PULS QT20.241, QT20.241-C1 Installation Manual [ml]

EN QT20.241, QT20.241-C1 Installation Manual Power Supply 3-Phase, 24V, 20A, 480W
DE QT20.241, QT20.241-C1 Installationsanleitung Stromversorgung 3-Phase, 24V, 20A, 480W
FR QT20.241, QT20.241-C1 Manuel d'installation Alimentation d'Énergie 3-Phase, 24V, 20A, 480W
ES QT20.241, QT20.241-C1 Manual de instalación Fuente De Alimentación 3-Phase, 24V, 20A, 480W
IT QT20.241, QT20.241-C1 Manuale di Installazione Gruppo di alimentazione 3-Phase, 24V, 20A, 480W
PT QT20.241, QT20.241-C1 Manual de instalação Fonte De Alimentação 3-Phase, 24V, 20A, 480W

Doc. ID: PU-347.015.yy-xxZ (2018-09-29-MR1)

Read this first! English Vor Inbetriebnahme lesen! Deutsch

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

- 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.

Risk of electrical shock, fire, personal injury, or death:

Bitte lesen Sie diese Warnungen und Hinweise sorgfältig durch, bevor Sie das Gerät in Betrieb

nehmen. Bewahren Sie die Anleitung zum Nachlesen auf. Das Gerät darf nur durch
fachkundiges und qualifiziertes Personal installiert werden. Bei Funktionsstörungen oder
Beschädigungen schalten Sie sofort die Versorgungsspannung ab und senden das Gerät zur
Überprüfung ins Werk. Das Gerät beinhaltet keine Servicebauteile. Die angegebenen Daten
dienen allein der Produktbeschreibung und sind nicht als zugesicherte Eigenschaften im
Rechtssinne aufzufassen. Im Zweifelsfall gilt der englische Text.

WARNUNG

- Schalten Sie die Eingangsspannung vor Installations-, Wartungs- oder Änderungsarbeiten
ab und sichern Sie diese gegen unbeabsichtigtes Wiedereinschalten.

- Führen Sie keine Änderungen oder Reparaturversuche am Gerät durch. Gerät nicht öffnen!

- Verhindern Sie das Eindringen von Fremdkörpern, wie z.B. Büroklammern und Metallteilen.

- Betreiben Sie das Gerät nicht in feuchter Umgebung oder in einer Umgebung, bei der mit
Betauung oder Kondensation zu rechnen ist.

- Gehäuse nicht während des Betriebes oder kurz nach dem Abschalten berühren. Heiße
Oberflächen können Verletzungen verursachen.

Missachtung nachfolgender Punkte kann einen elektrischen
Schlag, Brände, schwere Unfälle oder Tod zur Folge haben:

A lire avant mise sous tension! Français Lea primero! Español

Veuillez lire ces instructions de montage et d'entretien avant de mettre l'alimentation sou s
tension. Conservez ce manuel qui vous sera toujours utile. Cette alimentation ne doit être
installée que par du personnel qualifié et compétent. En cas de dommage ou
dysfonctionnement, coupez immédiatement la tension d’alimentation et retournez l’appareil à
l’usine pour vérification. ! L’alimentation ne contient pas de pièces échangeables Les
données indiquées dans ce document servent uniquement à donner une description du
produit et n'ont aucune valeur juridique. En cas de divergences, le texte anglais fait foi.

AVERTISSEMENT

- Mettre l’alimentation hors tension avant toute intervention sur celle-ci et s'assurer qu'il n'y
a pas risque de redémarrage.

- Ne pas ouvrir, modifier ou réparer l'alimentation.

- Veiller à ce qu'aucun objet ne rentre en contact avec l'intérieur de l'alimentation
(trombones, pièces métalliques).

- Ne pas faire fonctionner l'appareil dans un environnement humide ou dans un
environnement où il peut y avoir de la condensation.

- Ne pas toucher le carter pendant le fonctionnement ou directement après la mise hors
tension. Surface chaude risquant d’entraîner des blessures.

Prendre en compte les points suivants, afin
d'éviter toute détérioration électrique, incendie,
dommage aux personnes ou mort:

Conserve este manual como referencia para futuras consultas. La fuente de alimentación solo

puede ser instalada y puesta en funcionamiento por personal cualificado. Por favor lea
detenidamente este manual antes de conectar la fuente de alimentación. Si se produce un fallo
o mal funcionamiento durante la operación, desconecte inmediatamente la tensión de
alimentación. En ambos casos, el equipo debe ser inspeccionado en fábrica. La información
presentada en este documento es exacta y fiable en cuanto a la descripción del producto y
puede cambiar sin aviso. En casa de duda, prevalece el texto inglés.

- Desconectar la tensión de red antes de trabajar en la fuente de alimentación. Evite una

ADVERTENCIA

posible reconexión involuntar ia.

- No realizar ninguna modificación o reparación de la unidad. No abrir la unidad.

- Evitar la introducción en la carcasa de objetos extraños.

- No usar el equipo en ambientes húmedos. No operar el equipo en ambientes donde se
espere la formación de rocío o condensación.

- No tocar durante el funcionamiento ni inmediatamente después del apagado. El calor de la
superficie puede causar quemaduras graves.

Riesgo de descarga eléctrica, incendio, accidente
grave o muerte:

Leggere prima questa parte! Italiano Leia primeiro! Portuguès

Prima di collegare il sistema di alimentazione elettrica si prega di leggere attentamente le
seguenti avvertenze. Conservare le istruzioni per la consultazione futura. Il sistema di
alimentazione elettrica deve essere installato solo da personale competente e qualificato. Se
durante il funzionamento si verificano anomalie o guasti, scollegare immediatamente la
tensione di alimentazione. In entrambi i casi è necessario far controllare l'apparecchio dal
produttore! I dati sono indicati solo a scopo descrittivo del prodotto e non vanno considerati
come caratteristiche garantite dell'apparecchio. In caso di differenze o problemi è valido il
testo inglese

AVVERTENZA

- Prima di eseguire interventi di installazione, di manutenzione o di modifica scollegare la
tensione di rete ed adottare tutti i provvedimenti necessari per impedirne il ricollegamento
non intenzionale.

- Non tentare di aprire, di modificare o di riparare da soli l'apparecchio.

- Impedire la penetrazione di corpi estranei nell'apparecchio, ad esempio fermagli o altri
oggetti metallici.

- Non far funzionare l'apparecchio in un ambiente umido. Non far funzionare l'apparecchio
in un ambiente soggetto alla formazione di condensa o di rugiada.

- Non toccare quando acceso e subito dopo lo spegnimento. La superficie calda può
causare scottature.

Il mancato rispetto delle seguenti norme può
provocare folgorazione elettrica, incendi, gravi
incidenti e perfino la morte:

Recomendamos a leitura cuidadosa das seguintes advertências e observações, antes de

colocar em funcionamento a fonte de alimentação. Guarde as Instruções para futura consulta,
em casos de dúvida. A fonte de alimentação deverá ser instalada apenas por profissionais da
área, tecnicamente qualificados. Se por acaso, durante a utilização ocorrer algum defeito de
funcionamento ou dano, desligue imediatamente a tensão de alimentaçã o. Em a mbos os casos,
será necessária uma verificação na Fábrica! Os dados mencionados têm como finalidade
somente a descrição do produto, e não devem ser interpretados como propriedades garantidas
no sentido jurídico. Em caso de duvidas aplica-se o texto em inglês.

- Antes de trabalhos de instalação, manutenção ou modificação, desligue a tensão de

ATENÇÃO

alimentação, protegendo-a contra uma nova ligação involuntária.

- Não efectue nenhuma modificação ou tentativa de reparação no aparelho. Quando
necessário contacte o seu distribuidor. Não abra o aparelho.

- Proteger a fonte de alimentação contra a introdução inadvertida de corpos metálicos, como
por ex., clipes ou outras peças de metal.

- Não usar o aparelho em ambientes húmidos. Não usar o aparelho em ambientes propensos
a condensações.

- Não tocar enquanto estiver em funcionamento, nem após a desligar. A superficie poderá
estar quente e provocar lesões.

A não observância ou o incumprimento dos pontos a seguir
mencionados, poderá causar uma descarga elétrica, incêndios,
acidentes graves ou morte:

Headquarters: PULS GmbH, Elektrastr. 6, 81925 Munich, Germany, www.pulspower.com

Germany [phone]
China [phone]

France [phone]
North America [phone]

The information in this document is believed to be accurate and reliable and may change without notice.

Austria [phone]
Singapore [phone]

Switzerland [phone]
United Kingdom [phone]

QT20.241, QT20.241-C1 Installation Manual

EN

Product Description

The QT20.241 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 QT20.241-C1 device is the same as the QT20.241 but with conformal coated pc-boards.

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.

Installation Instructions

Install device in an enclosure providing protection again s t 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.
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.

Above 2000m the overvoltage category is reduced to level II.

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 400Vac. 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 6000m (19685ft). See additional requirements in the product
datasheet for use above 2000m (6560ft).
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 16A (IEC) and 15A (UL) without
additional protection device. If an external fuse is utilized, do not use circuit breakers smaller than 6A
B- or 3A 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.

Installation Instructions for Hazardous Location Areas

The device is suitable for use in Class I Division 2 Groups A, B, C, D locations.
Substitution of components may impair suitability for this environment.
Do not disconnect the device or operate the voltage adjustment unless power has been switched off or

the area is known to be non-hazardous.

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 volt a g e s from t h e l o a d t o t h e o u t p u t termi n a l s h i g h e r t h a n 3 4V.
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 or too high temperature. 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.
The device is designed to deliver 30A output current for up to 4s with nominal output voltage.
Devices can be paralleled to increase the output power. The ambient temperature is not allowed to
exceed +60°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 25A 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 35V. 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, 20A 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:
20 – 17.5A Below +60°C ambient
15 – 13.1A At +70°C ambient
Short-term, up to 4s:
30 – 26.0A Below +70°C ambient
Derate linearely between +60°C and +70°C
Input voltage AC 3AC 380 - 480V ±15%
Mains frequency 50 – 60Hz ±6%
Input current AC 0.79 / 0.65A At 3x400 / 480Vac
Power factor 0.94 / 0.95 At 3x400 / 480Vac
Input inrush current 3 / 3A peak At 3x400 / 480Vac,

Efficiency 95.0 / 94.8% At 3x400 / 480Vac
Losses 25.3 / 26.4W At 3x400 / 480Vac
Hold-up time 22 / 22ms 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 10mm / 0.4inch
Size (wxhxd) 65x124x127mm Without DIN-rail
Weight 870g / 1.92lb

temp. independent

Functional Diagram

Voltage

Power

Converter

Regulator

Output

Filter

DC-ok
Relay

L1

Input Filter

L2

Input Rectifier
Inrush Current

L3

Limiter

Temper-

ature
Shut­down

PFC

Converter

Output
Power

Manager

Output

Over-

Voltage

Protection

V

OUT

+
+

-

-

Overload
LED

DC-OK
LED

13

DC-OK

14

Contact

Output Characteristic

Output voltage

28V
24V

12V

0V

A: continuous
B: for 4s

5A

15A 20A 25A0A

10A 30A

Adjustment range

A

Output current

B

35A

Temperature Range

Allowed output current at 24V

30A

20A
15A

A: continuous
B: short term (typ. 4s)

0A

-25

0 +70°C

B

A

+60

Ambient temperature