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MERSEN FUSE IEC Switch 400A 3p R side op. M400E30S
Mersen M400E30S 400 A three-pole IEC non-fused switch disconnector with a right-side-operated mechanism for industrial low-voltage switching and electrical isolation.
£505.16
Why Choose the Mersen M400E30S Side-Operated IEC Switch Disconnector?
The Mersen M400E30S is a heavy-duty IEC non-fused switch disconnector designed for dependable switching and safe isolation of high-current electrical circuits. Rated at 400 A, it is suitable for industrial low-voltage power distribution systems where reliable operation, compact installation and secure maintenance isolation are required.
This model features a right-side-operated mechanism, making it particularly suitable for switchboards and electrical enclosures where the internal layout requires the operating handle to be positioned at the side of the switch. This arrangement gives panel builders greater flexibility when organising busbars, cables and other control components.
The Mersen M400E30S uses a three-pole configuration for simultaneous switching of three-phase circuits. Its non-fused design makes it suitable for systems where overcurrent and short-circuit protection is provided by separate protective devices, while the switch provides dependable load switching and electrical isolation.
Key Advantages
- Heavy-duty IEC non-fused switch disconnector.
- 400 A rated current for industrial power distribution.
- Right-side-operated design for flexible enclosure layouts.
- Three-pole configuration suitable for three-phase circuits.
- Provides dependable electrical isolation during servicing and maintenance.
- Robust construction for switchboards, MCCs and industrial control panels.
Key Features
- Mersen IEC switch disconnector range.
- 400 A rated operational current.
- Three-pole switching arrangement.
- Right-side-operated mechanism.
- Non-fused load-break switch design.
- Designed for industrial low-voltage distribution systems.
- Suitable for panel and switchboard installation.
- Compatible with separately installed circuit protection devices.
Flexible Isolation for Industrial Switchboards
Side-operated switch disconnectors allow the operating mechanism to be positioned at the side of an electrical enclosure. This can simplify switchboard construction where front-mounted equipment, busbars or cable routes make a conventional front-operated arrangement impractical.
The Mersen M400E30S provides simultaneous switching of all three phases, helping establish a dependable isolation point before inspection, servicing or equipment replacement. Separate fuses, circuit breakers or other protective devices should be selected according to the electrical requirements of the installation.
Typical Applications
- Industrial low-voltage switchboards.
- Power distribution panels.
- Motor control centres.
- Manufacturing and process machinery.
- OEM electrical control assemblies.
- Commercial and infrastructure power systems.
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 | |
| Model | M400E30S | |
| Product type | IEC non-fused switch disconnector | |
| Rated current | 400 A | |
| Number of poles | 3 | |
| Operating mechanism | Right-side operated | |
| Switch configuration | Three-pole | |
| Fuse protection | Non-fused | |
| Primary function | Load switching and electrical isolation | |
| Application | Industrial low-voltage power distribution | |
| Mounting type | Panel / switchboard mounting | |
| Applicable standard | IEC 60947-3 |
Frequently Asked Questions
What is the Mersen M400E30S used for?
The M400E30S is used to switch and safely isolate high-current three-phase circuits in industrial low-voltage power distribution systems.
What is the current rating of the M400E30S?
The Mersen M400E30S has a rated operational current of 400 A.
How is the M400E30S operated?
The switch features a right-side-operated mechanism, making it suitable for panels and enclosures requiring side-mounted operation.
Is the M400E30S a fused switch?
No. The M400E30S is a non-fused switch disconnector. Suitable overcurrent and short-circuit protection must be provided separately.
How many poles does the M400E30S have?
The M400E30S has a three-pole configuration for simultaneous switching and isolation of three-phase electrical circuits.
Trusted by Electrical Professionals Worldwide
Mersen IEC switch disconnectors are trusted by panel builders, OEMs and industrial engineers for dependable switching, secure electrical isolation and robust performance in demanding low-voltage power distribution applications.
