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Bus power supply 640 mA
with auxiliary output 30 Vdc
Product code: EK-AG1-TP
KNX device with function of power supply for a bus line
with auxiliary output. It has to be used in KNX installations
for control of homes and buildings.
Description
The ekinex
power supply EK-AG1-TP is a KNX device
®
for rail mounting which produces and monitors the 30 Vdc
voltage required to operate the bus system. The device
is equipped with an additional output 30 Vdc that may be
used for the auxiliary power supply of other SELV devices.
The device has an integrated choke which provides the
decoupling between the power supply and the information
on the bus line. On a KNX bus line can be connected up
to 64 KNX bus devices. The total current absorbed from
the two outputs (KNX bus and auxiliary) cannot exceed
640 mA. The output is protected from overload and short
circuit. The device can support short interruptions of the
mains voltage (max 200 ms).
Functions
• 30 Vdc SELV power supply for a KNX bus line with max
64 connected devices
• Auxiliary power supply 30 Vdc
• Reset of the connected bus line with a dedicated pu-
shbutton
Main characteristics
• Housing in plastic material
• Mounting on 35 mm rail (according to EN 60715)
• Protection degree IP20 (according to EN 60529)
• Classification climatic 3K5 and mechanical 3M2 (accor-
Datasheet STEKAG1TP_EN
1
ding to EN 50491-2)
• Pollution degree 2 (according to IEC 60664-1)
• Weight 165 g
• 4 modular units (1 UM = 18 mm)
• Dimensions 72 x 90 x 70 mm (WxHxD)
Environmental conditions
• Operating temperature: - 5 ... + 45°C
• Storage temperature: - 25 ... + 55°C
• Transport temperature: - 25 ... + 70°C
• Relative humidity: 95% not condensing
Technical data
Power supply
• Voltage 230 Vac, 50/60 Hz
• Power consumption 22 W (power losses < 3 W)
• Input current 0.1 A
Outputs
• Bus line voltage: 30 Vdc +1/-2 Vdc SELV
• Auxiliary voltage: 30 Vdc SELV
• Rated current (total outputs): 640 mA
• Buffer time: 200 ms
• Bus line connection: KNX ternminal block (black/red)
included in delivery
• Auxiliary output connection: dedicated terminal block
(yellow/white)
Switching, display and connection elements
The device is equipped with a reset pushbutton, 3 LEDs
and terminal blocks for mains voltage 230 Vac, KNX bus
line and auxiliary output.
1
7
2
3
4
1) Terminal blocks for power supply 110-230 Vac 50/60 Hz
2) Reset pushbutton
3) Reset LED (red)
4) Terminal block for KNX bus line
5) Terminal block for auxiliary output 30 Vdc
6) Overload/short circuit LED (red)
7) Output voltage LED (green)
Planning
Planning a KNX bus installation, the use of a 640 mA po-
wer supply unit requires to take into account the following
guidelines:
• the maximum number of bus devices connected is 64;
• the maximum length of a line segment is 350 m, mea-
sured along the line between the power supply and the
furthest device bus;
6
5