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MERSEN FUSE MV1 250A/185mm 3P1 1.120.000 1.120.000

MERSEN FUSE MV1 250A/185mm 3P1 1.120.000 1.120.000

Reliable NH fuse-switch disconnector MULTIVERT® Size 1 with 250A rating, 3×1-pole switching on 185mm bus bar system featuring robust V-terminals for secure cable connection.

SKU: K1023164Alt SKU: 1.120.000MPN: K1023164
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List Price £363.92 ex VAT
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Why Choose the Mersen K1023164 MULTIVERT® NH Fuse Switch Disconnector?

The Mersen K1023164 is a high-performance MULTIVERT® NH Size 1 vertical fuse switch disconnector engineered for industrial low-voltage power distribution. Rated at 250 A and 690 V AC, it is designed for installation on 185 mm busbar systems and features a 3 × 1-pole switching arrangement with V-terminals for V-terminal clamps (Sizes 1, 2 and 3).

Designed in accordance with IEC/EN 60947-3, the K1023164 provides safe switching, isolation and fuse protection in one compact assembly. It accommodates NH Size 1 fuse links manufactured to IEC/EN 60269-2 and VDE 0636-2, making it suitable for demanding industrial, commercial and utility installations.

The MULTIVERT® modular platform enables rapid installation, straightforward maintenance and excellent operator protection. Its compact vertical design maximises panel space while delivering dependable performance in switchboards, feeder pillars, transformer substations and OEM electrical equipment.

Key Advantages

  • Rated at 250 A for industrial low-voltage distribution.
  • Suitable for operation up to 690 V AC.
  • Designed for 185 mm busbar systems.
  • Accepts standard NH Size 1 fuse links.
  • Features V-terminals for V-terminal clamps (Sizes 1–3).
  • Compact vertical construction saves panel space.
  • High short-circuit withstand capability.
  • Designed for safe switching and visible isolation.
  • Modular construction simplifies installation and servicing.

Key Features

  • Manufacturer: Mersen
  • Item number: K1023164
  • Catalogue number: 1.120.000
  • Series: MULTIVERT® 250A
  • Fuse size: NH Size 1
  • Rated current: 250 A
  • Rated operational voltage: 690 V AC
  • Switching arrangement: 3 × 1-pole
  • Busbar spacing: 185 mm
  • Cable termination: V-terminal for V-terminal clamps Sizes 1, 2 and 3
  • Suitable for 50–60 Hz systems.
  • Designed for installation directly onto busbars.

Reliable Protection for Modern Distribution Systems

The Mersen K1023164 combines switching, visible isolation and NH fuse protection within one compact device. Its vertical busbar-mounted design helps reduce wiring complexity while improving accessibility during installation and maintenance. The use of V-terminals provides secure conductor termination when used with compatible V-terminal clamps.

Its high 120 kA short-circuit current rating makes the unit suitable for demanding industrial installations where dependable fault protection and safe operation are essential. The MULTIVERT® modular design also allows easy integration with other accessories within the Mersen distribution system.

Typical Applications

  • Industrial switchboards.
  • Power distribution panels.
  • Transformer substations.
  • Feeder pillars.
  • Motor control centres.
  • OEM electrical equipment.
  • Commercial and industrial distribution systems.

Technical Specifications

Current 250 A
Phase Three Phase
Item number K1023164
Catalogue No 1.120.000
Description NH fuse-switch disconnector MULTIVERT® Size 1 250A 3x1-Pole switching Bus bar system 185mm V-terminal
EAN/UPC Code 9008567000045
Frequency (Hz) 50 ... 60 Hz
Rated voltage AC IEC 690 V
Ampere Rating 250 A
Utilization Category AC 23 B @ Ue = AC 400 V; Ie = 250 A AC 23 B @ Ue = AC 500 V; Ie = 250 A AC 22 B @ Ue = AC 690 V; Ie = 250 A
Switchability 3x1-pole switching
RoHS Compliant Yes
AC or DC AC
Short Circuit Current Rating (SCCR) 120kA@Ue = AC 400 V; Ie = 250 A / 120kA@Ue = AC 500 V; Ie = 250 A / 120kA@Ue = AC 690 V; Ie = 250 A
Fuse Size 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 23 W
Max Power dissipation of Solid Links Pn 2.6 W
Power Dissipation by Ith without Fuse-Links 35 W
Power Dissipation by Ith without Solid Links 90 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 4.38 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 250 A
Product Weight 4.38 kg
Conventional Free Air thermal Current - Solid Links 400 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 K1023164?

The K1023164 is a MULTIVERT® NH Size 1 vertical fuse switch disconnector rated at 250 A and 690 V AC for installation on 185 mm busbar systems.

Which fuse links are compatible?

The unit is designed for NH Size 1 fuse links manufactured in accordance with IEC/EN 60269-2 and VDE 0636-2.

What type of cable termination does it use?

The K1023164 is fitted with V-terminals designed for compatible V-terminal clamps in Sizes 1, 2 and 3.

What is the short-circuit current rating?

The fuse switch disconnector has a rated SCCR of up to 120 kA when used within the manufacturer's specified ratings.

What busbar system is required?

The unit is designed specifically for installation on a 185 mm busbar system.

Trusted by Electrical Professionals Worldwide

Mersen MULTIVERT® fuse switch disconnectors are trusted by utilities, panel builders and industrial engineers for reliable switching, isolation and circuit protection in demanding low-voltage power distribution systems.

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