PULS QT40.241 3 Phase Power Supply Instruction Manual
- June 3, 2024
- PULS
Table of Contents
PULS QT40.241 3 Phase Power Supply
Read this first!
Before operating this device, please read this manual thoroughly and retain this manual for future reference! This device may only be installed and put into operation by qualified personnel. If damage or malfunction should occur during operation, immediately turn power off and send device to the factory for inspection. The device does not contain serviceable parts. The information presented in this document is believed to be accurate and reliable and may change without notice. For any clarifications the English translation will be used.
WARNING
Risk of electrical shock, fire, personal injury, or death:
- Turn power off before working on the device. Protect against inadvertent re-powering.
- Do not open, modify or repair the device.
- Use caution to prevent any foreign objects from entering the housing.
- Do not use in wet locations or in areas where moisture or condensation can be expected.
- Do not touch during power-on and immediately after power-off. Hot surfaces may cause burns.
Product Description
- The QT40.241 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 QT40.242 is the extra long-life version of the QT40.241.
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 endapplication.
- 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
enclosure 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 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 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 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 behind
the flap on the front.
The green DC OK LED reports an output voltage above 90% of the adjusted
voltage of a running device.
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 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 overtemperature or when the
“Remote OFF” signal is activated. Input voltage is required.
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 exceed +60°C. The output voltage of all devices
shall be adjusted to the same value (±100mV) in “Single Use” mode with the
same load conditions on all units, or the units can be left with the factory
settings. After the adjustments, set the unit to “Parallel Use” mode, in order
to achieve load sharing.
The “Parallel Use” mode regulates the output voltage in such a manner that the
voltage at no load is approx. 4% higher than at nominal load. 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.
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.
The device is equipped with a remote ON/OFF function to turn the output off.
For this connect pin 15 with pin 16.
The output voltage can be remotely adjusted between 14 and 28Vdc by applying a
control voltage between pin 15 and the (-) terminal. See product datasheet for
details.
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 – 28Vdc| Factory setting 24.1V
Output current| Continuous:|
| 40 – 34.3A| Below +60°C ambient
| 30 – 25.7A| At +70°C ambient
Short-term, up to 4s:
| 60 – 51.5A| Below +70°C ambient
Derate linearly between +60°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 3×400 / 480Vac
Power factor| 0.88 / 0.90| At 3×400 / 480Vac
Input inrush current| 4.5 / 4.5A peak| At 3×400 / 480Vac, temp.
independent
Efficiency| 95.3 / 95.2%| At 3×400 / 480Vac
Losses| 47.3 / 48.4W| At 3×400 / 480Vac
Hold-up time| 25 / 25ms| At 3×400 / 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| 0.8Nm / 7lb.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| 2Nm / 17.7lb.inch| For output terminals
Max. wire size (litz wire)| 1.5mm²| For signal terminals
Wire size AWG| AWG 26-14| For signal terminals
Max. wire diameter| 1.5mm| For signal terminals
Wire stripping length| 7mm / 0.28inch| For signal terminals
Size (wxhxd)| 110x124x127mm| Without DIN-rail
Weight| 1500g / 3.3lb|
Functional Diagram
Output Characteristic
Temperature Range
Headquarters: PULS GmbH, Elektrastr. 6, 81925 Munich, Germany,
+49 89 9278 0
www.pulspower.com
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