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www.legrand.com

www.bticino.com

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F411U2

23/03/2021

ST-00000893-

2 Relay actuator 10A

Description

Actuator at 2 independent, interlockable channels, for operating LED, compact 
fluorescent (CFL) and linear fluorescent lamps with electronic and ferromagnetic 
transformers or motors (in case of relay interlocking). Each channel is capable of 
switching up to a maximum of 10A. The device incorporates the function Zero crossing 
for the proper management of energy-saving lamps.
The device is configurable through MHSuite or through physical configurators; a 
summary of the main possible functions is provided below:
- Lights switching
- Motors switching
- Operating mode selection (Master, Slave, Master PUL, Slave PUL)
- Load control mode manual selection (with zero crossing, without zero crossing)
- Contact status at power recovery configuration 
- Slave device switch-off delay configuration (only in Master/Master PUL mode)
For additional details, see "Configuration". After connecting the device to BUS/SCS and to 
the load, you can monitor the loads from any properly configured system control device. 
Moreover, you can locally control the loads by using the buttons on the device: a short 
press activates or deactivates the load.

Dimensions

Overall size: 2 DIN modules

1. 

Configurator seat (Note that this must only be used in MyHOME systems with 
physical configuration)

2. 

BUS connector

3. 

Load status LED

4. 

Load control pushbutton

Legend

Technical data

Power supply via SCS BUS:  

27 Vdc

Operating power supply with BUS SCS:   22 – 27 Vdc

Input:  

5 mA (stand-by)

   

55 mA (max - single loads)

   

30 mA (max - interlock)

Number of outputs:  

2x10A

Operating temperature:  

(0) – (+40) °C

Protection index: 

IP20

Level of robustness:  

IK40

NOTE:

 1) the dissipated power indicated is that corresponding to the device with 

all the relays loaded at the maximum load. With lower loads also the dissipated 
power is lower and may be calculated by means of the following formula: P[m-
W]=140+400*N+10*[Ic1+Ic2]
P: dissipated power in mW, N: no. of loaded relays, IN: load current corresponding to 
the N relay.

List of Functions

The device performs the following functions:
1. LIGHT SWITCH
2. AUTOMATION CONTROL

See the following pages for the configuration procedures.

Front view

EN

Driven loads power/absorption ensured for the configuration with zero crossing and neutral 

connected (otherwise relay bonding problems may occur):

Incandescent lamps  

Halogen lamps

LED lamps

Compact fluorescent lamps

*

250 Vac

2300 W

10 A

500 W

2 A

110 Vac

1100 W

10A

250 W

2 A

* With connected neutral, max. 10 lamps. For good lighting comfort, we recommend the 
use of lamps of the same type and from the same supplier.

Linear fluorescent lamps

Electronic transformers

Ferromagnetic 

transformers

Motor reducers 

for rolling shutters

250 Vac

920 W

4 A

920 VA

4 A cosφ 0,5

460 W

2 A

110 Vac

440 W

4 A

440 VA

4 A cos

250 W

 2 A

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