ABB i-busฎ EIB / KNX Binary Input, 8-fold, 24 V AC/DC, MDRC 
BE/S 8.24.1, 2CDG 110 055 R0011 

5 
2CDC 071 009 F0005 
Technical data 

Power supply 

Inputs 

Connections 

Connection terminals 

Operating and display elements 

Enclosure 
Safety class 
Temperature range 


Environment conditions 
Design 


Installation 
Mounting position 
Weight 
Housing/colour 
Approvals 
CE mark 

BE/S 8.24.1 

The 8-fold Binary Input BE/S 8.24.1 
with manual operation is a rail mounted 
device for insertion in the distribution 
board. The device is suitable for 
reading out 0...32 V AC/DC signals. 
The inputs are independent of one 
another. 

Buttons on the front of the device can 
be used to simulate the input state. 
The status of the inputs are displayed 
by yellow LEDs. 

– Bus voltage 21 … 32 V DC 
– Current consumption, bus < 12 mA 
– Power consumption Max. 1.1 W 
– Leakage loss, bus Max. 250 W 
– Number 8 individual 
– Permitted voltage range Un 0...32 V AC/DC 
– Input current In Max. 5 mA 
– Signal level for 0-signal 0...4 V AC/DC 
– Signal level for 1-signal 9...32 V AC/DC 
– Permitted cable lengths m 100 m with 1.5 mm2 
– EIB / KNX via bus connection terminal, without screws 
– Inputs using screw terminals 
– Screw terminals 0.2 ... 2.5 mm2 finely stranded 
0.2 ... 4.0 mm2 single-core 
– Tightening torque max. 0.6 Nm 
– Programming LED (3) for assignment of the physical address 
– Programming button (2) for assignment of the physical address 
– Channel LED (8) 1 LED per channel for display of the input state 
– Manual operation button (9) 1 button per channel for changing the input state 
– Manual/Automatic LED (Man.) (6) 1 LED for display of the manual/automatic 
mode states 
– Manual/Automatic button (Man.) (5) 1 button for switchover of manual and 
automatic mode 
– IP 20 to DIN EN 60 529 
– II to DIN EN 61 140 
– Operation – 5 ฐC...+ 45 ฐC 
– Storage – 25 ฐC...+ 55 ฐC 
– Transport – 25 ฐC...+ 70 ฐC 
– max. humidity 93%, without bedewing 
– Modular installation device (MDRC) Modular installation device, ProM 
– Dimensions 90 x 72 x 67.5 mm (H x W x D) 
– Mounting width in space units 4, 4 modules at 18 mm 
– Mounting depth 67.5 mm 
– On 35 mm mounting rail to DIN EN 60 715 
– as required 
– 0.2 kg 
– Plastic housing, grey 
– EIB / KNX to EN 50 090-1, -2 Certification 

The device is ready for operation after 
connection to the bus voltage. 
The Binary Input is parameterised via 
ETS2 V1.3a or higher. 
The connection to the bus is 
established using the front side bus 
connection terminal. 

5 
– in accordance with the EMC guideline and low voltage guideline 
Page 1 of 4 

BES_8241_TD_EN_V1-2 BE/S 8.24.1

2CDC 504 050 D0203 


ABB i-busฎ EIB / KNX Binary Input, 8-fold, 24 V AC/DC, MDRC 
BE/S 8.24.1, 2CDG 110 055 R0011 

5 
Application program 
Binary 8f 24M/1 
Max. number of 
communication objects 
83 
Max. number of 
group addresses 
254 
Max. number of 
associations 
254 
Note The programming requires EIB Software Tool ETS2 V1.3a or higher. If ETS3 is 
used a “.VD3” type file must be imported. The application program is available 
in the ETS2 / ETS3 at ABB/Input/Binary Input 4-fold. 
Detaild information about the application can be found in the product-manuels 
for the „Binary Input BE/S“. This manual can be free downloaded under 
www.ABB.de/EIB. 

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Page 2 of 4 

BE/S 8.24.1 BES_8241_TD_EN_V1-2 BE/S 8.24.1

2CDC 504 050 D0203 


ABB i-busฎ EIB / KNX 
BE/S 8.24.1 BE/S 8.24.1 
5 5 
Binary Input, 8-fold, 24 V AC/DC, MDRC 
BE/S 8.24.1, 2CDG 110 055 R0011 
Page 3 of 4 
BES_8241_TD_EN_V1-2 
2CDC 504 050 D0203 
Circuit diagram 
Dimension drawing 
1 Label carriers 5 Manual/Automatic button 
2 Programming button 6 Manual/Automatic LED 
3 Programming LED 7 Connection terminals 
4 Bus connection terminal 8 Channel LED 
9 Manual operation button 
2CDC 072 259 F0006 2CDC 072 253 F0006

ABB i-busฎ EIB / KNX Binary Input, 8-fold, 24 V AC/DC, MDRC 
BE/S 8.24.1, 2CDG 110 055 R0011 

Notes 

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Page 4 of 4 

BE/S 8.24.1 BES_8241_TD_EN_V1-2 BE/S 8.24.1

2CDC 504 050 D0203