EN
QT40.241-B2 Installation Manual
Product Description
The QT40.241-B2 is a DIN-rail mountable power supply for three-phase mains systems, which
provides a floating, stabilized and galvanically separated SELV/PELV output voltage.
The device is equipped with an IO-Link Interface V1.1 to parameterize and access data.
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 malfunction may cause severe personal injury or threaten human life.
If this device is used in a manner outside of its specification, the protection provided by the device may
be impaired.
Do not connect the IO Link port to any other equipment except industrial control equipment.
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. 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 enclosure does not provide
protection against spilled liquids.
The isolation of the device is designed to withstand impulse voltages of overvoltage category 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 terminal and the PE potential must not exceed 576Vac. 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 and over voltage category 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.
The supply voltage for the IO-Link must be powered from a PELV or SELV source or an "Isolated
Secondary Circuit" in order to maintain a SELV or PELV output.
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 35V.
The maximum output voltage can be limited with a small flat-blade screwdriver on the front. The output
voltage itself can be set between 15Vdc and the adjusted maximum output voltage limiter
potentiometer by IO-Link command.
The green DC-OK LED reports an output voltage above 90% of the adjusted voltage of a running
device.
The red overload LED is on when the output voltage falls below 90% of the adjusted value
or in case
of a short circuit in the output. The LED is flashing, when the device has switched off due to over-
temperature or when the unit is turned off by IO-Link command.
The red communication LED indicates sufficient supply voltage and data connection of the IO-Link
interface.
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.
The device is designed to deliver 60A output current for up to 5s with nominal output voltage.
Devices can be paralleled to increase the output power. The ambient temperature is not allowed to
55°C. The output voltage of all devices shall be set to the same value on all units by IO-Link
command. If more than three devices are connected in parallel, a diode, fuse or circuit breaker with a
rating of 50 or 63A is required on each output. If a current share between devices is required set
jumper into “parallel mode” and follow the instruction in the datasheet.
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 40A 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 – 28.5Vdc
Factory setting 24.1V
Output current
Continuous:
40 – 33.7A
Below +55°C ambient
27.5 – 23.2A
At +70°C ambient
Short-term, up to 5s:
60 – 50.5A
Below +70°C ambient
Derate linearly b55°C and +70°C
Input voltage AC
3AC 380 - 480V
-15% / +20%
Mains frequency
50 – 60Hz
±6%
Input current AC
1.65 / 1.35A
At 3x400 / 480Vac
Power factor
0.88 / 0.90
At 3x400 / 480Vac
IO-Link input current
30mA Maximal
value
Input inrush current
4.5 / 4.5A peak
At 3x400 / 480Vac,
temp. independent
Efficiency
95.3 / 95.2%
At 3x400 / 480Vac
Losses
47.3 / 48.4W
At 3x400 / 480Vac
Hold-up time
25 / 25ms
At 3x400 / 480Vac
Temperature range
-25 to +70°C
Max. wire size (litz wire)
4mm²
For input terminals
Wire size AWG
AWG 20-10
For input terminals
Max. wire diameter
2.8mm
For input terminals
Wire stripping length
7mm / 0.28inch
For input terminals
Tightening torque
1Nm / 9lb.inch
For input terminals
Max. wire size (litz wire)
10mm² For
output
terminals
Wire size AWG
AWG 22-8
For output terminals
Max. wire diameter
5.2mm For
output
terminals
Wire stripping length
12mm / 0.5inch
For output terminals
Tightening torque
2.3Nm / 20lb.inch
For output terminals
IO-Link connection
A-Coded M12
male
On the device, female
required on the cord.
Size (wxhxd)
110x124x127mm Without
DIN-rail
Weight
1500g / 3.3lb
Functional Diagram
L2
L3
L1
+
+
-
-
Output
Over-
Voltage
Protection
PFC
Converter
Power
Converter
Output
Filter
Output
Power
Manager
Temper-
ature
Shut-
down
Input Fuse
Input Filter
Input Rectifier
Inrush Current
Limiter
DC-OK
LED
Overload
LED
IO-Link
IO-Link
Interface
M12
V
OUT
Limiter
Output
Voltage
Regulator
Single /
Parallel
Comm-
unication
Output Characteristic
Output voltage in single-use mode
70A
24V
Output current
12V
0V
10A
30A
40A
50A
0A
Adjustment range
28V
20A
60A
B
A
A: continuous
B: for 5s
Temperature Range
Allowed output current at 24V
Ambient temperature
0A
-25
A: continuous
B: short term (typ. 5s)
60A
0
+70°C
27.5A
B
40A
+55
A
