Mersen 4P2500 neutral-pole accessory for compatible M2500 UL 98 non-fusible disconnect switches, enabling coordinated four-pole isolation of three phases and neutral.
£1,648.64
The Mersen 4P2500 is a heavy-duty neutral-pole accessory designed for use with compatible Mersen M2500 non-fusible disconnect switches. It enables a three-pole M2500 switch assembly to be configured for four-pole operation where the neutral conductor must be switched and isolated together with the three phase conductors.
Engineered for Mersen's high-current UL 98 disconnect-switch platform, the 4P2500 operates mechanically with the main switch mechanism to provide coordinated isolation. This makes it suitable for large industrial switchboards, power-distribution systems and critical electrical installations requiring simultaneous disconnection of all phases and the neutral.
Designed for the 2500 A M2500 switch platform, this accessory provides a practical modular solution for creating a four-pole isolation arrangement. The 4P2500 is supplied as an accessory component and must be installed as part of a compatible complete Mersen disconnect-switch assembly.
A neutral-pole accessory allows the neutral conductor to be disconnected at the same time as the three phase conductors. This arrangement may be required in generator systems, transfer applications, separately derived supplies and other installations where complete four-pole electrical isolation is specified.
The Mersen 4P2500 is engineered to operate as part of the compatible M2500 disconnect-switch mechanism. Installation should be completed in accordance with Mersen documentation, applicable electrical regulations and the technical requirements of the complete switchboard or power-distribution system.
| Manufacturer | Mersen |
|---|---|
| Model | 4P2500 |
| Part number | 4P2500 |
| Product type | Neutral-pole disconnect-switch accessory |
| Accessory function | Additional switched neutral pole |
| Number of additional poles | 1 |
| Compatible switch platform | Mersen M2500 |
| Compatible switch type | Non-fusible disconnect switch |
| Associated switch current rating | 2500 A |
| Switch standard | UL 98 |
| Resulting configuration | Four-pole disconnect-switch assembly |
| Installation type | Direct attachment to a compatible switch assembly |
| Application | Coordinated phase and neutral isolation |
| Compliance | RoHS |
The Mersen 4P2500 adds a switched neutral pole to a compatible M2500 three-pole disconnect switch, enabling coordinated four-pole isolation.
The accessory is designed for use with the Mersen M2500 UL 98 non-fusible disconnect-switch platform.
The 4P2500 is designed for the Mersen M2500 switch platform, which has an associated current rating of 2500 A.
Yes. It provides an additional switched pole intended to disconnect the neutral conductor alongside the three phase poles.
No. The 4P2500 is an accessory and must be installed as part of a compatible Mersen M2500 non-fusible disconnect-switch assembly.
Mersen disconnect-switch accessories are used by switchboard manufacturers, electrical engineers and industrial contractors to configure dependable isolation systems for demanding high-current power-distribution applications.
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2025 has been a big year for LED Controls, and our blog has expanded accordingly. We've covered a wide range of topics across industrial control and factory automation this year. From core technology explainers and new product releases to panel building best practice...