Standard delivery
£8 ex VAT · free over £200UK parcel delivery is £8 ex VAT, or free on orders over £200 ex VAT.
Heavier items may be charged at a weight-based or pallet rate, shown at checkout.
MERSEN FUSE MV2 400A/185mm 3P3 1.270.094 1.270.094
Reliable 3-pole switching fuse-switch disconnector with 400A rating, designed for 185mm bus bar system integration and enhanced operational safety.
£433.79
Why Choose the Mersen S1023217 MULTIVERT® NH Fuse Switch Disconnector?
The Mersen S1023217 is a premium MULTIVERT® NH Size 2 vertical fuse switch disconnector designed for switching, isolation and circuit protection in demanding low-voltage power distribution systems. Engineered for direct installation onto 185 mm busbar systems, it combines compact construction with an integrated current transformer for accurate three-phase current measurement.
Rated at 400 A and 690 V AC, the S1023217 is designed for use with NH Size 2 fuse-links manufactured in accordance with IEC/EN 60269-2 and VDE 0636-2. The integrated 400/5 A, 3.75 VA Class 1 current transformer enables triple-pole current monitoring without requiring external CT mounting, simplifying switchboard design and reducing installation time.
Featuring 1 × 3-pole simultaneous switching with V-terminal cable connections, the S1023217 provides reliable load switching, safe electrical isolation and integrated metering capability, making it ideal for industrial switchboards, transformer substations and power distribution panels.
Key Advantages
- Integrated 400/5 A Class 1 current transformer for three-phase measurement.
- 400 A rated current for demanding industrial applications.
- 690 V AC operating voltage.
- Designed for direct mounting onto 185 mm busbar systems.
- 1 × 3-pole simultaneous switching for safe operation.
- V-terminal cable connections for compatible clamp systems.
- Compact MULTIVERT® modular construction for simplified installation.
Key Features
- Mersen MULTIVERT® 400 A Series.
- Model: S1023217.
- Catalogue number: 1.270.094.
- NH Size 2 fuse switch disconnector.
- 400 A rated current.
- 690 V AC rated voltage.
- Integrated CT: 400/5 A, 3.75 VA, Class 1.
- Triple-pole current measurement.
- 185 mm busbar mounting.
- V-terminal cable connections.
- Suitable for 50 / 60 Hz operation.
- 120 kA SCCR.
Integrated Switching, Protection and Measurement
The Mersen S1023217 combines load switching, circuit isolation, fuse protection and accurate three-phase current measurement in a single compact assembly. Its integrated 400/5 A Class 1 current transformer removes the need for separately mounted CTs, reducing wiring complexity while improving switchboard layout efficiency.
The MULTIVERT® modular platform enables rapid installation and easy maintenance while maintaining compatibility with genuine Mersen accessories and NH Size 2 fuse-links. Its compact installation depth makes it particularly suitable where panel space is limited.
Typical Applications
- Industrial low-voltage switchboards.
- Transformer substations.
- Power distribution systems.
- Energy monitoring installations.
- Motor control centres.
- OEM electrical equipment.
Technical Specifications
Tick the specs you need, then view products that match.
| 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 | S1023217 | |
| Catalogue No | 1.270.094 | |
| Description | NH fuse-switch disconnector MULTIVERT® Size 2 400A 1x3-Pole switching Bus bar system 185mm V-terminal ct3P | |
| EAN/UPC Code | 9008567001561 | |
| 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® 1.270.000 with integrated C.T. 400/5A, 3,75 VA, class 1 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 | 5.41 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 | 5.41 kg | |
| Conventional Free Air thermal Current - Solid Links | 630 A | |
| HS Code | 85365080 | |
| Country of Manufacture | Hungary |
Frequently Asked Questions
What is the Mersen S1023217 used for?
It is an NH Size 2 fuse switch disconnector providing load switching, isolation, circuit protection and integrated three-phase current measurement.
What is the rated current?
The Mersen S1023217 has a rated operating current of 400 A.
Does the S1023217 include a current transformer?
Yes. It incorporates a 400/5 A, 3.75 VA, Class 1 current transformer for triple-pole measurement.
Which busbar system is compatible?
The switch disconnector is designed for installation onto a 185 mm busbar system.
Which fuse-links are compatible?
The unit is designed for NH Size 2 fuse-links manufactured to IEC/EN 60269-2 and VDE 0636-2.
Trusted for Industrial Power Distribution
Mersen MULTIVERT® fuse switch disconnectors are trusted by panel builders, OEM manufacturers and industrial electrical engineers for dependable switching, integrated current measurement and reliable protection within modern low-voltage distribution systems.
