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Approvals & Standards

  • IEC/EN 61000-6-2
  • IEC/EN 60 947-3
  • For NH-fuse links size 1 & 2 in accordance with IEC/EN 60 269-2, VDE 0636-2

Key features & benefits

MERSEN Smart monitoring solution is key to answer to new challenges of the electrical power grid!
The development of smart Low voltage grids will enable better understanding of the behavior of local LV networks in the context of decentralization and volatility of renewable power sources and of EV charging stations, among others.
Instant monitoring of the network values and status allows a more efficient load & demand management and higher network availability.
Critical or heavily loaded network sections can then be specifically monitored to perform preventive maintenance and high service continuity.
The most user-friendly and most compatible smart monitoring module for NH vertical fuse switch disconnectors !
The compact module designed by Mersen is by far the simplest to install monitoring device and adapts perfectly to the Multivert i-Xtensio ranges that are available today.
The product has been engineered to be fully compatible with Energy Monitoring systems existing on the market and has a very compact design for tremendous functionalities.
This device makes the data available for the end-user that can connect directly on the Modbus modules. The modules measures relevant data directly on the fuse switch disconnector and enables the users to access instantaneously to main data of energy consumption.

More specifications


Power monitoring in Utility, Industrial and Building environments

Product Specifications

Item Number


Catalog number



NH fuse-switch discon. s.3 630A 3x1-P. Bus bar sys. 185mm V-terminal E.on Smart  

EAN/UPC code



50 ... 60   Hz

Utilization Category

AC 23 B @ Ue = AC 400 V; Ie = 630 A  

Utilization Category

AC 22 B @ Ue = AC 500 V; Ie = 630 A  

Utilization Category

AC 21 B @ Ue = AC 690 V; Ie = 630 A  


3x1-pole switching  

ROHS Compliant


Fuse size


Design Details

MULTIVERT® 7.328.025 with V-terminals, pre-cabled with 3x CTs 600/1A, 5 VA, class 1, 3-Phase voltage measurements and Smart module SM-RTU/1. Fully compliant to E.on Specification  

Number of Poles


Degree of pollution


Rated Impulse Withstand Voltage Uimp

12   kV

Rated Insulation Voltage

1000   V

Rated SC Withstand

12.6 kA / 1 s  

Conventional Free Air thermal Current With Fuse-Links Ith

630   A

Conventional Free Air thermal Current - Solid Links

800   A

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  


V-terminal, V-clamps not incl.  

Product Weight

6.3   kg

Product Width

98.00   mm

Product Length

223.00   mm

Product Height

725.00   mm

Sell Pack Quantity

1   EA

Sell Pack Weight

7.5   kg

Sell Pack Width

130.00   mm

Sell Pack Length

240.00   mm

Sell Pack Height

810.00   mm