installations.
Typical Applications
- Main low-voltage switchboards.
- Motor control centres (MCCs).
- Industrial power distribution systems.
- OEM machinery and control panels.
- Commercial electrical installations.
- Manufacturing and processing facilities.
Technical Specifications
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| Mounting Type | Base / panel | |
|---|---|---|
| Current | 400 A | |
| Phase | Three Phase | |
| Poles | 3-pole | |
| Device Type | Fuse switch disconnector | |
| Manufacturer | Mersen | |
| Series | IEC Disconnect Switches | |
| Model | M400E03 | |
| Reference number | P1043201 | |
| Product type | IEC non-fused switch disconnector | |
| Rated current | 400 A | |
| Number of poles | 3 | |
| Operating position | 0+3 | |
| Switch type | Non-fused load break switch | |
| Application | Electrical isolation and switching | |
| Mounting type | Panel / switchboard installation | |
| Suitable systems | Three-phase low-voltage power distribution |
Frequently Asked Questions
What is the Mersen M400E03 used for?
The M400E03 is used to manually switch and safely isolate three-phase electrical circuits in industrial and commercial low-voltage installations.
What is the current rating of the M400E03?
The Mersen M400E03 has a rated operational current of 400 A.
Is the M400E03 a fused switch?
No. The M400E03 is a non-fused IEC switch disconnector. Circuit protection is provided separately using suitable protective devices.
How many poles does the M400E03 have?
The switch features a three-pole configuration for three-phase electrical systems.
Where is the M400E03 typically installed?
It is commonly installed within industrial switchboards, distribution panels, motor control centres and OEM electrical assemblies.
Trusted by Electrical Professionals Worldwide
Mersen IEC switch disconnectors are trusted by panel builders, OEMs and industrial maintenance engineers for dependable electrical isolation, reliable switching performance and long-term durability in demanding power distribution applications.
