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MERSEN FUSE MV2 400A/185mm 3P3 1.270.900 1.270.900
Robust NH fuse-switch disconnector engineered for reliable, high-capacity switching and protection in demanding industrial environments. Features dual V-terminals and optimised for 185mm bus bar systems.
£300.59
Why Choose the Mersen L1023211 MULTIVERT® Fuse Switch Disconnector?
The Mersen L1023211 is a heavy-duty NH Size 2 vertical fuse switch disconnector from the MULTIVERT® 400A series, engineered for safe switching, isolation and protection of low-voltage power distribution systems. Designed for installation on a standard 185 mm busbar system, it features a 1 × 3-pole switching configuration with dual V-terminals per phase, making it ideal for installations requiring multiple outgoing conductors.
Rated at 400 A and 690 V AC, the L1023211 is designed for use with NH Size 2 fuse links manufactured in accordance with IEC/EN 60269-2. Its modular MULTIVERT® construction enables rapid installation, excellent accessibility during maintenance and reliable long-term performance in demanding industrial environments.
The innovative 2 V-terminal connections per phase provide greater flexibility when terminating multiple cables or busbar links, reducing the need for additional distribution blocks while maintaining a neat and professional switchboard layout.
Key Advantages
- High-capacity 400 A NH fuse switch disconnector.
- Designed for 185 mm busbar systems.
- Dual V-terminals per phase simplify multiple cable terminations.
- 1 × 3-pole switching provides simultaneous isolation of all phases.
- Suitable for NH Size 2 fuse links.
- Excellent short-circuit withstand capability up to 120 kA.
- Compact MULTIVERT® design optimises switchboard space.
- Quick installation and straightforward maintenance.
Key Features
- Mersen MULTIVERT® 400A series.
- Model: L1023211.
- Catalogue number: 1.270.900.
- 400 A rated current.
- 690 V AC rated operational voltage.
- NH Size 2 fuse compatibility.
- 1 × 3-pole switching configuration.
- Dual V-terminals (2 terminals per phase).
- 185 mm busbar mounting.
- Compact installation depth.
High-Capacity Switching for Modern Distribution Systems
The Mersen L1023211 combines safe load switching, circuit isolation and NH fuse protection in a compact assembly suitable for industrial switchboards and commercial electrical installations. Its dual V-terminal arrangement allows multiple cable terminations directly at the switch, simplifying wiring and reducing installation time.
Designed as part of the modular MULTIVERT® platform, the unit offers dependable operation, high levels of operator safety and easy integration into modern power distribution equipment while complying with IEC 60947-3 requirements.
Typical Applications
- Industrial switchboards.
- Power distribution panels.
- Motor control centres.
- Commercial electrical installations.
- Utility substations.
- OEM switchgear assemblies.
- Renewable energy distribution systems.
- Large industrial power distribution networks.
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 | L1023211 | |
| Catalogue No | 1.270.900 | |
| Description | NH fuse-switch disconnector MULTIVERT® Size 2 400A 1x3-Pole switching Bus bar system 185mm V-terminal x2 | |
| EAN/UPC Code | 9008567002421 | |
| 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 | |
| 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 | 6.08 kg | |
| Sell Pack Width | 230 mm | |
| Sell Pack Length | 781 mm | |
| Sell Pack Height | 125 mm | |
| Product group | IEC Fuse Switch Disconnectors | |
| Conventional Free Air thermal Current With Fuse-Links Ith | 400 A | |
| Product Weight | 6.08 kg | |
| Conventional Free Air thermal Current - Solid Links | 630 A | |
| HS Code | 85365080 | |
| Country of Manufacture | Hungary |
Frequently Asked Questions
What is the Mersen L1023211 used for?
The Mersen L1023211 is used for switching, isolating and protecting low-voltage electrical circuits in industrial and commercial power distribution systems.
What is the current rating?
The L1023211 has a rated operational current of 400 A.
Which fuse size is compatible?
The unit is designed for NH Size 2 fuse links manufactured to IEC/EN 60269-2.
What makes this model different?
The L1023211 features two V-terminal connections per phase, making it ideal for applications requiring multiple outgoing cable terminations.
What busbar system is required?
The switch disconnector is designed for installation on a standard 185 mm busbar system.
Trusted Power Distribution Technology from Mersen
Mersen MULTIVERT® fuse switch disconnectors are trusted by electrical engineers, panel builders and utility operators worldwide for delivering dependable circuit protection, safe isolation and reliable long-term performance in demanding low-voltage power distribution systems.
