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MERSEN FUSE MV3 1000A/185mm 3P3 1.712.900 1.712.900

MERSEN FUSE MV3 1000A/185mm 3P3 1.712.900 1.712.900

The NH fuse-switch disconnector MULTIVERT® provides reliable and safe switching and protection for electrical distribution systems up to 1000A. Its robust 3×1-pole design ensures secure isolation and efficient handling of high power loads, supporting operational safety and maintenance flexibility.

SKU: N1023121Alt SKU: 1.712.900MPN: N1023121
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List Price £1,224.86 ex VAT
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Why Choose the Mersen N1023121 MULTIVERT® 1000A Main Incomer?

The Mersen N1023121 is a heavy-duty MULTIVERT® NH vertical main incomer fuse-switch disconnector engineered for high-current industrial power distribution systems. Also identified by catalogue number 1.712.900, this robust unit is rated at 1000 A and is supplied with factory-fitted 1000 A NH solid links for use as a main incomer on low-voltage switchboards. Designed for direct installation onto 185 mm busbar systems, it provides dependable isolation and switching for demanding industrial applications.

Featuring a 3 × single-pole switching arrangement with secure M12 screw cable terminations, the N1023121 enables reliable connection of large conductors while maintaining a compact installation footprint. The MULTIVERT® modular design allows fast installation, easy maintenance and a high level of operator protection throughout the service life of the equipment.

Rated for operation up to 690 V AC at 50/60 Hz, the N1023121 is ideally suited for industrial switchboards, infrastructure projects, commercial buildings and OEM power-distribution assemblies requiring dependable high-current isolation.

Key Advantages

  • 1000 A rated current for high-power distribution systems.
  • Supplied with factory-fitted 1000 A NH solid links.
  • Designed for direct installation onto 185 mm busbar systems.
  • 3 × single-pole switching configuration.
  • M12 screw cable terminations provide secure conductor connections.
  • Compact MULTIVERT® modular construction.
  • Fast installation and simplified maintenance.
  • Suitable for demanding industrial and commercial switchboards.

Key Features

  • Mersen MULTIVERT® 1000A Main Incomer.
  • 1000 A rated operational current.
  • 690 V AC operating voltage.
  • 50/60 Hz operation.
  • 3 × single-pole switching.
  • 185 mm busbar mounting.
  • M12 multiple cable termination.
  • Factory fitted with 1000 A NH solid links.
  • Rated insulation voltage 1000 V.
  • Designed for industrial low-voltage distribution systems.

Reliable Main Incomer for High-Current Distribution

The Mersen N1023121 is specifically designed to act as the primary incoming switching device within industrial switchboards. Its factory-installed solid links provide a dependable means of isolation while supporting high-current distribution up to 1000 A.

The MULTIVERT® modular system enables quick installation onto standard 185 mm busbars while allowing easy maintenance and future expansion. Secure M12 cable terminations accommodate large conductors, making the unit ideal for demanding industrial power distribution applications.

Typical Applications

  • Industrial low-voltage switchboards.
  • Main incoming power distribution.
  • Commercial electrical installations.
  • Motor control centres.
  • Infrastructure power systems.
  • OEM switchboard manufacturing.
  • Process industry distribution panels.
  • Utility and energy installations.

Technical Specifications

Current 1000 A
Phase Three Phase
Item number N1023121
Catalogue No 1.712.900
Description NH fuse-switch disconnector MULTIVERT® Size 1000A 3x1-Pole switching Screw M12
EAN/UPC Code 9008567001301
Frequency (Hz) 50 ... 60 Hz
Rated voltage AC IEC 690 V
Ampere Rating 1000 A
Utilization Category AC 21 B @ Ue = AC 400 V; Ie = 1000 A AC 20 B @ Ue = AC 690 V; Ie = 1000 A
Switchability 3x1-pole switching
RoHS Compliant Yes
AC or DC AC
Design Details with ready fitted NHsolid links 1000 A
Number of Poles 3-Pole
Degree of Pollution 3
Rated Impulse Withstand Voltage 8 kV
Rated Insulation Voltage 1000 V
Max Power dissipation of Solid Links Pn 12 W
Rated short circuit making capacity with solid links Icm 15 kA
Installation Mounting Bus Bar Installation
Product Width 98 mm
Product Length 190 mm
Product Height 685 mm
Sell Pack Quantity 1 EA
Sell Pack Weight 11.5 kg
Sell Pack Width 230 mm
Sell Pack Length 781 mm
Sell Pack Height 125 mm
Product group IEC Fuse Switch Disconnectors
Product Weight 11.5 kg
Conventional Free Air thermal Current - Solid Links 1000 A
HS Code 85365080
Country of Manufacture Hungary
Poles 3-pole
Device Type Fuse switch disconnector
Voltage 690 V

Frequently Asked Questions

What is the Mersen N1023121 used for?

The N1023121 is a 1000 A MULTIVERT® main incomer fuse-switch disconnector used to isolate and distribute incoming power within industrial low-voltage switchboards.

Does the N1023121 include fuse-links?

No. This version is supplied with factory-fitted 1000 A NH solid links rather than fuse-links.

What is the current rating?

The unit has a rated operational current of 1000 A.

Which busbar system is it designed for?

The N1023121 is designed for direct installation onto a standard 185 mm busbar system.

What type of cable termination does it use?

The unit features secure M12 multiple screw cable terminations for high-current conductor connections.

Trusted High-Current Main Incomer Solution

Mersen MULTIVERT® main incomer fuse-switch disconnectors are trusted by switchboard manufacturers, electrical contractors and industrial engineers to provide dependable isolation, high-current performance and efficient installation in critical low-voltage power distribution systems.

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