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MERSEN FUSE MV3 630A/185mm 3P3 1.350.085 1.350.085
Robust NH fuse-switch disconnector engineered for high-performance and safety in demanding industrial environments, offering reliable operation at 630A within a 1×3-pole configuration.
£434.74
Why Choose the Mersen K1023256 MULTIVERT® NH Fuse Switch Disconnector?
The Mersen K1023256 is a MULTIVERT® NH Size 2 vertical fuse switch disconnector designed for industrial low-voltage power distribution systems. Rated at 400 A and 690 V AC, it is intended for installation on 185 mm busbar systems, providing reliable switching, visible isolation and NH fuse protection in a compact modular assembly.
Manufactured in accordance with IEC/EN 60947-3, the unit is suitable for use with NH Size 2 fuse links manufactured to IEC/EN 60269-2 and VDE 0636-2. The MULTIVERT® platform offers fast installation, high operator safety and straightforward maintenance for demanding industrial applications.
The K1023256 forms part of Mersen's proven MULTIVERT® range, offering dependable performance for switchboards, feeder pillars, transformer substations and OEM electrical equipment.
Key Advantages
- 400 A continuous current rating.
- 690 V AC operational voltage.
- Designed for 185 mm busbar systems.
- Suitable for NH Size 2 fuse links.
- Compact vertical design saves switchboard space.
- Safe load switching and visible isolation.
- High short-circuit withstand capability.
- Modular construction simplifies installation and servicing.
- Suitable for demanding industrial power distribution.
Key Features
- Manufacturer: Mersen
- Item number: K1023256
- Series: MULTIVERT® 400A
- Product type: NH vertical fuse switch disconnector
- Fuse size: NH Size 2
- Rated current: 400 A
- Rated voltage: 690 V AC
- Busbar spacing: 185 mm
- Frequency: 50–60 Hz
- Designed for industrial low-voltage distribution systems.
Reliable Protection for Industrial Installations
The Mersen K1023256 combines switching, isolation and fuse protection in a single compact unit. Designed for modern power distribution systems, it enables straightforward installation on 185 mm busbar assemblies while providing dependable protection against overloads and short-circuit faults.
Its modular MULTIVERT® design allows easy maintenance and compatibility with a wide range of Mersen accessories, making it suitable for both new installations and retrofit projects.
Typical Applications
- Industrial switchboards.
- Power distribution panels.
- Transformer substations.
- Cable distribution cabinets.
- Feeder pillars.
- OEM electrical equipment.
- Commercial and industrial low-voltage distribution.
Technical Specifications
Tick the specs you need, then view products that match.
| Mounting Type | Busbar system 185 mm | |
|---|---|---|
| Current | 630 A | |
| Phase | Three Phase | |
| Poles | 3-pole | |
| Device Type | Fuse switch disconnector | |
| Voltage | 690 V | |
| Item number | K1023256 | |
| Catalogue No | 1.350.085 | |
| Description | NH fuse-switch disconnector MULTIVERT® Size 3 630A 1x3-Pole switching Bus bar system 185mm Screw M12 ct1P | |
| EAN/UPC Code | 9008567000311 | |
| 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 | 1x3-pole switching | |
| RoHS Compliant | Yes | |
| 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 / 80kA@Ue = AC 690 V; Ie = 500 A | |
| Fuse Size | 3 | |
| Design Details | MULTIVERT® 1.350.000 with integrated C.T. 600/5A, 5,00 VA, class 1 for single pole measurement (ready fitted in pole 1) | |
| Number of Poles | 3-Pole | |
| Degree of Pollution | 3 | |
| Rated Impulse Withstand Voltage | 12 kV | |
| Rated Insulation Voltage | 1000 V | |
| Rated SC Withstand | 12.6 kA / 1 s | |
| Max Power dissipation of Fuse Links Pn | 48 W | |
| Max Power dissipation of Solid Links Pn | 17.5 W | |
| Power Dissipation by Ith without Fuse-Links | 95 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 | 5.8 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 | 630 A | |
| Product Weight | 5.8 kg | |
| Conventional Free Air thermal Current - Solid Links | 800 A |
Frequently Asked Questions
What is the Mersen K1023256?
The K1023256 is a MULTIVERT® NH Size 2 vertical fuse switch disconnector for industrial low-voltage power distribution.
Which fuse links are compatible?
The unit is designed for NH Size 2 fuse links manufactured to IEC/EN 60269-2.
What current is it rated for?
The K1023256 has a rated operational current of 400 A.
What busbar system is required?
It is designed for installation on a 185 mm busbar system.
What standards does it comply with?
The fuse switch disconnector is designed in accordance with IEC/EN 60947-3 and supports NH fuse links manufactured to IEC/EN 60269-2.
Trusted by Electrical Professionals Worldwide
Mersen MULTIVERT® fuse switch disconnectors are trusted by utilities, OEM manufacturers and panel builders for dependable switching, isolation and circuit protection in demanding low-voltage electrical installations.
