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MERSEN FUSE MV2 400A/185mm 3P3 1.250.074 1.250.074
Robust NH fuse-switch disconnector engineered for secure and efficient protection of low-voltage power distribution, supporting up to 400A across three poles with MULTIVERT® Size 2 design and M12 screw terminals.
£587.49
Why Choose the Mersen N1023213 MULTIVERT® NH Fuse-Switch Disconnector?
The Mersen N1023213 is a high-performance MULTIVERT® NH vertical fuse-switch disconnector designed for industrial low-voltage power distribution systems. Also identified by catalogue number 1.250.074, this 400 A unit is designed for NH size 2 fuse-links and features factory-fitted 400/5 A Class 0.5 calibrated current transformers for accurate three-phase current measurement. It is designed for direct installation onto standard 185 mm busbar systems.
The N1023213 incorporates a 1 × three-pole switching arrangement with secure 3 × M12 bolt cable terminations, providing reliable switching, isolation and overcurrent protection for demanding industrial installations. The modular MULTIVERT® design enables rapid installation, simplified maintenance and excellent operator safety.
Rated for operation up to 690 V AC at 50/60 Hz, this fuse-switch disconnector is ideal for switchboards, motor control centres, energy monitoring systems and OEM panel building where highly accurate three-phase current measurement is required.
Key Advantages
- 400 A rated current for demanding industrial applications.
- Designed for NH size 2 fuse-links.
- Integrated 400/5 A Class 0.5 calibrated current transformers.
- Provides accurate three-phase current measurement.
- Designed for 185 mm busbar systems.
- Three-pole switching configuration.
- M12 bolt cable terminations ensure secure conductor connections.
- Compact MULTIVERT® modular construction simplifies installation and servicing.
Key Features
- Mersen MULTIVERT® Size 2 fuse-switch disconnector.
- 400 A rated operational current.
- 690 V AC rated voltage.
- Designed for NH size 2 fuse-links.
- 185 mm busbar mounting.
- 1 × three-pole switching.
- 3 × M12 bolt cable terminations.
- Integrated 400/5 A Class 0.5 calibrated CTs for three-phase measurement.
- Rated short-circuit current up to 120 kA (application dependent).
- Suitable for industrial low-voltage distribution systems.
Integrated Three-Phase Current Monitoring
The Mersen N1023213 combines dependable circuit protection with factory-installed calibrated current transformers for accurate three-phase current monitoring. This integrated solution reduces installation time while eliminating the need for separate externally mounted current transformers in many switchboard applications.
Its modular MULTIVERT® construction enables rapid installation on standard 185 mm busbar systems while delivering safe isolation, reliable switching and long-term performance in demanding industrial environments. The integrated calibrated CTs make this unit ideal for energy monitoring, feeder metering and process control applications.
Typical Applications
- Industrial low-voltage switchboards.
- Main and sub-distribution panels.
- Motor control centres.
- Energy monitoring systems.
- Industrial automation.
- OEM switchboard manufacturing.
- Infrastructure electrical distribution.
- Commercial power distribution systems.
Technical Specifications
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| Mounting Type | Busbar system 185 mm | |
|---|---|---|
| Current | 400 A | |
| Phase | Three Phase | |
| Poles | 3-pole | |
| Device Type | Fuse switch disconnector | |
| Voltage | 690 V | |
| Item number | N1023213 | |
| Catalogue No | 1.250.074 | |
| Description | NH fuse-switch disconnector MULTIVERT® Size 2 400A 1x3-Pole switching Bus bar system 185mm Screw M12 ct3P c. | |
| EAN/UPC Code | 9008567008294 | |
| Frequency (Hz) | 50 ... 60 Hz | |
| Rated voltage AC IEC | 690 V | |
| Ampere Rating | 400 A | |
| Utilization Category | AC 23 B @ Ue = AC 400 V; Ie = 400 A AC 22 B @ Ue = AC 500 V; Ie = 400 A AC 21 B @ Ue = AC 690 V; Ie = 400 A | |
| Switchability | 1x3-pole switching | |
| RoHS Compliant | Yes | |
| AC or DC | AC | |
| Short Circuit Current Rating (SCCR) | 120kA@Ue = AC 400 V; Ie = 400 A / 120kA@Ue = AC 500 V; Ie = 400 A / 120kA@Ue = AC 690 V; Ie = 315 A / 100kA@Ue = AC 690 V; Ie = 400 A | |
| Fuse Size | 2 | |
| Design Details | MULTIVERT® 1.250.000 with integrated C.T. 400/5A, 3,75 VA, class 0,5; calibrated, for triple pole measurement | |
| 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 | 34 W | |
| Max Power dissipation of Solid Links Pn | 9 W | |
| Power Dissipation by Ith without Fuse-Links | 61 W | |
| Power Dissipation by Ith without Solid Links | 151 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 | 4.9 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 | 400 A | |
| Product Weight | 4.9 kg | |
| Conventional Free Air thermal Current - Solid Links | 630 A |
Frequently Asked Questions
What is the Mersen N1023213 used for?
The N1023213 is an NH size 2 vertical fuse-switch disconnector providing switching, isolation and circuit protection with integrated calibrated current transformers for accurate three-phase current measurement.
What is the current rating?
The unit has a rated operational current of 400 A.
Does the N1023213 include current transformers?
Yes. It is supplied with integrated 400/5 A Class 0.5 calibrated current transformers for accurate three-phase current measurement.
Which busbar system is it designed for?
The N1023213 is designed for direct installation onto a standard 185 mm busbar system.
What cable termination does it use?
The unit features three M12 bolt cable terminations for secure high-current conductor connections.
Trusted Industrial Circuit Protection
Mersen MULTIVERT® fuse-switch disconnectors are trusted by panel builders, electrical contractors and industrial engineers for dependable circuit protection, safe isolation and accurate integrated power monitoring in low-voltage distribution systems.
