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INTENDED USE
These are isolated devices suitable for SELV
and PELV circuitry and are designed to be
mounted on DIN rail and installed inside a
protective enclosure. They are intended for
general use such as in industrial control,
communication, and instrumentation
equipment.
Do not use these devices in applications
where malfunction may cause injury or death.
ENVIRONMENTAL CHARACTERISTICS
Installation in a Pollution Degree 2
environment.
Do not use in wet area or subject to moisture.
Carefully recycle the product and related
batteries according to local regulations.
USER INSTRUCTIONS
1) DESCRIPTION
DIN rail mountable primary switched-mode power supply with 90 - 264 VAC (110 - 345 VDC) input, suitable for single phase mains line and DC line.
2) INSTALLATION
Use DIN-rails according to EN60715. Installation should be made vertically (see Fig.4). For better device stability fix the rail to the wall close to the point where the device
is to be mounted. In order to guarantee sufficient convection, we recommend observing a minimum distance to other modules (see Fig.3).
The device is provided with a thermal protection; a limited air flow can cause the thermal protection tripping.
The SMPS automatically restarts after cooling. To get normal operation reduce the temperature of the air surrounding the power supply, increase the ventilation or reduce
the load (see Fig.8)
3) CONNECTIONS
The device is equipped with screw terminal blocks. To avoid sparks, do not connect or disconnect the connectors before having previously turned-off input power and
waited for internal capacitors discharge (minimum 1 minute)
In order to comply with UL certification, use appropriate copper cables of indicated cross section, designed for an operating temperatures of:
60°C for ambient up to 45°C
75°C for ambient up to 60°C
90°C for ambient up to 70°C
Strip the connecting ends of the wires according to the indication and ensure that all strands of a stranded wire enter the terminal connection (see Fig.5)
4) INPUT PROTECTION
The device input is provided with varistors against overvoltage. Input is provided with internal fuses 8AT / 250 VAC, thus an external short circuit / overcurrent protection
must be provided by the end user (see Fig.6).
For operation on a single-phase system, a protection fuse on the phase must be provided.
Surge protection: it is strongly recommended to provide external surge arresters (SPD) according to local regulations.
5) AC INPUT CONNECTION
The device can be connected to single phase AC line with rated Vin 120 - 240 VAC (see Fig.7). Please connect the PE first.
6) DC INPUT CONNECTION
Connect L terminal to (+) positive pole, N terminal to (-) negative pole and
wind turbine applications (see Fig.7).
7) OUTPUT CONNECTION
The device is suitable for SELV and PELV circuitry. Pay attention to LDC480-72, LDC480-72P, LDC480-72H and LDC480-72PH are not SELV.
Vout can be adjusted with a potentiometer to a wide range (see Fig.1). Check Vout before connecting the power supply to the load. With output voltage set to the max.
value, the continuous [current x voltage] must not exceed the nominal power.
8) PARALLEL CONNECTION AND REDUNDANCY
Power supplies can be connected in parallel to increase power. For paralleling for power set the Ilim jumper to C.C. algorithm. Vout must be set uniformly (±100 mV) on
each power supply and the wiring must be symmetrical to ensure an equal current distribution.
Models with "P" suffix have an integrated ORing circuit.
For redundant connection, use the Models "P" or an external isolating device must be used (see accessory device).
9) OUTPUT PROTECTION
The device is protected against overload (OL) / short circuit (SC) / overvoltage (OV) / overtemperature (OT). OL and SC: are controlled by a hiccup mode or a constant
current (C.C.) mode protection with the following behaviour.
The Hiccup mode orC.C. mode are selectable with Jumper (see Fig.1)
OL behaviour in hiccup mode: Max. OL = 1.5 x Inthe output voltage remains constant at nominal voltage for 5s and after that time the device starts an ON/OFF cycle.
OL behaviour inC.C. mode:the maximum output current is limited at 1.1 x In if the load resistance is further decreased the output voltage starts to drop.
SC behaviour in hiccup mode: the device supplies 1.5 x In for 5 s, after that time it switches off for 10s. The ON/OFF cycle is repeated continuously.
SC behaviour inC.C. mode: the device supplies 1.1 x In continuously into the short circuit without switching off
Output OV circuit protection: the output is protected against potential OV due to internal malfunction or coming from the load for Vout Vnom x 1.2– 1.3, depending on
the model.
OT protection: turns off the device if the internal temperature exceeds a safe limit. The device restarts automatically after cooling down. To recover to normal operation
reduce air temperature surrounding the power supply, increase cooling or reduce load (see Fig.8).
10) FEEDING DC MOTORS
It is possible to feed DC motors considering that when a motor starts-up under effort its consumption is much higher than the nominal current and it can trigger
overcurrent protection (see accessory device). For these applications the C.C. (Constant Current) mode of current limitation is recommended.
NOTE: motors can generate high conducted noise on the DC line. Therefore it is not recommended to feed on the same line motors and equipment sensitive to noise.
11) OPERATION WITH BATTERY
When a battery is connected in parallel to the Output for backup purposes; the LDC480 must be set on C.C. mode to avoid battery over-charging (see accessory device).
BESTIMMUNGSGEMÄßER BETRIEB
Es handelt sich um galvanisch getrennte Geräte,
die für SELV- und PELV-Anwendungen geeignet
sind und für die Montage auf DIN-Schienen und die
Installation in einem Schutzgehäuse konzipiert
sind. Sie sind für den allgemeinen Gebrauch wie
z.B. in industriellen Steuer-, Kommunikations- und
Automatisierung-Anwendungen vorgesehen.
Verwenden Sie diese Geräte nicht in
Anwendungen, bei denen eine Fehlfunktion zu
Verletzungen oder zum Tod führen kann.
UMGEBUNGSBEDINGUNGEN
Installation in einer Umgebung mit
Verschmutzungsgrad 2.
Nicht in nassen Bereichen oder unter Feuchtigkeit
verwenden.
Das Gerät und die zugehörigen Batterien sind
entsprechend den lokalen Vorschriften zu recyceln
bzw. zu entsorgen.
terminal to GND. Rated voltage 110 – 345 VDC. The device is also suitable for photovoltaic or
Manufacturer
300 Executive Drive, Suite 300
West Orange, NJ 07052
USO PREVISTO
I dispositivi sono isolati, adatti per applicazioni
SELV e PELV, sono dotati di aggancio per il
montaggio su guida DIN all'interno di quadri
elettrici o contenitori di protezione, per
l'utilizzo con controllori industriali, unità di
comunicazione o apparecchi di misura.
Non utilizzare in applicazioni in cui un
eventuale guasto può comportare rischio di
lesioni o di morte.
CARATTERISTICHE AMBIENTALI
Usare in ambienti con Grado di Inquinamento
2.
Non far funzionare l'apparecchio in un
ambiente umido o soggetto a formazione di
condensa. Riciclare il prodotto e le batterie
collegate, nel rispetto delle normative locali
vigenti.
Asia-Pacific
Bel Fuse Inc.
+86 755 2988 5888
USA
UTILISATION
Les produits sont isolés, appropriés pour les
circuits TBTS et TBTP et sont équipés d'un
crochet pour montage sur rail DIN dans des
armoires ou conteneurs de protection, pour
utilisation avec les contrôleurs industriels, des
modules de communication ou des unités de
mesure.
Ne pas utiliser ces dispositifs dans une
application où un dysfonctionnement pourrait
entraîner le risque des blessures ou de mort.
CARACTÉRISTIQUES ENVIRONMENTALES
Utiliser les produits dans des environnements
avec degré de pollution 2.
Ne pas employer l'appareil dans un
environnement humide ou soumis à la
condensation. Recycler les produits et les
batteries, conformément à la réglementation
locale.
Europe, Middle East
North America
+353 61 49 8941
+1 866 513 2839
belfuse.com/power-solutions
© 2023 Bel Fuse Inc.
BCM.00407_AG
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