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MERSEN FUSE MV2 400A/185mm 3P1 1.220.900
NH fuse-switch disconnector MULTIVERT® Size 2 400A 3×1-Pole switching Bus bar system 185mm V-terminal x2 offers reliable, high-capacity circuit protection with 400A rating and 3-pole switching for industrial applications.
£400.48
Why Choose the Mersen B1023202 MULTIVERT® NH Fuse Switch Disconnector?
The Mersen B1023202 is a heavy-duty MULTIVERT® NH vertical fuse switch disconnector designed for safe switching, isolation and overcurrent protection in industrial low-voltage power distribution systems. Manufactured under catalogue number 1.220.900, this three-pole unit is designed for NH Size 2 fuse links with a rated current of 400 A and a maximum operating voltage of 690 V AC.
Part of the MULTIVERT® 400 A range, the B1023202 is designed for installation on 185 mm busbar systems. This version features V-terminal cable connections with two terminals per phase, allowing greater flexibility when connecting multiple conductors while maintaining secure electrical terminations. Its compact installation depth of approximately 123 mm helps maximise available space within switchboards and distribution cabinets.
The modular MULTIVERT® system provides straightforward installation, excellent operator protection during maintenance and full compatibility with NH Size 2 fuse links manufactured to IEC/EN 60269-2 and VDE 0636-2, making it ideal for OEM equipment, motor control centres and industrial distribution panels.
Key Advantages
- Designed for NH Size 2 fuse links.
- 400 A rated current for demanding industrial applications.
- 690 V AC operating voltage.
- Three-pole switching for dependable isolation.
- Designed for 185 mm busbar systems.
- Two V-terminals per phase for flexible cable connections.
- Compact installation depth for efficient switchboard layouts.
Key Features
- Mersen MULTIVERT® 400 A series.
- Three-pole NH fuse switch disconnector.
- Compatible with NH Size 2 fuse links.
- 400 A continuous current rating.
- 690 V AC rated operating voltage.
- 185 mm busbar mounting.
- V-terminal cable connection with two terminals per phase.
- Compact modular construction.
Reliable Switching for Industrial Power Distribution
NH fuse switch disconnectors combine manual circuit isolation with dependable overcurrent protection, making them essential components in industrial electrical distribution systems. Their robust construction enables safe switching under load while allowing rapid fuse replacement and simplified maintenance.
The Mersen B1023202 combines the proven MULTIVERT® modular platform with flexible dual V-terminal cable connections, making it particularly suitable for installations requiring multiple outgoing conductors while maintaining compact switchboard layouts and reliable electrical performance.
Typical Applications
- Industrial switchboards.
- Low-voltage power distribution systems.
- Motor control centres.
- OEM machinery.
- Industrial automation panels.
- Electrical infrastructure installations.
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 | B1023202 | |
| Catalogue No | 1.220.900 | |
| Description | NH fuse-switch disconnector MULTIVERT® Size 2 400A 3x1-Pole switching Bus bar system 185mm V-terminal x2 | |
| EAN/UPC Code | 9008567000915 | |
| 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 | |
| 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 | 5.45 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 | 5.45 kg | |
| Conventional Free Air thermal Current - Solid Links | 630 A | |
| HS Code | 85365080 | |
| Country of Manufacture | Hungary |
Frequently Asked Questions
What is the Mersen B1023202 used for?
The B1023202 is a three-pole NH fuse switch disconnector designed for switching, isolation and overcurrent protection in industrial low-voltage electrical distribution systems.
Which fuse size does it accept?
It is designed for NH Size 2 fuse links.
What is the rated current?
The Mersen B1023202 has a 400 A continuous current rating.
Which busbar system is it designed for?
The unit is designed for installation on a 185 mm busbar system.
What makes this model different?
The B1023202 features two V-terminal cable connections per phase, allowing greater flexibility when connecting multiple conductors to the fuse switch disconnector.
Trusted for Industrial Electrical Distribution
Mersen MULTIVERT® NH fuse switch disconnectors are trusted by electrical engineers and panel builders worldwide for reliable switching, safe isolation and dependable circuit protection in industrial power distribution systems.
