Standard delivery
£8 ex VAT · free over £200UK parcel delivery is £8 ex VAT, or free on orders over £200 ex VAT.
Heavier items may be charged at a weight-based or pallet rate, shown at checkout.
MERSEN FUSE Fourth pole for M80 switches 4P80
Mersen 4P80 genuine fourth pole accessory for compatible 80 A disconnect switches, providing four-pole isolation for industrial power distribution systems.
£25.79
Why Choose the Mersen 4P80 Fourth Pole Accessory?
The Mersen 4P80 is a genuine fourth pole accessory designed for compatible Mersen 63 A and 80 A disconnect switches. It enables a standard three-pole switch disconnector to be converted into a four-pole configuration, providing safe and reliable isolation of an additional conductor in industrial and commercial power distribution systems.
Designed and manufactured by Mersen for seamless compatibility, the 4P80 maintains the mechanical integrity and operational reliability of the original switch assembly. It is ideal for installations requiring four-pole isolation while ensuring straightforward installation and dependable long-term performance.
Suitable for OEM panel builders, switchboard manufacturers and electrical contractors, the Mersen 4P80 provides a practical and reliable solution for expanding compatible disconnect switches to meet modern electrical installation requirements.
Key Advantages
- Genuine Mersen fourth pole conversion accessory.
- Designed for compatible 63 A and 80 A disconnect switches.
- Converts three-pole switches into four-pole configurations.
- Provides reliable isolation of an additional conductor.
- Industrial-grade construction for long service life.
- Simple integration with compatible Mersen switchgear.
Key Features
- Manufacturer: Mersen.
- Model: 4P80.
- Fourth pole accessory for switch disconnectors.
- Suitable for compatible 63 A and 80 A Mersen switches.
- 600 V AC maximum voltage rating.
- Heavy-duty industrial construction.
- Designed for seamless installation on compatible switch assemblies.
- Supports safe four-pole isolation where required.
Designed for Safe Four-Pole Isolation
Where electrical installations require simultaneous isolation of all conductors, a fourth pole accessory provides an efficient solution. The Mersen 4P80 converts compatible disconnect switches into four-pole devices while maintaining reliable switching performance and mechanical durability.
As a genuine Mersen accessory, the 4P80 is engineered for direct compatibility with approved disconnect switches, helping panel builders and electrical engineers deliver safe, compliant and dependable power distribution systems.
Typical Applications
- Industrial power distribution panels.
- Motor control centres.
- Commercial electrical switchboards.
- Machine isolation systems.
- OEM control panels.
- Industrial disconnect switch installations.
Technical Specifications
Tick the specs you need, then view products that match.
| Device Type | Accessory | |
|---|---|---|
| Manufacturer | Mersen | |
| Model | 4P80 | |
| Product type | Fourth pole accessory | |
| Compatible equipment | Mersen M80 disconnect switches and compatible 63 A / 80 A switch disconnectors | |
| Current rating | 80 A | |
| Voltage rating | 600 V AC | |
| Number of poles | Additional fourth pole | |
| Application | Switch disconnector conversion | |
| Installation | Compatible Mersen switchgear | |
| Standards | UL recognised accessory |
Frequently Asked Questions
What is the Mersen 4P80?
The Mersen 4P80 is a genuine fourth pole accessory designed to convert compatible Mersen disconnect switches into four-pole configurations.
What current rating is this accessory designed for?
The 4P80 is intended for compatible Mersen 80 A disconnect switches and selected 63 A switch configurations.
What voltage rating does the accessory support?
The Mersen 4P80 is rated for use in applications up to 600 V AC.
Why would a fourth pole be required?
A fourth pole allows simultaneous isolation of an additional conductor, such as a neutral, where required by system design or electrical installation standards.
Is this an original Mersen accessory?
Yes. The 4P80 is a genuine Mersen accessory designed specifically for compatible Mersen disconnect switches.
Trusted by Electrical Professionals Worldwide
Mersen disconnect switch accessories are widely specified by panel builders, OEMs and electrical engineers for dependable switching performance, safe isolation and long-term reliability in industrial power distribution systems.
