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MERSEN FUSE MV3 630A/185mm 3P3 1.350.066 1.350.066
3-pole switching fuse-switch disconnector designed for NH fuse size 3 with integrated current transformer, suitable for 185 mm bus bar systems and rated up to 690 V AC.
£374.04
Why Choose the Mersen H1023254 NH Fuse Switch Disconnector?
The Mersen H1023254 is a genuine MULTIVERT® NH Size 3 vertical fuse switch disconnector designed for safe switching, isolation and circuit protection in demanding low-voltage power distribution systems. Rated at 630 A and 690 V AC, it is designed for installation on 185 mm busbar systems and accommodates NH Size 3 fuse links. This version incorporates an integrated calibrated current transformer (CT) on pole 1 for accurate single-phase current measurement.
Based on the proven MULTIVERT® modular platform, the H1023254 combines reliable switching performance with straightforward installation and a high level of operator protection. The compact standard design requires an installation depth of approximately 123 mm, making it ideal for space-constrained switchboards while still providing excellent accessibility for maintenance.
The unit features three M12 bolted cable terminations and an integrated 600/5 A, 5 VA, Class 0.5 calibrated current transformer factory-fitted in pole 1, enabling accurate metering without requiring additional external CT mounting.
Key Advantages
- Genuine Mersen MULTIVERT® 630A fuse switch disconnector.
- 630 A rated current with operation up to 690 V AC.
- Compatible with NH Size 3 fuse links.
- Designed for 185 mm busbar systems.
- Integrated 600/5 A Class 0.5 calibrated current transformer.
- Compact installation depth helps save switchboard space.
- Robust M12 bolted cable connections.
- High operator safety and modular installation design.
Key Features
- MULTIVERT® Size 3 vertical fuse switch disconnector.
- Catalogue number: 1.350.066.
- 630 A rated current.
- 690 V AC maximum operating voltage.
- 50–60 Hz operation.
- Three-pole switching.
- 185 mm busbar mounting.
- 3 × M12 bolted cable terminals.
- Integrated 600/5 A, 5 VA, Class 0.5 current transformer fitted to pole 1.
- Approximate installation depth of 123 mm.
Integrated Metering for Industrial Power Distribution
The H1023254 combines switching, isolation and overcurrent protection with an integrated current transformer, allowing accurate current measurement directly from the fuse switch disconnector. The factory-installed 600/5 A calibrated Class 0.5 CT simplifies panel construction by eliminating the need for separate external current transformer mounting on single-phase monitoring applications.
Designed for industrial switchboards, feeder pillars and power distribution assemblies, the MULTIVERT® platform provides dependable operation, simple installation and long service life while maintaining full compatibility with NH Size 3 fuse links and 185 mm busbar systems.
Typical Applications
- Industrial switchboards.
- Main low-voltage distribution panels.
- Power monitoring installations.
- Transformer substations.
- Motor control centres.
- OEM electrical equipment.
- Infrastructure power distribution.
- Commercial and industrial facilities.
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 | H1023254 | |
| Catalogue No | 1.350.066 | |
| Description | NH fuse-switch disconnector MULTIVERT® Size 3 630A 1x3-Pole switching Bus bar system 185mm Screw M12 ct1P c. | |
| EAN/UPC Code | 9008567008331 | |
| 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 0,5; calibrated, 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 H1023254?
The H1023254 is a MULTIVERT® NH Size 3 vertical fuse switch disconnector rated at 630 A with an integrated calibrated current transformer for single-pole current measurement.
What current transformer is fitted?
The unit includes a factory-fitted 600/5 A, 5 VA, Class 0.5 calibrated current transformer installed on pole 1.
Which fuse size is compatible?
The H1023254 is designed for NH Size 3 fuse links in accordance with IEC/EN 60269-2.
How is the unit connected?
The switch disconnector uses three M12 bolted cable terminals and mounts directly onto a standard 185 mm busbar system.
Where is the H1023254 commonly used?
It is widely used in industrial switchboards, transformer substations, distribution panels and installations requiring integrated current measurement.
Trusted for Industrial Power Distribution
Mersen MULTIVERT® fuse switch disconnectors are trusted by panel builders, OEM manufacturers and electrical engineers for reliable switching, safe isolation and integrated monitoring solutions in demanding industrial electrical installations.
