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MERSEN FUSE Neutral pole for M40 switches NP40
Mersen NP40 neutral pole accessory designed for compatible M40 disconnect switches on the 40 A switch platform, providing neutral conductor switching and isolation.
£12.39
Why Choose the Mersen NP40 Neutral Pole Accessory?
The Mersen NP40 is a dedicated neutral pole accessory designed for use with compatible Mersen M40 disconnect switches. It enables the switching assembly to accommodate a neutral conductor, making it suitable for electrical systems that require coordinated isolation of the phase conductors and neutral connection.
Developed for industrial control panels, machinery and power distribution equipment, the NP40 provides a practical way to extend a compatible M40 switch configuration. Its purpose-designed construction helps ensure reliable mechanical integration and consistent switching performance within the assembled disconnect system.
The NP40 is rated for the 40 A M40 switch platform and is supplied as an accessory rather than a complete disconnect switch. It should be selected with a compatible Mersen M40 switch and appropriate operating components to create the required electrical isolation arrangement.
Key Advantages
- Purpose-designed neutral pole for Mersen M40 switches.
- Supports electrical systems requiring neutral conductor isolation.
- Designed for straightforward integration with compatible switch assemblies.
- Maintains a compact installation within industrial control panels.
- Suitable for machinery, distribution and automation applications.
- Manufactured by Mersen for reliable mechanical and electrical compatibility.
Key Features
- Mersen disconnect switch accessory.
- Neutral pole configuration.
- Designed for compatible M40 switches.
- Suitable for the 40 A switch platform.
- Provides an additional switched neutral connection.
- Compact design for panel-mounted switch assemblies.
- Industrial-grade construction.
- Supplied as an accessory, not as a complete disconnect switch.
Additional Neutral Isolation for M40 Switches
The Mersen NP40 allows a compatible M40 disconnect switch assembly to include a switched neutral pole. This can be required in installations where the neutral conductor must be disconnected alongside the phase conductors for maintenance, servicing or operational isolation.
Because the NP40 is manufactured specifically for the M40 switch platform, it provides the mechanical compatibility required for a compact and coordinated switch assembly. The complete installation should be designed and installed in accordance with the applicable electrical regulations and equipment requirements.
Typical Applications
- Industrial control panels.
- Machinery disconnect assemblies.
- Electrical distribution panels.
- OEM equipment and automation systems.
- Three-phase systems requiring neutral switching.
- Maintenance and equipment isolation circuits.
Technical Specifications
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| Device Type | Accessory | |
|---|---|---|
| Manufacturer | Mersen | |
| Model | NP40 | |
| Product type | Neutral pole accessory | |
| Compatible switch range | Mersen M40 switches | |
| Compatible current platform | 40 A | |
| Pole function | Neutral conductor switching | |
| Installation type | Switch-mounted accessory | |
| Application | Electrical isolation and disconnect assemblies | |
| Supplied as | Neutral pole only | |
| Suitable for | Industrial control panels and machinery |
Frequently Asked Questions
What is the Mersen NP40 used for?
The NP40 is a neutral pole accessory used with compatible Mersen M40 disconnect switches to provide switching or isolation of a neutral conductor.
Is the NP40 a complete disconnect switch?
No. The NP40 is supplied as a neutral pole accessory and must be installed with a compatible Mersen M40 switch assembly.
Which switches are compatible with the NP40?
The NP40 is designed for use with compatible Mersen M40 switches from the 40 A disconnect switch platform.
Why would a switched neutral pole be required?
A switched neutral may be required where the neutral conductor must be isolated alongside the phase conductors during equipment maintenance or servicing.
Where is the Mersen NP40 typically installed?
It is commonly fitted to disconnect switch assemblies inside industrial control panels, machinery cabinets and electrical distribution equipment.
Trusted by Panel Builders Worldwide
Mersen disconnect switch accessories are used by panel builders, OEM manufacturers and electrical engineers to create compact, dependable isolation assemblies suited to industrial machinery and power distribution applications.
