Call Us Today
01706 242050
Trade Portal
MERSEN FUSE MV1 250A/185mm 3P3 1.170.600 1.170.600

MERSEN FUSE MV1 250A/185mm 3P3 1.170.600 1.170.600

Reliable and efficient NH fuse-switch disconnector MULTIVERT® Size 1 rated for 250A with 1×3-pole switching on 185mm bus bar system featuring V-terminal V-clamp connections.

SKU: K1023187Alt SKU: 1.170.600MPN: K1023187
Price
List Price £394.94 ex VAT
Your Price (ex VAT)
£394.94
Manufacturer Lead Time Please contact us for a delivery time before you order
Get the best trade prices Trade exclusive

Create a trade account to unlock exclusive pricing, special offers and more.

Sign up for a trade account Quick & easy setup
SUBTOTAL (EX VAT) £394.94
Trade pricing is personalised to your account

Manufacturer Lead Time

£394.94

Why Choose the Mersen K1023187 MULTIVERT® NH Fuse Switch Disconnector?

The Mersen K1023187 is a high-performance MULTIVERT® NH Size 1 vertical fuse switch disconnector designed for industrial low-voltage power distribution. Rated at 250 A and 690 V AC, it is intended for installation on 185 mm busbar systems and features a 1 × 3-pole switching arrangement with V-terminals supplied complete with three terminal clamps (Sizes 1, 2 and 3).

Manufactured in accordance with IEC/EN 60947-3, the K1023187 combines safe switching, visible isolation and NH fuse protection in a compact modular design. 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.

Unlike the standard V-terminal version, this model is supplied with three compatible V-terminal clamps, simplifying installation and reducing the need to source additional connection hardware. The compact vertical construction maximises switchboard space while maintaining excellent accessibility for installation and maintenance.

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.
  • Supplied with three V-terminal clamps for simplified installation.
  • Compact vertical design helps conserve switchboard space.
  • High short-circuit current rating of up to 120 kA.
  • Designed for safe switching and visible isolation.
  • Modular construction simplifies servicing and future expansion.

Key Features

  • Manufacturer: Mersen
  • Item number: K1023187
  • Catalogue number: 1.170.600
  • Series: MULTIVERT® 250A
  • Fuse size: NH Size 1
  • Rated current: 250 A
  • Rated operational voltage: 690 V AC
  • Switching arrangement: 1 × 3-pole switching
  • Busbar spacing: 185 mm
  • Cable termination: V-terminal with 3 terminal clamps (Sizes 1, 2 and 3)
  • Suitable for 50–60 Hz systems.
  • Designed for direct busbar installation.

Reliable Switching and Secure Cable Connections

The Mersen K1023187 integrates switching, visible isolation and NH fuse protection into a compact vertical assembly. The supplied V-terminal clamps provide secure cable termination without requiring separate accessories, helping to reduce installation time while maintaining reliable electrical performance.

With a short-circuit current rating of up to 120 kA, the unit is suitable for demanding industrial environments where high fault levels and dependable switching performance are required. The MULTIVERT® modular platform also supports straightforward maintenance and future expansion using compatible Mersen accessories.

Typical Applications

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

Technical Specifications

Current 250 A
Phase Three Phase
Item number K1023187
Catalogue No 1.170.600
Description NH fuse-switch disconnector MULTIVERT® Size 1 250A 1x3-Pole switching Bus bar system 185mm V-terminal V-clamp
EAN/UPC Code 9008567008478
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 1x3-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 4.6 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 4.6 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 K1023187?

The K1023187 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 cable termination is supplied?

The K1023187 includes V-terminals supplied with three compatible terminal clamps for conductor connection.

What is the short-circuit current rating?

The fuse switch disconnector offers a rated short-circuit current rating of up to 120 kA when installed 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, OEM manufacturers and panel builders for dependable switching, circuit isolation and fuse protection in industrial low-voltage power distribution systems.

● Service Agreements

Credit Accounts

Our service agreements are built to support long term procurement relationships. By working closely with engineering teams and procurement departments, we help streamline purchasing processes while ensuring consistent access to critical components and sourcing support when it matters most.

 Priority sourcing and supply support

 Flexible payment terms for qualifying organisations

 Support for engineering, maintenance, and operations

500 +

Stock lines ready to ship

1,000 +

Same day dispatches

3500 +

Customers supported

28 

Trusted Manfacturers

● frequently asked questions

Common questions about our products and support

 

At Led Controls Ltd we help engineers source the right automation and control gear with confidence. below are quick answers to what we are asked most often.

What product ranges do you supply

We supply all leading manfacturers in our industry. we offer next day delivery on most poplour products. 

Can you help specify the correct part?

Your content goes here. Edit or remove this text inline or in the module Content settings. You can also style every aspect of this content in the module Design settings and even apply custom CSS to this text in the module Advanced settings.

Do you have stock for urgent orders?

Your content goes here. Edit or remove this text inline or in the module Content settings. You can also style every aspect of this content in the module Design settings and even apply custom CSS to this text in the module Advanced settings.

What are your delivery times and costs?

Your content goes here. Edit or remove this text inline or in the module Content settings. You can also style every aspect of this content in the module Design settings and even apply custom CSS to this text in the module Advanced settings.

What about warranties, returns and faulty items?

Your content goes here. Edit or remove this text inline or in the module Content settings. You can also style every aspect of this content in the module Design settings and even apply custom CSS to this text in the module Advanced settings.

● latest blog

Discover  our latest insights and
expert advice

From a Simple Idea to Small Business of the Year: The LED Controls Story So Far…

From a Simple Idea to Small Business of the Year: The LED Controls Story So Far…

by | Aug 11, 2026 |

LED Controls is a specialist distributor of factory automation and industrial controls, supplying OEMs, machine builders, panel builders and end users throughout the UK and worldwide. As a trusted UK distributor for many of the world’s leading automation manufacturers, we provide industrial control products, technical expertise and bespoke automation solutions backed by outstanding customer service.

LED Controls: Danfoss Drives Authorised Partner

LED Controls: Danfoss Drives Authorised Partner

by | Jan 17, 2026 |

2025 has been a big year for LED Controls, and our blog has expanded accordingly. We've covered a wide range of topics across industrial control and factory automation this year. From core technology explainers and new product releases to panel building best practice...

LED Controls: Your Complete Control Panel Solution

LED Controls: Your Complete Control Panel Solution

by | Jan 17, 2026 |

2025 has been a big year for LED Controls, and our blog has expanded accordingly. We've covered a wide range of topics across industrial control and factory automation this year. From core technology explainers and new product releases to panel building best practice...