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MERSEN FUSE MV3 630A/185mm 4P4 4.350.000 4.350.000
Robust NH fuse-switch disconnector engineered for high-reliability in demanding industrial applications, supporting up to 630A with safe, visible isolation and a 1×4-pole configuration.
£441.91
Why Choose the Mersen G1056005 NH Fuse Switch Disconnector?
The Mersen G1056005 is a high-capacity NH vertical fuse switch disconnector engineered for safe switching, isolation and circuit protection in demanding low-voltage power distribution systems. Part of the innovative Mersen MULTIVERT® 630A 4P series, it provides simultaneous switching of three phase conductors and the neutral conductor in a compact in-line design.
The G1056005 features a four-pole 3P+N configuration that enables all-pole network disconnection. Its neutral pole is designed to close before and open after the phase conductors, supporting safe operation in TT, TN-S and TN-C-S electrical networks. The unit mounts directly onto a 185 mm busbar system and has a compact overall width of approximately 100 mm.
With a rated current of 630 A and a rated operating voltage of up to 690 V AC, the Mersen G1056005 is suitable for NH Size 3 fuse links. Its M12 bolted cable connections, robust construction and high short-circuit withstand capability make it ideal for industrial distribution boards, renewable energy systems and cable distribution cabinets.
Key Advantages
- High-performance four-pole NH fuse switch disconnector.
- 630 A rated current for demanding power distribution systems.
- 3P+N switching enables all-pole network isolation.
- Neutral pole closes earlier and opens later than the phase conductors.
- Compatible with NH Size 3 fuse links.
- Direct installation onto 185 mm busbar systems.
- Compact 100 mm overall width conserves switchboard space.
- Lockable and sealable in the normal operating position.
Key Features
- Mersen MULTIVERT® 630A 4P series.
- 630 A rated operating current.
- 690 V AC rated operating voltage.
- 50–60 Hz operating frequency.
- One four-pole switching mechanism.
- Three phase poles plus neutral.
- Designed for NH Size 3 fuse links.
- M12 bolted cable connections.
- 1,000 V rated insulation voltage.
- 8 kV rated impulse withstand voltage.
- Touch protection up to IP30 with the central cover fitted.
- Front-accessible voltage measurement points.
Reliable Four-Pole Protection for Power Distribution
The Mersen G1056005 combines switching, electrical isolation and fuse-based overcurrent protection within a single compact assembly. Its four-pole configuration disconnects the neutral conductor together with all three phases, helping meet the requirements of electrical networks where complete all-pole isolation is necessary.
When fitted with suitable NH Size 3 fuse links, the unit helps protect cables and equipment against overloads and short circuits. Its direct busbar mounting, compact width and front-accessible measurement points simplify the construction, operation and maintenance of modern low-voltage distribution boards.
Typical Applications
- Industrial low-voltage distribution boards.
- Cable distribution cabinets.
- Renewable energy installations.
- Commercial and industrial switchboards.
- TT, TN-S and TN-C-S network systems.
- Main incoming power distribution assemblies.
- Manufacturing and processing facilities.
- Infrastructure and utility installations.
Technical Specifications
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| Mounting Type | Busbar system 185 mm | |
|---|---|---|
| Current | 630 A | |
| Phase | Three Phase | |
| Poles | 3-pole + N | |
| Device Type | Fuse switch disconnector | |
| Voltage | 690 V | |
| Item number | G1056005 | |
| Catalogue No | 4.350.000 | |
| Description | NH fuse-switch disconnector MULTIVERT® Size 3 630A 1x4-pole switching Bus bar system 185mm Screw M12 bolt | |
| EAN/UPC Code | 9008567013762 | |
| Frequency (Hz) | 50 ... 60 Hz | |
| Rated voltage AC IEC | 690 V | |
| Ampere Rating | 630 A | |
| Utilization Category | AC 23 B @ Ue = AC 400 V; Ie = 630 A AC 22 B @ Ue = AC 500 V; Ie = 630 A AC 21 B @ Ue = AC 690 V; Ie = 630 A | |
| Switchability | 1x4-pole switching | |
| AC or DC | AC | |
| Short Circuit Current Rating (SCCR) | 80kA@Ue = AC 400 V; Ie = 630 A / 80kA@Ue = AC 500 V; Ie = 630 A / 50kA@Ue = AC 690 V; Ie = 500 A | |
| Fuse Size | 3 | |
| Design Details | 4P (3P+N) | |
| Number of Poles | 3-Pole+N | |
| Degree of Pollution | 3 | |
| Rated Impulse Withstand Voltage | 8 kV | |
| Rated Insulation Voltage | 1000 V | |
| Rated SC Withstand | 12 kA / 1 s | |
| Max Power dissipation of Fuse Links Pn | 48 W | |
| Max Power dissipation of Solid Links Pn | 17 W | |
| Power Dissipation by Ith without Fuse-Links | 147 W | |
| Power Dissipation by Ith without Solid Links | 243 W | |
| Rated short circuit making capacity with solid links Icm | 16 kA | |
| Installation Mounting | Bus bar system 185 mm | |
| Product Width | 100 mm | |
| Product Length | 186 mm | |
| Product Height | 885 mm | |
| Sell Pack Quantity | 1 EA | |
| Sell Pack Weight | 8.9 kg | |
| Sell Pack Width | 200 mm | |
| Sell Pack Length | 705 mm | |
| Sell Pack Height | 105 mm | |
| Product group | IEC Fuse Switch Disconnectors | |
| Conventional Free Air thermal Current With Fuse-Links Ith | 630 A | |
| Product Weight | 8.9 kg | |
| Conventional Free Air thermal Current - Solid Links | 800 A | |
| HS Code | 85365080 | |
| Country of Manufacture | Hungary |
Frequently Asked Questions
What is the Mersen G1056005 used for?
The G1056005 is used for four-pole switching, safe isolation and fuse protection in industrial and commercial low-voltage power distribution systems.
What fuse size is compatible with the G1056005?
The unit is designed for NH Size 3 fuse links rated up to 630 A.
Does the G1056005 switch the neutral conductor?
Yes. It has a 3P+N four-pole configuration, with the neutral pole closing before and opening after the three phase conductors.
What voltage can this fuse switch disconnector support?
The Mersen G1056005 has a rated operating voltage of up to 690 V AC.
How is the G1056005 installed?
It mounts directly onto a 185 mm busbar system and uses M12 bolted connections for secure cable termination.
Trusted for High-Current Power Distribution
Mersen MULTIVERT® fuse switch disconnectors are trusted by panel builders, electrical engineers and industrial operators for dependable circuit protection, safe isolation and efficient integration into modern low-voltage distribution systems.
