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 MV2 400A/185mm 3P3 1.250.084 1.250.084
Robust NH fuse-switch disconnector accommodating up to 400A across 1×3-pole switching on a 185mm bus bar system, featuring secure M12 screw connections and integrated current transformer.
£340.75
Why Choose the Mersen P1023214 MULTIVERT® Fuse Switch Disconnector?
The Mersen P1023214 is a robust NH fuse switch disconnector with an integrated current transformer, designed for safe switching, circuit protection and current monitoring in industrial low-voltage power distribution systems. Part of the established Mersen MULTIVERT® 400 A series, it is engineered for direct installation onto 185 mm busbar systems in three-pole arrangements.
Designed for use with NH Size 2 fuse links, the P1023214 combines dependable load switching with a factory-fitted 400/5 A Class 1 current transformer in pole one. This integrated measurement capability supports accurate single-pole current monitoring while reducing the need for a separately mounted transformer.
With a rated current of 400 A and a rated operating voltage of 690 V AC, the P1023214 is well suited to industrial switchboards, transformer substations and commercial distribution equipment. Its M12 screw connections, modular construction and compact busbar-mounted format support efficient installation and straightforward maintenance.
Key Advantages
- Heavy-duty NH fuse switch disconnector for industrial power distribution.
- 400 A rated current for high-load electrical applications.
- Integrated 400/5 A Class 1 current transformer for single-pole measurement.
- Designed for direct installation on 185 mm busbar systems.
- Reliable three-pole switching supports safe circuit isolation.
- Modular MULTIVERT® construction simplifies installation and maintenance.
Key Features
- Mersen MULTIVERT® 400 A series.
- 400 A rated operational current.
- 690 V AC rated operating voltage.
- Compatible with NH Size 2 fuse links.
- Three-pole switching configuration.
- Factory-fitted 400/5 A, 3.75 VA, Class 1 current transformer.
- Single-pole measurement with the current transformer fitted in pole one.
- M12 screw connections for secure electrical installation.
- Direct mounting on a 185 mm busbar system.
Reliable Switching with Integrated Current Measurement
NH fuse switch disconnectors combine fuse-based overcurrent protection with a manually operated switching mechanism, allowing electrical circuits to be isolated safely for inspection and maintenance. The Mersen P1023214 is designed to perform these functions within compact industrial busbar assemblies while supporting secure switching under load.
The integrated current transformer provides a proportional 5 A secondary signal from a 400 A primary current, enabling compatible meters, monitoring equipment and protection systems to measure the load on one pole. This combined switching and measurement design can reduce wiring complexity and save valuable space within the distribution cabinet.
Typical Applications
- Industrial switchboards and power distribution panels.
- Transformer substations and cable distribution cabinets.
- Commercial and industrial building distribution systems.
- Motor control centres.
- Energy monitoring and load measurement systems.
- OEM electrical panels and machinery installations.
Technical Specifications
Tick the specs you need, then view products that match.
| Mounting Type | Busbar system 185 mm | |
|---|---|---|
| Current | 400 A | |
| Phase | Three Phase | |
| Poles | 3-pole | |
| Device Type | Fuse switch disconnector | |
| Voltage | 690 V | |
| Item number | P1023214 | |
| Catalogue No | 1.250.084 | |
| Description | NH fuse-switch disconnector MULTIVERT® Size 2 400A 1x3-Pole switching Bus bar system 185mm Screw M12 ct1P | |
| EAN/UPC Code | 9008567000182 | |
| Frequency (Hz) | 50 ... 60 Hz | |
| Rated voltage AC IEC | 690 V | |
| Ampere Rating | 400 A | |
| Utilization Category | AC 23 B @ Ue = AC 400 V; Ie = 400 A AC 22 B @ Ue = AC 500 V; Ie = 400 A AC 21 B @ Ue = AC 690 V; Ie = 400 A | |
| Switchability | 1x3-pole switching | |
| RoHS Compliant | Yes | |
| AC or DC | AC | |
| Short Circuit Current Rating (SCCR) | 120kA@Ue = AC 400 V; Ie = 400 A / 120kA@Ue = AC 500 V; Ie = 400 A / 120kA@Ue = AC 690 V; Ie = 315 A / 100kA@Ue = AC 690 V; Ie = 400 A | |
| Fuse Size | 2 | |
| Design Details | MULTIVERT® 1.250.000 with integrated C.T. 400/5A, 3,75 VA, class 1 for single pole measurement (ready fitted in pole 1) | |
| Number of Poles | 3-Pole | |
| Degree of Pollution | 3 | |
| Rated Impulse Withstand Voltage | 12 kV | |
| Rated Insulation Voltage | 1000 V | |
| Rated SC Withstand | 8 kA / 1 s | |
| Max Power dissipation of Fuse Links Pn | 34 W | |
| Max Power dissipation of Solid Links Pn | 9 W | |
| Power Dissipation by Ith without Fuse-Links | 61 W | |
| Power Dissipation by Ith without Solid Links | 151 W | |
| Rated short circuit making capacity with solid links Icm | 16 kA | |
| Installation Mounting | Bus bar system 185 mm | |
| Product Width | 98 mm | |
| Product Length | 190 mm | |
| Product Height | 685 mm | |
| Sell Pack Quantity | 1 EA | |
| Sell Pack Weight | 4.9 kg | |
| Sell Pack Width | 100 mm | |
| Sell Pack Length | 688 mm | |
| Sell Pack Height | 195 mm | |
| Product group | IEC Fuse Switch Disconnectors | |
| Conventional Free Air thermal Current With Fuse-Links Ith | 400 A | |
| Product Weight | 4.9 kg | |
| Conventional Free Air thermal Current - Solid Links | 630 A |
Frequently Asked Questions
What is the Mersen P1023214 used for?
The P1023214 is used for three-pole switching, fuse protection and single-pole current measurement in industrial low-voltage power distribution systems.
What fuse size is compatible with this switch disconnector?
The unit is designed for use with compatible NH Size 2 fuse links rated up to 400 A.
What current transformer is fitted to the P1023214?
It includes a factory-fitted 400/5 A, 3.75 VA, Class 1 current transformer installed in pole one for single-pole measurement.
Which busbar system does the unit fit?
The P1023214 is designed for direct installation onto a 185 mm busbar system using M12 screw connections.
Where is this fuse switch disconnector typically installed?
It is commonly installed in industrial switchboards, transformer substations, distribution cabinets and energy monitoring systems requiring reliable isolation and current measurement.
Trusted for Industrial Power Distribution
Mersen MULTIVERT® fuse switch disconnectors are widely used by panel builders, electrical engineers and industrial operators to provide dependable switching, fuse protection and measurement functionality in low-voltage power distribution systems.
