EN
DN4033 Installation Manual
Product Description
The DN4033 is a DIN-rail mountable power supply for three-phase mains systems, which provides a
floating, stabilized and galvanically separated SELV/PELV output voltage.
Intended Use
This device is designed for installation in an enclosure and is intended for commercial use, such as in
industrial control, process control, monitoring and measurement equipment or the like.
Do not use this device in equipment, where malfunctioning may cause severe personal injury or
threaten human life without additional appropriate safety devices, that are suited for the end-
application.
If this device is used in a manner outside of its specification, the protection provided by the device may
be impaired.
Installation Instructions
Install device in an enclosure providing protection against electrical, mechanical and fire hazards.
Install the device onto a DIN-rail according to EN 60715 with the input terminals on the bottom of the
device.
Make sure that the wiring is correct by following all local and national codes. Use appropriate copper
cables that are designed for a minimum operating temperature of 60°C for ambient temperatures up to
+45°C, 75°C for ambient temperatures up to +60°C and 90°C for ambient temperatures up to +70°C.
Ensure that all strands of a stranded wire enter the terminal connection. Use ferrules for wires on the
input terminals.Unused screw terminals should be securely tightened.
The device is designed for pollution degree 2 areas in controlled environments. No condensation or
frost is allowed.
The enclosure of the device provides a degree of protection of IP20. The housing does not provide
protection against spilled liquids.
The device is designed for overvoltage category II zones. Below 2000m altitude the device is tested
for impulse withstand voltages up to 4kV, which corresponds to OVC III according to IEC 60664-1.
The device is designed as “Class of Protection I” equipment according to IEC 61140. Do not use
without a proper PE (Protective Earth) connection.
The device is suitable to be supplied from TN, TT or IT mains networks. The continuous voltage
between the input terminals and the PE potential must not exceed 500Vac. The device is not designed
to be used on corner grounded delta systems.
A disconnecting means shall be provided for the input of the device.
The device is designed for convection cooling and does not require an external fan. Do not obstruct
airflow and do not cover ventilation grid!
The device is designed for altitudes up to 5000m (16400ft). Above 2000m (6560ft) a reduction in
output current is required.
Keep the following minimum installation clearances: 40mm on top, 20mm on the bottom, 5mm left and
right side. Increase the 5mm to 15mm in case the adjacent device is a heat source. When the device
is permanently loaded with less than 50%, the 5mm can be reduced to zero.
The device is designed, tested and approved for branch circuits up to 32A (IEC) and 30A (UL) without
additional protection device. If an external fuse is utilized, do not use circuit breakers smaller than 6A
B- or C-Characteristic to avoid a nuisance tripping of the circuit breaker.
The maximum surrounding air temperature is +70°C (+158°F). The operational temperature is the
same as the ambient or surrounding air temperature and is defined 2cm below the device.
The device is designed to operate in areas between 5% and 95% relative humidity.
Functional Description
The output is electronically protected against no-load, overload and short circuit and can supply any
kind of loads, including unlimited inductive and capacitive loads.
Do not apply return voltages from the load to the output terminals higher than 35Vdc.
The output voltage can be adjusted with a small flat-blade screwdriver on the front of the unit.
The green DC-OK LED reports a voltage on the output terminals above 21V.
The DC-OK relay monitors the output voltage and the contact is closed when the DC-OK LED is on.
Contact ratings: 60Vdc 0.3A, 30Vdc 1A, 30Vac 0.5A for resistive loads.
The device is equipped with an over-temperature protection. In case of a high temperature, the output
shuts down and starts automatically again after cooling off.
Devices can be paralleled to increase the output power. The ambient temperature is not allowed to
40°C. The output voltage shall be adjusted to the same value (±100mV) with the same load
conditions on all devices, or the devices can be left with the factory settings. If more than three
devices are connected in parallel, a diode, fuse or circuit breaker with a rating of 15A or 16A is
required on each output.
Same devices can be connected in series for higher output voltages. It is allowed to connect as many
devices in series as needed, providing the sum of the output voltage does not exceed 150Vdc.
In case of an internal defect, a redundant circuit limits the maximum output voltage to 32V. The output
shuts down and automatically attempts to restart.
Technical Data
All values are typical figures specified at 3x 400Vac 50Hz input voltage,
symmetrical phase voltages, 24V 10A output load, 25°C ambient
temperature and after a 5 minutes run-in time unless otherwise noted.
Output voltage
DC 24V
Nominal
Adjustment range
24 – 28Vdc
Factory setting 24.1V
Output current
12.0 – 10.3A
Below +45°C ambient
10.0 – 8.6A
At +60°C ambient
7.5 – 6.5A
At +70°C ambient
Derate linearly b45°C and +70°C
Input voltage AC
AC 380 - 480V
-15% / +20%
Mains frequency
50 – 60Hz
±6%
Input current AC
0.7 / 0.6A
At 3x400 / 480Vac
Power factor
0.53 / 0.52
At 3x400 / 480Vac
Input inrush current
4 / 4A peak
At 3x400 / 480Vac
Efficiency
92.8 / 92.9%
At 3x400 / 480Vac
Losses
18.6 / 18.3W
At 3x400 / 480Vac
Hold-up time
34 / 54ms
At 3x400 / 480Vac
Temperature range
-25 to +70°C
Max. wire size (litz wire)
4mm²
Wire size AWG
AWG 20-10
Max. wire diameter
2.8mm
Wire stripping length
7mm / 0.28inch
Tightening torque
1Nm / 9lb.inch
Size
(wxhxd)
62x124x122.5mm Without DIN-rail
Weight
770g / 1.7lb
Functional Diagram
+
+
-
-
Output
Over-
Voltage
Protection
PFC
Inductor
Voltage
Regulator
Power
Converter
Output
Filter
Output
Power
Manager
Temper-
ature
Shut-
down
Input Fuse
Input Filter
Input Rectifier
Inrush Current
Limiter
V
OUT
L2
L3
DC-OK
LED
L1
DC-OK
Contact
DC-ok
Relay
13
14
Output Characteristic
Output voltage
16A
24V
Output current
12V
0V
2A
6A
8A
12A
0A
Adjustment range
28V
4A
10A
14A
18A 20A 22A
Temperature Range
Allowed output current at 24V
Ambient temperature
0A
-25
A: continuous
B: short term (max. 60s)
12A
+25
0
+45
+70°C
7.5A
10A
+60
A
B
