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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.
£218.35
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
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| Mounting Type | Busbar system 185 mm | |
|---|---|---|
| Current | 250 A | |
| Phase | Three Phase | |
| Poles | 3-pole | |
| Device Type | Fuse switch disconnector | |
| Voltage | 690 V | |
| 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 |
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.
