GB
Switching power
supply: 12-24 V
DC, minimum out-
put current: 3A
The rails are connected to the booster via the enclosed plug-in terminal. Use cable
cross-sections of between 0.5 mm2 and 1.5 mm2 for supply purposes. The best
option when dealing with longer track sections is to provide a supply approximately
every 2 metres.
ATTENTION: If the power
consumption constantly exceeds 2.5
A, the section is overloaded and must
be partitioned (an additional booster is
required). This ensures a small reserve
in order to be able to safely switch
points or similar devices.
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Connecting the booster - Power supply unit
Only switching power supplies with DC voltage output may be used to
supply the booster with power. Under no circumstances may the Z21 booster
be supplied with AC voltage, e.g. with a conventional transformer.
Ensure that each Z21 booster has its own power supply unit otherwise an
impermissible short circuit to ground can easily occur which could destroy
your Z21 booster or other digital components!
Tip: We recom-
mend the Roco
switching power
supply 10851.
Connecting the booster - Track output
Information: How to calculate the power consump-
tion of a H0 system:
• Stationary locomotives with light: Approx. 100 mA
• Moving locomotives (depending on size and load):
Between 300 and 600mA
• Illuminated carriages: Approx. 30 mA per bulb
(Attention: Significant fluctuations.)
• Digital coupling or smoke generator: Approx.
100mA
• Digital points drives or points decoder: Approx. 500
mA reserve
Information: Ensure that the
connecting tracks do not contain
any condensers (often required in
analogue mode).
15.04.2016 10:51:08