LEGRAND 4 121 73 User manual

1/7
87045 LIMOGES Cedex - FRANCE
Telephone : [phone] - Fax : [phone]
Connected Dry-Contact
Cat. number : 4 121 73 - 1 991 23
Sommaire Pages
1. Description - Use .....................................1
2. Range..........................................................1
3. Overall dimensions...................................1
4. Preparation - Connection .......................2
5. General characteristics...........................6
6. Compliance and approvals .................... 7
7Equipment and accessories ................... 7
1. DESCRIPTION - USE
Use:
. Allows single-phase measurement up to 80A and control in off-
peak hours mode or in ON/OFF mode (real time or programmed) of
electric vehicle terminals such as Green'up Premium or any other
device equipped with a terminal block 12 VDC / 30VDC direct
current control circuit (eg: heating manager, aeration/ventilation
system, sprinkler system, etc.).
Can also control any type of circuit previously equipped with a
power contactor (single-phase).
This product does not manage the "openings" appliances (roller
shutters, gate).
Product compatible with the load shedding function (connected
smart shedder Cat. number 4 121 72 - 1 991 20).
Technology:
. Monostable dry contact connected for control via smartphone,
voice assistants and/or push button on the front panel.
Measurement of single-phase current up to 80A, by field effect
using a closed toroid (delivered with the module) and sending
data by radio frequency to the connected network.
Symbol:
2. RANGE
Noise level:
. Noiseless switch: <10bB.
Width:
. 1 module. 17.8 mm wide.
Types of contact:
. Normally open contact type «F »
Rated current:
. 2 A
Rated voltage:
. 100 to 240V AC
Rated frequency:
. 50 / 60 Hz
Poles:
. 1 pole «1F »
2. RANGE (continued)
Configuration and use:
Can be used with:
- Legrand smartphone app
«HOME + CONTROL»
. Available for free on Google Play or App Store
- Voice assistants
- Connected Home Ecosystems
3. OVERALL DIMENSIONS
Technical data sheet: F03387EN/01
Updated on: 06/01/2023
Created on: 28/04/2021
Requires beforehand installation
of a “with Netatmo” connected
starter pack or a Control module
(gateway).

2/7
Connected Dry-Contact
Cat. number : 4 121 73 - 1 991 23
4. PREPARATION - CONNECTION
Mounting:
. On symmetrical rail EN / IEC 60715 or DIN 35.
Operating position:
. Vertical, Horizontal, Flat.
Row positioning:
. The product shape and the positioning of the terminals allow the
passage of single-line, three-lines and plug-in supply busbars in
the upper part of the product. Then, it is possible to freely choose
the position of the Connected Dry-Contact in the row and to
connect by supply busbar the other devices put on the same DIN
rail.
Module maintenance:
. It is possible to switch a Connected Dry-Contact in the middle of
a row supplied with an upstream busbar without disconnecting
the other devices on the same DIN rail.
4. PREPARATION - CONNECTION (continued)
Wiring of the upstream terminals:
Important: Activate the function peak OFF in the App
In case of a remote control done via a wired push button, the
control is done either via C1 and C2 terminals.
Warning: Do not wire a Neutral on C1 or C2
Authorized control wiring:
. Activate the specifical function in the App.
Wiring of the power supply and the Dry contact:
Technical data sheet: F03387EN/01
Updated on: 06/01/2023
Created on: 28/04/2021
1. Unclip the
clamps to put it in
open position
2. Pull the device
forward in order to
release it from the
DIN rail
3. Pull the device
downward in order to
completely release it
from the prongs of
the busbar
C1: IN terminal for control command (IN)
Use a dry-contact. No power allowed.
C2: Out terminal self-protected Line for
remote (OUT)
Use a dry-contact. No power allowed.
Advantage: «auto protected terminals »
technology. It is not necessary to put a 2A
protection
1: OUT terminal
Dry-Contact
L: IN terminal for the
Line
N: IN terminal for
Neutral
2: OUT terminal
Dry-Contact

3/7
Connected Dry-Contact
Cat. number : 4 121 73 - 1 991 23
4. PREPARATION - CONNECTION (continued)
Commutable load by the Dry-Contact:
. Maximum voltage: 250V AC or 30V DC
. Maximum current: 2A
. Minimum current: 0.01A
Wireless network:
. Maximum number of devices connected to a zigbee gateway
"with Netatmo" in the network: 100
Wiring diagrams:
. Control of any type of device in single-phase from 12 to 30V DC
via their terminal block provided for this purpose. eg : air
conditioner, heating manager.
For the protection of the installation, it is recommended to use a
circuit breaker or a gG fuse with a rated current according to the
cross section of the cables.
. Control of a single-phase power contactor (eg: for the swimming
pool pump).
To protect the connected Dry-Contact and the control circuit
(terminals 1 and 2), it is mandatory to use a circuit breaker or a
gG fuse with a nominal current of 2A.
4. PREPARATION - CONNECTION (continued)
. Management of charging station for electric vehicles (possibility
of off-peak information).
For the protection of the installation, it is recommended to use a
circuit breaker or a gG fuse with a rated current according to the
cross section of the cables.
Recommended tools:
. For the upstream terminals:
Flat blade screewdriver 3.5 mm.
. For the downstream terminals:
Screwdriver Pozidriv n°1 or flat-blade 4 mm.
. For clamping:
Screwdriver flat-blade (5,5mm or less) or Pozidriv n°1
Upstream terminal connection (C1, C2):
. Control screw terminals:
- Terminal type: cage
- Depth: 8 mm
- Stripping length recommended: 8 mm
- Screw head: slotted
- Type of screw: M3
- Minimum tightening torque: 0.3Nm / maxi: 0.5Nm / advised:
0.4Nm
Downstream terminal connection (N, L, 1, 2):
. Power screw terminals:
- Terminal type: cage
- Depth: 9 mm
- Stripping length recommended: 9 mm
- Screw head: Posidriv n°1 or slotted
- Type of screw: M3,5
- Minimum tightening torque: 0.8Nm / maxi: 1.4Nm / advised:
1Nm
Conductor type for remote control terminals (C1, C2):
. Copper cables
Without ferrule
With ferrule
Rigid cable
1x (0.75 à 1.5mm²)
-
Flexible cable
1x (0.75 à 1.5mm²)
1 x (0.75 à 1.5mm²)
Technical data sheet: F03387EN/01
Updated on: 06/01/2023
Created on: 28/04/2021

4/7
Connected Dry-Contact
Cat. number : 4 121 73 - 1 991 23
4. PREPARATION - CONNECTION (continued)
Conductor type for power terminals (N, L, 1, 2):
. Copper cables
Without ferrule
With ferrule
Rigid cable
1x (0.75 à 2.5mm²)
2 x (0.75 à 2.5mm²)
-
Flexible cable
1x (0.75 à 2.5mm²)
2 x (0.75 à 2.5mm²)
1 x (0.75 à 2.5mm²)
2 x (0.75 à 1.5mm²)
Connection of the measurement coil:
Insert the measurement coil connector into the slot provided on
the connected Dry-Contact until it locks (clips).
NB: If necessary, to disconnect it, use a small screwdriver on the
clips.
Measurement coil capacity:
Conductor
cross section
1.5mm²
2.5mm²
6mm²
10mm²
to
25mm²
Number of
conductor
flexible or
rigid
8
5
3
1
Commands of the connected dry contact:
. Operation on-site, directly with the front face push-button of the
device (I, auto, O).
. Via smartphone with the Home + Control smartphone app.
. By voice through a vocal assistant.
. Possibility of associating a “with Netatmo” on-wall wireless
connected push button (Maximum quantity: 20) via the Home +
Control app.
4. PREPARATION - CONNECTION (continued)
Visualization of the operating mode of the device and
contacts:
. Via the LED, on the push button command
Color
Status
Meaning
OFF
Manual mode and opened
Contact (OFF)
Blue/Off
Slow blinking
Automatic mode and opened
Contact (OFF)
Blue/Green
Slow blinking
Automatic mode and closed
Contact (ON)
Green
Fixed
Manual mode and closed
Contact (ON)
Visualization of the setup:
. Via the LED on the settings button
Color
Status
Meaning
Red
Fixed
Temporary status. Device not
connected to the radio
network
Green
Fixed
Temporary status. Device
correctly paired to the radio
network (when the radio
network is still open)
OFF
Normal status. Device paired
to the radio network (when
the radio network is closed)
Technical data sheet: F03387EN/01
Updated on: 06/01/2023
Created on: 28/04/2021
Connected Home
ecosystems
Or

5/7
Connected Dry-Contact
Cat. number : 4 121 73 - 1 991 23
4. PREPARATION - CONNECTION (continued)
Add a connected Dry-Contact in a connected
installation (several steps):
. 1/ Beforehand, to create a connected installation you must
install:
Either a Gateway module
Or a connected starter pack (drawing of principle, works with any
kind of “with Netatmo”connected starter pack).
Or any kind of « with Netatmo » gateway
. 2/ Beforehand, the general circuit breaker must be turned OFF.
Then after wiring step done, installation controlled, refit the front
plate so that no active live part is accessible. Then the general
circuit breaker can be powered back ON to simultaneously power
devices and allow them to be connected to the network.
. 3/ Finalize the installation in the Legrand Home + Control
smartphone app
Download the Home + Control App and follow
the instructions for adding the connected product in your setup.
You also have the option of controlling your installation via a voice
assistant and can customize your scenarios via the Home +
Control App.
4. PREPARATION - CONNECTION (continued)
Connected Dry-Contact resetting to remove it from a
connected installation:
. Press and hold over 5 seconds on the setting button until the
LED on the setting button be fixed red. It is no longer paired with
the Gateway module / Gateway power outlet.
Other configurations & actions:
. All other features and settings such as scenarios etc… are
directly explained step by step in the smartphone app.
Labelling:
. Circuit identification by way of a label inserted in the label
holder situated on the front of the product.
Technical data sheet: F03387EN/01
Updated on: 06/01/2023
Created on: 28/04/2021

6/7
Connected Dry-Contact
Cat. number : 4 121 73 - 1 991 23
5. GENERAL CHARACTERISTICS
Marking of the Connected Dry-Contact:
Principle visuals:
Marking of the front side:
Sectioning distance:
. micro-gap construction contact according to the standard
EN 60669-2-1
Rated insulation voltage (Ui):
. Ui = 250 V~
Degree of pollution:
. 2
Rated impulse withstand voltage (Uimp):
. 4 kV
Influence of altitude:
. No influence up to 2 000 m
Assigned frequency:
. 50 / 60 Hz
Rated operational Dry-Contact current:
. 2 A
Rated voltage of use (Ue):
. Ue = 100 to 240 V ~
Resistance to short-circuits:
. Presumed short circuit current 1500 A according to EN 60669-2-1
. Thermal stress: 15 000 A²s according to EN 60669-2-1
Recommendations:
. For the Dry-Contact protection against short circuits according to
the conditional current, it is recommended to use a circuit breaker
or gG fuse with rated current  2 A.
Dry-Contact endurance:
. 20 000 000 operations without load
. 40 000 operations under inductive load according
to EN 60669-2-1
. 10 000 operations under capacitive and inductive load according
to EN 60669-2-1
Measuring coil characteristics:
Max current 80A
5. GENERAL CHARACTERISTICS (continued)
Characteristics of the radio interface:
. Standard IEEE 802.15.4
. Frequencies 2,4 à 2,4835Ghz.
. Transmitter output power <100mW.
. Distance max between 2 radio devices: 50m in open field.
Dielectric resistance:
. 2000V between terminals and rail.
. 750V between terminal 1 and 2 from Dry-Contact.
. 3750V between SELV and LV.
Protection degree:
. Protection index of terminals against direct contacts: IP2X (wired
device).
. Protection index of the front face against direct contacts: IP3XD.
. Class II, front panel with front plate.
. Class of protection against mechanical impacts IK04.
Vibrations and shaking resistance:
. vibrations: 10 to 55 to 10Hz single amplitude 0.75mm.
. Shaking: 1000m / s ² (6 ± 1ms).
Plastic material:
. Self-extinguishing polycarbonate.
. Heat and fire resistant according to IEC/EN 60669-2-1, glow-
wire test at 960°C.
. Classification UL 94 V0 (≥1.5mm).
Ambient operating temperature:
. Min. = - 5 °C Max. = + 45 °C.
Ambient storage temperature:
. Min. = - 40 °C Max. = + 70 °C.
Average weight:
. Dry-Contact: 66g.
. Measurement coil: 41g.
Volume when packed:
. 0,62 dm3.
Technical data sheet: F03387EN/01
Updated on: 06/01/2023
Created on: 28/04/2021
Icon, to easily identify
a connected device in
the electrical panel
board

7/7
Connected Dry-Contact
Cat. number : 4 121 73 - 1 991 23
6. COMPLIANCE AND APPROVALS
Compliance to standards:
. IEC/EN60669-2-1 + EN60669-2-5
Environment respect –Compliance with European Union Directives:
. Compliance with Directive 2002/95/EC of 27/01/03 known as "RoHS" which provides for a restriction on the use of dangerous
substances such as lead, mercury, cadmium, hexavalent chromium and polybrominated biphenyl (PBB) and polybrominated diphenyl
ether (PBDE) brominated flame retardants from 1st July 2006
. Compliance with the Directive 91/338/EEC of 18/06/91 and decree 94-647 of 27/07/04
. Compliant with regulation REACH
Conformity with electromagnetic interference (EMC):
. Compliant EN 301 489-1, IEC 60669-2-5, NF EN 60669-2-1
Immunity to shock waves
Radio transmission
Immunity to electrical transients in bursts.
Immunity to conducted disturbances induced by radio fields
Immunity to radiated fields
Electrostatic discharge immunity
Immunity to voltage dips and short break
. Compliance radiated emission according to NF EN55032.
Plastic materials:
. Halogen-free plastics.
. Marking of parts according to ISO 11469 and ISO 1043.
. ISO 7000: 2004, Graphical symbols to be used on equipment - Index and synopsis
Packaging:
. Design and manufacture of packaging in accordance with Decree 98-638 of 20/07/98 and Directive 94/62 / EC.
7. AUXILIARIES AND ACCESSORIES
Beforehand, requires the installation of a " connected starter pack " or " a “gateway module".
Technical data sheet: F03387EN/01
Updated on: 06/01/2023
Created on: 28/04/2021