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DN4011 Installation Manual
Product Description
The DN4011 is a DIN-rail mountable single-phase-input power supply, which provides a floating,
stabilized and galvanically separated SELV/PELV output voltage.
The output of the device fulfils the requirements for a limited power source according to NEC Class 2.
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, 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. Other mounting orientations require a reduction in output current.
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 and IT mains networks. The continuous voltage
between the input terminals and the PE potential must not exceed 300Vac.
The input can also be powered from batteries or similar DC sources. The continuous voltage between
the supply voltage and the PE/ground potential must not exceed 375Vdc.
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 20A without additional protection
device. If an external fuse is utilized, do not use circuit breakers smaller than 10A B- or 6A 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 inductive or capacitive loads.
Do not apply return voltages from the load to the output terminals higher than 35V.
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.
Do not parallel devices for higher output currents.
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 39V. The output
shuts down and automatically attempts to restart.
Technical Data
All values are typical figures specified at 230Vac 50Hz input voltage, 24V
3.3A output load, 25°C ambient temperature and after a 5 minutes run-in
time unless otherwise noted.
Output voltage
DC 24V
Adjustment range
24 – 28Vdc
Output current
3.3 – 2..7A
2.5 – 2.1A
Derate linearly between +60°C and +70°C
AC 100-240V
Input voltage AC
Mains frequency
50 – 60Hz
Input current AC
1.23 / 0.68A
Power factor
0.61 / 0.56
Input voltage DC
DC 110-300V
Input current DC
0.81 / 0.29A
Input inrush current
23 / 45A pk
Efficiency
88.0 / 89.8%
Power losses
11.1 / 9.1W
Hold-up time
29/ 120ms
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)
40x124x122.5mm Without DIN-rail
Weight
480g / 1.06lb
Functional Diagram
L
(+)
Input Fuse
Inrush
N
(-)
Current
Input Filter
Limiter
Input Rectifier
Output
Overvoltage
Protection
Output Characteristic
Output voltage
Adjustment range
28V
24V
12V
0V
0A
1A
2A
3A
Temperature Range
Allowed output current at 24V
3.3A
2.5A
A: continuous
B: short term (max. 60s)
0A
-25
0
Nominal
Factory setting 24.1V
Below +60°C ambient
At +70°C ambient
±10%
±6%
At 120 / 230Vac
At 120 / 230Vac
-20% / +25%
At 110 / 300Vdc
At 120 / 230Vac, 40°C,
cold start
At 120 / 230Vac
At 120 / 230Vac
At 120 / 230Va
Output
Voltage
V
Regulator
OUT
+
+
Output
Power
Filter
Converter
-
-
DC-OK
LED
A: for 100Vac mains
B: for 120Vac mains
C: for 230Vac mains
C
A
B
4A
5A
6A
7A
Output current
B
A
+60
+70°C
Ambient temperature
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