ML120.244
MiniLine-2
24V,
5A,
S
INGLE
P
HASE
I
NPUT
22.3.
C
HARGING OF
B
ATTERIES
The power supply cannot be used to charge batteries since the output voltage is not adjustable and cannot be set to
the required end-of-charge voltage.
22.4.
E
XTERNAL
I
NPUT
P
ROTECTION
The unit is tested and approved for branch circuits up to 20A. An external protection is only required, if the supplying
branch has an ampacity greater than this. Check also local codes and local requirements. In some countries local
regulations might apply.
If an external fuse is necessary or utilized, minimum requirements need to be considered to avoid nuisance tripping of
the circuit breaker. A minimum value of 10A B- or 6A C-Characteristic breaker should be used.
22.5.
P
ARALLEL
U
SE TO
I
NCREASE
O
UTPUT
P
OWER
Unit A
AC
DC
Unit B
AC
DC
-
+
-
+
Load
+
-
All MiniLine power supplies with 24V output voltage can be paralleled to
increase the output power. The ML120.244 has no feature included which
balances the load current between the power supplies. Usually the power
supply with the higher adjusted output voltage draws current until it goes into
current limitation. This means no harm to the power supply as long as the
ambient temperature stays below 45°C.
If more than three units are connected in parallel, a fuse or circuit breaker
with a rating of 8A or 10A is required on each output. Alternatively, a diode or
redundancy module can also be utilized.
Keep an installation clearance of 15mm (left / right) between two power supplies and avoid installing the power
supplies on top of each other. Do not use power supplies in parallel in mounting orientations other than the standard
mounting orientation (input terminals on bottom and output terminals on the top of the unit) or in any other
condition where a derating of the output current is required.
Be aware that leakage current, EMI, inrush current, harmonics will increase when using multiple power supplies.
Apr. 2013 / Rev. 1.1 DS-ML120.244-EN
All parameters are specified at 24V, 5A, 230Vac input, 25°C ambient and after a 5 minutes run-in time unless otherwise noted.
www.pulspower.com Phone +49 89 9278 0 Germany
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