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MERSEN FUSE MV2 400A/185mm 3P1 1.200.064 1.200.064
The NH fuse-switch disconnector MULTIVERT® Size 2 (400A, 3×1-pole switching) offers safe and reliable circuit protection for demanding industrial applications. Designed for use with a 185mm bus bar system and equipped with M12 screw terminals, it ensures robust, low-resistance connections and efficient power distribution.
£404.39
Why Choose the Mersen C1023203 MULTIVERT Fuse-Switch Disconnector?
The Mersen C1023203 is a high-performance NH vertical fuse-switch disconnector designed for reliable switching, circuit isolation and fuse protection in demanding low-voltage power distribution systems. Part of the Mersen MULTIVERT 400A series, it is engineered for use with NH size 2 fuse-links and provides dependable protection for industrial electrical installations.
This three-pole device features a 3 × 1-pole switching configuration and is designed for direct installation onto a 185 mm busbar system. Its modular vertical construction supports efficient use of space inside switchboards while helping simplify installation, inspection and maintenance.
With a rated current of 400 A and a rated operational voltage of 690 V AC, the C1023203 is suitable for high-capacity feeders and industrial distribution circuits. This model also includes an integrated calibrated 400/5 A current transformer for single-pole measurement, ready-fitted in pole one.
Key Advantages
- Combines fuse protection, switching and circuit isolation in one industrial device.
- 400 A rated current for high-capacity power distribution systems.
- Suitable for AC operating voltages up to 690 V.
- Designed for NH size 2 fuse-links.
- Direct installation onto a 185 mm busbar system.
- Integrated 400/5 A calibrated current transformer supports electrical measurement.
- Modular vertical design helps reduce switchboard installation space.
- High short-circuit current ratings support demanding industrial applications.
Key Features
- Mersen MULTIVERT 400A series.
- NH size 2 vertical fuse-switch disconnector.
- 400 A rated operational current.
- 690 V AC rated operational voltage.
- 3 × 1-pole switching arrangement.
- Three-pole configuration.
- Designed for a 185 mm busbar system.
- M12 screw connection.
- Integrated 400/5 A, 3.75 VA, class 0.5 current transformer.
- 1,000 V rated insulation voltage.
- 12 kV rated impulse withstand voltage.
- RoHS-compliant construction.
Reliable Protection and Measurement for Power Distribution
NH fuse-switch disconnectors protect electrical circuits against excessive current while also providing a practical means of switching and isolating the supply. This combination helps protect cables, switchgear and downstream equipment while allowing maintenance teams to disconnect circuits safely.
The integrated calibrated current transformer distinguishes the C1023203 from standard fuse-switch disconnectors. It enables current measurement from pole one without requiring a separately mounted transformer, helping reduce installation complexity and conserve space within the distribution assembly.
Typical Applications
- Industrial low-voltage distribution boards.
- High-capacity electrical switchgear.
- Busbar-based power distribution systems.
- Motor control centres.
- Manufacturing and process facilities.
- Commercial and infrastructure installations.
- Electrical feeder protection.
- Power monitoring and metering systems.
Technical Specifications
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| 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 | C1023203 | |
| Catalogue No | 1.200.064 | |
| Description | NH fuse-switch disconnector MULTIVERT® Size 2 400A 3x1-Pole switching Bus bar system 185mm Screw M12 ct1P c. | |
| EAN/UPC Code | 9008567008263 | |
| 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 | 3x1-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® 1.200.000 with integrated C.T. 400/5A, 3,75 VA, class 0,5; calibrated, 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 | 4.7 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 | 4.7 kg | |
| Conventional Free Air thermal Current - Solid Links | 630 A |
Frequently Asked Questions
What is the Mersen C1023203 used for?
The C1023203 provides fused circuit protection, switching and isolation in high-capacity industrial low-voltage power distribution systems.
Which fuse size is compatible with this disconnector?
The Mersen C1023203 is designed for NH size 2 fuse-links rated up to 400 A.
Does the C1023203 include a current transformer?
Yes. It includes a calibrated 400/5 A, 3.75 VA, class 0.5 current transformer installed in pole one for single-pole measurement.
Which busbar system is required?
This fuse-switch disconnector is designed for installation onto a 185 mm busbar system.
What is the rated operational voltage?
The C1023203 is rated for AC operation up to 690 V AC, with a rated current of 400 A.
Trusted for High-Capacity Circuit Protection
Mersen MULTIVERT fuse-switch disconnectors provide dependable circuit protection, safe electrical isolation and efficient integration into industrial busbar distribution systems.
