ML50.100, ML50.109
MiniLine
24V, 2.1A, S
INGLE
P
HASE
I
NPUT
Mar. 2007 / Rev. 1.0 DS-ML50.100-EN
All parameters are specified at 24V, 2.1A, 230Vac, 25°C ambient and after a 5 minutes run-in time unless otherwise noted.
www.pulspower.com Phone +49 89 9278 0 Germany
19/20
27.8. E
XTERNAL
I
NPUT
P
ROTECTION
The unit is tested and approved for branch circuits up to 15A (UL) or 16A (IEC). External protection is only required if
the supplying branch has an ampacity greater than this. In some countries local regulations might apply so check local
codes and requirements.
If an external protective device is utilized, a minimum value is required to avoid undesired tripping of the fuse.
B-Characteristic
C-Characteristic
Ampacity max. 15A (UL), 16A (IEC)
15A (UL), 16A (IEC)
min.
10A 6A
27.9. I
NDUCTIVE AND
C
APACITIVE
L
OADS
The unit is designed to supply any type of load, including unlimited capacitive and inductive loads.
27.10. O
PERATION ON
T
WO
P
HASES
Fig. 27-7
Schematic for two phase operation
240V
+
10%
ma
x.
Fuse
L2
L1
L3
L
N
PE
Power Supply
AC
DC
internal
fuse
Instructions for two phase operation:
a)
A phase to phase connection is allowed as long as the
supplying voltage is below 240V
+10%
.
b)
Use a fuse or a circuit breaker to protect the N input. The
N input is internally not protected and is in this case
connected to a hot wire.
Appropriate fuses or circuit breakers are specified in section 27.6
“External Input Protection”.
27.11. U
SE IN A
T
IGHTLY
S
EALED
E
NCLOSURE
When the power supply is installed in a tightly sealed enclosure, the temperature inside the enclosure will be higher
than the outside. The inside temperature defines the ambient temperature for the power supply.
Results from such an installation:
Power supply is placed in the middle of the box, no other heat producing equipment inside the box
Enclosure:
Rittal Type IP66 Box PK 9510 100, plastic, 130x130x75mm
Input:
230Vac
Load:
24V,
2.1A; load is placed outside the box
Temperature inside the box:
40.8°C (in the middle of the right side of the power supply with a distance of 1cm)
Temperature outside the box:
21.9°C
Temperature rise:
18.9K
Load:
24V,
1.7A; (=80%) load is placed outside the box
Temperature inside the box:
38.7°C (in the middle of the right side of the power supply with a distance of 1cm)
Temperature outside the box:
21.7°C
Temperature rise:
17.0K
