10
Rockwell Automation Publication 1606-RM109A-EN-P - August 2020
Power Supply —12V, 10 A, 120 W, Single Phase
O
utput
The output provides a SELV/PELV rated voltage, which is galvanically isolated
from the input voltage.
The device is designed to supply any kind of loads, including capacitive and
inductive loads. If large capacitors, such as electric double layer capacitors
(EDLCs) or “UltraCaps” with a capacitance > 0.3 F are connected to the output,
the unit might charge the capacitor in an intermittent mode.
The output is electronically helps protect against overload, no-load, and short-
circuits. If there is a protection event, audible noise occurs.
Attribute
Value
Notes
Output voltage
Nom 12V
—
Adjustment
range
Min
12…15V
Guaranteed value
Max
16.0V
This is the maximum output voltage which can occur at the clockwise end
position of the potentiometer due to tolerances. It is not a guaranteed
value which can be achieved.
Factory settings Typ
12.0V
±0.2%, at full load and cold unit
Line regulation
Max
10 mV
Between 85… 300V AC
Load regulation Max
50 mV
Between 0A and 12A, static value
Ripple and noise
voltage
Max
50 mVpp
Load >0.3A, Bandwidth 20 Hz to 20MHz, 50Ohm
Max
200 mVpp
Load <0.3A, Bandwidth 20 Hz to 20MHz, 50Ohm
Output current
Nom
12 A
(1)
(1)
This current is also available for temperatures up to +70 °C (158 °F)with a duty cycle of 10% and/ or not longer than 1 minute
every 10 minutes.
At 12V and an ambient temperatures below 45 °C (113 °F)
10 A
At 12V and 60 °C (140 °F) ambient temperature
7.5 A
At 12V and 70 °C (158 °F) ambient temperature
9.6 A
(2)
(2) At heavy overloads (when output voltage falls below 7V), the power supply delivers continuous output current for 1s. After
this, the output is switched off for approx. 9s before a new start attempt is automatically performed. This cycle is repeated
as long as the overload exists. If the overload has been cleared, the device will operate normally. See
.
At 15V and an ambient temperatures below 45 °C (113 °F)
8.0 A
At 15V and 60 °C (140 °F) ambient temperature
6.0 A
At 15V and 70 °C (158 °F) ambient temperature
Derate linearly between 45 …70 °C (113…158 °F)
Fuse breaking
current
Typ
30 A
Up to 12 ms once every five seconds, see
. The fuse braking
current is an enhanced transient current which helps to trip fuses on
faulty output branches. The output voltage stays above 10V.
Overload behavior
Continuous
Output voltage > 7V DC, see
.
Intermittent
Output voltage < 6V DC, see
Overload/ short-
circuit current
Max
14.2 A
Typ
15 A
Intermittent current peak value for typical 1 s Load impedance 50 mOhm,
see
. Discharge current of output capacitors is not included.
Max
5 A
Intermittent current average value (R.M.S.) Load impedance 50 mOhm,
see
.
Output
Typ
2 700 μF
Included inside the power supply
Back-feeding
loads
Max
25V
The unit is resistant and does not show malfunctioning when a load feeds
back voltage to the power supply. It does not matter whether the power
supply is on or off. The absorbing energy can be calculated according to
the built-in large sized output capacitor.
