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MERSEN FUSE MV3 630A/185mm 3P1 1.300.000 1.300.000
NH fuse-switch disconnector MULTIVERT® Size 3 630A 3×1-Pole switching Bus bar system 185mm Screw M12 bolt, designed for reliable industrial current protection and safe power isolation.
£259.48
Why Choose the Mersen K1002188 MULTIVERT® NH Fuse Switch Disconnector?
The Mersen K1002188 is a high-performance MULTIVERT® NH Size 3 vertical fuse switch disconnector designed for industrial and utility low-voltage power distribution. Rated at 630 A and 690 V AC, it combines dependable circuit isolation, switching and fuse protection within a compact unit for installation on 185 mm busbar systems.
Also identified by catalogue number 1.300.000, the K1002188 features a three-pole, 3 × 1-pole switching arrangement and is suitable for NH Size 3 fuse links manufactured in accordance with IEC/EN 60269-2 and VDE 0636-2. The unit uses robust M12 bolted cable terminals, providing secure connections for demanding distribution applications.
The MULTIVERT® modular design supports fast installation, straightforward maintenance and a high degree of operator protection. With a standard installation depth of approximately 123 mm, the K1002188 offers a space-efficient solution for feeder pillars, transformer substations, industrial switchboards and cable distribution cabinets.
Key Advantages
- 630 A switching capacity for demanding low-voltage distribution systems.
- Rated for operation at up to 690 V AC.
- Designed for 185 mm busbar systems.
- Three independently switched poles provide flexible circuit control.
- Safe on-load switching in accordance with IEC 60947-3.
- Compact standard design helps conserve switchboard space.
- High short-circuit current rating for industrial applications.
- Symmetrical design permits top or bottom cable termination.
- Modular construction supports straightforward installation and maintenance.
Key Features
- Mersen MULTIVERT® vertical fuse switch disconnector.
- Item number: K1002188.
- Catalogue number: 1.300.000.
- Fuse size: NH Size 3.
- Rated current: 630 A.
- Rated operational voltage: 690 V AC.
- Switching configuration: 3 × 1-pole.
- Busbar spacing: 185 mm.
- Cable connection: M12 screw-bolt terminals.
- Suitable for 50 to 60 Hz systems.
- Central cover provides touch protection up to IP30.
- Suitable for top or bottom outgoing cable connections.
Reliable Switching and Protection for 630 A Distribution Systems
The Mersen K1002188 combines the functions of a switch disconnector with NH fuse protection. This allows electrical personnel to isolate downstream circuits visibly while the installed fuse links provide reliable protection against overloads and short circuits.
Its AC-23B utilisation category at 400 V makes the unit suitable for switching highly inductive loads, including motor circuits, when applied within the manufacturer’s ratings. The 80 kA short-circuit current rating provides additional confidence in installations with high prospective fault levels.
The vertical mounting arrangement connects directly to a 185 mm busbar system, reducing the need for extensive cabling and helping panel builders create compact, organised distribution assemblies. Symmetrical construction allows outgoing cables to be connected at either the top or bottom to suit the switchboard layout.
Typical Applications
- Industrial low-voltage switchboards.
- Transformer substations.
- Electrical feeder pillars.
- Cable distribution cabinets.
- Residential and industrial distribution units.
- Motor and machinery distribution circuits.
- Utility power distribution systems.
- OEM electrical assemblies.
Technical Specifications
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| 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 | K1002188 | |
| Catalogue No | 1.300.000 | |
| Description | NH fuse-switch disconnector MULTIVERT® Size 3 630A 3x1-Pole switching Bus bar system 185mm Screw M12 bolt | |
| EAN/UPC Code | 9008567000243 | |
| 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 | 3x1-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 | |
| 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 | 5.43 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 | 5.43 kg | |
| Conventional Free Air thermal Current - Solid Links | 800 A | |
| HS Code | 85365080 | |
| Country of Manufacture | Hungary |
Frequently Asked Questions
What is the Mersen K1002188?
The K1002188 is a MULTIVERT® NH Size 3 vertical fuse switch disconnector rated at 630 A and 690 V AC for installation on 185 mm busbar systems.
Which fuse links are suitable for the K1002188?
It is designed for NH Size 3 fuse links manufactured in accordance with IEC/EN 60269-2 and VDE 0636-2. Fuse characteristics and current ratings must be selected to suit the protected circuit.
What does 3 × 1-pole switching mean?
It means that the three phases are operated through individual single-pole switching mechanisms within the three-pole assembly, rather than all three poles being mechanically switched as one unit.
Can the outgoing cables be connected at the top or bottom?
Yes. The symmetrical MULTIVERT® design permits either top or bottom cable termination, providing flexibility when designing or modifying a switchboard.
What type of terminals does the K1002188 use?
The unit uses M12 screw-bolt terminals. Mersen specifies a tightening torque of approximately 35 ± 3 Nm for the M12 connections.
Is the K1002188 suitable for switching under load?
Yes. It is designed for safe on-load switching in accordance with IEC 60947-3, provided the circuit conditions remain within the specified current, voltage and utilisation-category ratings.
What busbar system is required?
The K1002188 is intended for installation on a 185 mm busbar system.
Trusted by Electrical Professionals Worldwide
Mersen MULTIVERT® fuse switch disconnectors are widely specified by panel builders, utilities and industrial engineers for dependable circuit switching, isolation and fuse protection in high-current low-voltage distribution systems.
