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Siemens Desigo Room automation - Engineering, mounting and installation CM111043en_14
Smart Infrastructure Wiring of power lines 2020-10-30
6.2 AC 230 V power lines
6.2.1 DXR2, RXM
· The sizing and fusing of the power lines are oriented to overall load and
local regulations.
· Devices with AC 230 V supply can be wired in line topology.
However, the next device has no AC 230 V power when a room automation
station is removed. The connection exists only on the board, but not on the
terminal block.
DXR2 RXM...
· External fuse max. T 10 A (protection of the PCB tracks to the load circuits /
relays). Max. load of the lines: 6 A.
Each device fused
separately
Each fuse max. T 10 A
AC 230 V
Load LoadLoadLoad
N L N L N L N L
A group of devices fused
by one fuse
Common fuse max. T 10 A
.