KNX binary input, 8-gang, rail mounting device, 4 rail units

2128 REG

rail mounting device, 4 rail units
8 inputs 12 ... 48 V AC/DC
Auxiliary voltage output DC 24 V (SELV) for polling floating contacts
with status indicator
ETS product family: Input
Product type: Binary input

Intended use

Polling of conventional switching or push-button contacts, window contacts etc. in KNX systems, for reporting of states, meter levels, operation of loads, etc.
Mounting on DIN rail according to EN 60715 in distribution box

Product characteristics

Status LED for each input
Detection of voltage levels and changes on the input
Transmitting of input status to the bus
Transmitting behaviour freely adjustable
Functions: switching, dimming, blinds up/down, brightness values, temperatures, calling up and saving light scenes, etc.
Inputs can be blocked separately
Connection of external AC or DC voltages

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Information

Article number:	2128 REG
EAN/GTIN:	4011377084872

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Technical data

KNX medium:	TP 256
Rated voltage KNX:	DC 21 ... 32 V SELV
Power consumption KNX:	max. 350 mW
Stand-by:	max. 200 mW
Connection, KNX:	connection terminal
Ambient temperature:	−5 ... +45 °C
Storage/transport temperature:	−25 ... +70 °C
Inputs
Rated voltage:	AC/DC 12 ... 48 V
Signal level "0" signal:	AC/DC −48 ... +2 V
Signal level "1" signal:	AC/DC 8 ... 48 V
Input current at rated voltage:
Input current:	2 mA
Signal duration:	min. 30 ms
Rated frequency AC signal:	30 ... 60 Hz
Number of contacts per input
NO contacts:	unlimited
NC contacts:	max. 20
Output voltage:	DC 24 V SELV
Mounting width:	72 mm (4 rail units)
Stand-by power:	max. 200 mW
Power loss:	max. 1 W
Connection
Connection mode:	screw terminals
single wire:	1 x 0.2 ... 4 mm²
stranded without ferrule:	1 x 0.34 ... 4 mm²
stranded with ferrule:	1 x 0.14 ... 2.5 mm²
Cable length:	max. 100 m

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Downloads

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Operating instructions	Select language Select language DE EN ES FR IT NL NO
Product documentation	Select language Select language DE EN
Release notes	Select language Select language DE EN
Datenbank ETS4 + ETS5	Select language Select language DE EN ES FR IT NL RU
ETS3 ab Version d + ETS4 + ETS5	Select language Select language DE
CAD (dwg)
CAD (stp)
EPLAN Makro
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EC Declaration of Conformity	AE Select language Select language EN DE AT GB SG ES EE FR IT LT LV NL PL PT RU UA ZH
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Logistic

Single item
Packaging unit	1 pc.
Weight	218 G
Length	95 MM
Height	77 MM
Width	96 MM
Carton
Packaging unit	1 pc.
Weight	218 G
Length	95 MM
Height	77 MM
Width	96 MM

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