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MERSEN FUSE Switch.fus 400A 0-2 R side op. M400D30S
Mersen M400D30S 400 A three-pole IEC fused switch disconnector for DIN fuse sizes 0-2, featuring a right-side-operated mechanism for industrial power distribution systems.
£978.89
Why Choose the Mersen M400D30S Side-Operated Fused Switch Disconnector?
The Mersen M400D30S is a heavy-duty IEC fused switch disconnector designed to provide dependable circuit switching, electrical isolation and fuse-based overcurrent protection in industrial low-voltage installations. Rated at 400 A, it is suitable for demanding power distribution applications where robust performance and safe maintenance isolation are required.
This model features a right-side-operated configuration, allowing the operating mechanism and external handle arrangement to be positioned at the side of the switch assembly. This makes the M400D30S particularly suitable for switchboards and control panels where front access, enclosure layout or internal component positioning requires a side-operated solution.
The Mersen M400D30S accommodates DIN fuse sizes 0-2 and uses a three-pole arrangement for three-phase electrical systems. By combining load switching, positive isolation and fuse protection within one assembly, it helps panel builders and electrical engineers create compact, dependable and serviceable distribution equipment.
Key Advantages
- Combines switching, isolation and fuse protection in one assembly.
- 400 A rated current for demanding industrial installations.
- Right-side-operated design for flexible panel layouts.
- Accepts DIN fuse sizes 0-2.
- Three-pole configuration suitable for three-phase circuits.
- Robust construction for switchboards and power distribution equipment.
Key Features
- Mersen IEC fused disconnect switch range.
- 400 A rated operational current.
- Three-pole fused switching arrangement.
- Right-side-operated mechanism.
- Designed for DIN fuse sizes 0-2.
- Manual load switching and secure circuit isolation.
- Suitable for industrial low-voltage distribution systems.
- Optional fourth fusible pole available for compatible M400D assemblies.
Flexible Side-Operated Circuit Isolation
Side-operated fused disconnect switches allow the switching mechanism to be accessed from the side of an enclosure or switchboard arrangement. This configuration can simplify mechanical design where a conventional front-operated switch would conflict with busbars, cable routes or other panel components.
The Mersen M400D30S also provides space for suitable DIN fuse links, enabling the switch to protect cables and connected equipment against excessive current. Its three-pole design simultaneously switches all three phases, helping create a clear and dependable isolation point during inspection, maintenance or equipment replacement.
Typical Applications
- Industrial low-voltage switchboards.
- Power distribution panels.
- Motor control centres.
- Manufacturing and process equipment.
- OEM electrical control assemblies.
- Commercial and infrastructure power systems.
Technical Specifications
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| Current | 400 A | |
|---|---|---|
| Poles | 3-pole | |
| Device Type | Fuse switch disconnector | |
| Manufacturer | Mersen | |
| Model | M400D30S | |
| Reference number | Z1043279 | |
| Product type | IEC fused switch disconnector | |
| Rated current | 400 A | |
| Number of poles | 3 | |
| Fuse format | DIN fuse sizes 0-2 | |
| Operation | Right-side operated | |
| Switch configuration | Three-pole fused switch | |
| Primary function | Switching, isolation and overcurrent protection | |
| Mounting application | Panel / switchboard installation | |
| Weight | Approx. 7.18 kg without packaging |
Frequently Asked Questions
What is the Mersen M400D30S used for?
The M400D30S is used to switch, isolate and provide fuse protection for high-current three-phase circuits in industrial low-voltage distribution systems.
What is the current rating of the M400D30S?
The Mersen M400D30S has a rated current of 400 A.
Which fuse sizes are compatible with the M400D30S?
The switch is designed for DIN fuse sizes 0-2. Fuse links should be selected to match the circuit and installation requirements.
How is the M400D30S operated?
The M400D30S uses a right-side-operated mechanism, making it suitable for enclosures and switchboards requiring side access to the operating handle.
How many poles does the M400D30S have?
The switch has a three-pole configuration for simultaneous switching and isolation of three-phase electrical circuits.
Trusted by Electrical Professionals Worldwide
Mersen fused switch disconnectors are trusted by panel builders, electrical engineers and industrial operators for dependable circuit protection, secure isolation and robust switching performance in demanding power distribution systems.
