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MERSEN FUSE MV1 250A/185mm 3P3 1.150.000 1.150.000
NH fuse-switch disconnector MULTIVERT® Size 1 (250A, 1×3-pole) designed for reliable power distribution with robust switching capability within 185mm bus bar systems and M10 screw terminal connections.
£218.35
Why Choose the Mersen L1002189 MULTIVERT Fuse Switch Disconnector?
The Mersen L1002189 is a robust NH vertical fuse switch disconnector designed for safe switching, isolation and circuit protection in industrial and commercial low-voltage power distribution systems. Part of the proven Mersen MULTIVERT 250A series, it combines three-pole switching with direct installation on a standard 185 mm busbar system.
Rated at 250 A and 690 V AC, the L1002189 accepts NH size 1 fuse links manufactured in accordance with IEC/EN 60269-2 and VDE 0636-2. Its triple-pole operating mechanism allows all three phases to be connected or disconnected together, supporting safe maintenance and dependable control of electrical feeders.
The switch disconnector features three M10 bolt cable connections and a modular vertical format that helps conserve valuable switchboard space. With an IP30 degree of protection when fitted with its central cover and a short-circuit current rating of up to 120 kA, it is suitable for demanding distribution boards, feeder pillars and transformer substations.
Key Advantages
- Combines switching, isolation and NH fuse protection in one assembly.
- 250 A current rating for industrial power distribution applications.
- 690 V AC rated operational voltage.
- Triple-pole switching disconnects all three phases simultaneously.
- Designed for direct mounting on a 185 mm busbar system.
- High 120 kA short-circuit current rating.
- Compact vertical design supports efficient switchboard layouts.
- Safe on-load switching in accordance with IEC 60947-3.
Key Features
- Mersen MULTIVERT 250A series.
- NH size 1 fuse switch disconnector.
- 250 A rated current.
- 690 V AC rated voltage.
- 1 × 3-pole switching configuration.
- Direct installation on 185 mm busbars.
- Three M10 bolt cable terminals.
- IP30 touch protection with central cover.
- Suitable for 50 and 60 Hz electrical systems.
Safe Switching and Protection for Power Distribution
The Mersen L1002189 combines the protective performance of NH fuse links with the operational safety of a load-break disconnector. When suitable fuses are installed, the unit protects cables and distribution equipment against overload and short-circuit currents while allowing the circuit to be safely isolated for maintenance.
Its vertical construction is optimised for installation on 185 mm busbar systems, helping panel builders create compact and modular distribution assemblies. The symmetrical design also supports flexible top or bottom cable termination, depending on the switchboard layout and installation requirements.
Typical Applications
- Industrial switchboards and distribution panels.
- Transformer substations.
- Feeder pillars and cable distribution cabinets.
- Residential and commercial distribution systems.
- Manufacturing and process facilities.
- Utility and infrastructure power distribution.
- Low-voltage busbar assemblies.
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 | L1002189 | |
| Catalogue No | 1.150.000 | |
| Description | NH fuse-switch disconnector MULTIVERT® Size 1 250A 1x3-Pole switching Bus bar system 185mm Screw M10 bolt | |
| EAN/UPC Code | 9008567000052 | |
| 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 | 4.67 kg | |
| Sell Pack Width | 200 mm | |
| Sell Pack Length | 705 mm | |
| Sell Pack Height | 105 mm | |
| Product group | IEC Fuse Switch Disconnectors | |
| Conventional Free Air thermal Current With Fuse-Links Ith | 250 A | |
| Product Weight | 4.67 kg | |
| Conventional Free Air thermal Current - Solid Links | 400 A | |
| HS Code | 85365080 | |
| Country of Manufacture | Hungary |
Frequently Asked Questions
What is the Mersen L1002189 used for?
The Mersen L1002189 is used for switching, isolating and protecting three-phase electrical feeders in low-voltage power distribution systems.
What is the current rating of the L1002189?
The fuse switch disconnector has a rated current of 250 A.
Which fuse links are compatible?
The L1002189 is designed for NH size 1 fuse links manufactured in accordance with IEC/EN 60269-2 and VDE 0636-2.
What busbar system does it fit?
The unit is designed for direct installation on a standard 185 mm busbar system.
Does the L1002189 switch all three phases together?
Yes. It uses a 1 × 3-pole switching arrangement, allowing all three phases to be connected or disconnected simultaneously.
What cable connections are provided?
The switch disconnector is supplied with three M10 bolt connections for cable termination.
Trusted Power Distribution Technology from Mersen
Mersen MULTIVERT fuse switch disconnectors are widely used by electrical engineers, panel builders and utility operators to provide dependable circuit protection, safe isolation and efficient power distribution in demanding low-voltage installations.
