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FLEX!
Your freedom of choice in power supply
Extremely compact design
Input voltages 115 - 230 - 400 - 500Vac
Single-phase, two-phase, three-phase
voltage input from 115 to 500 Vac
 Output 12 - 24 - 48Vdc
 Output protection mode, selectable among
Hiccup, Manual Restart and Fold Back
Temperature Operation range: from -25/+70°C
 DIN rail mounting: fast and reliable clip on device
Flexible power
from 100% till 150%
Flexible input
from 115 till 500Vac
Flexible short circuit
and overload protection
FLEX!
A new range of stabilized power supplies for industrial use

Based on Semi-resonant Switching Technology: high
performance till 93% and highly dynamic output power.

Very compact in size and cost-effective, they are the perfect
choice when power supply is needed for electronic loads,
PLCs, sensors, resistive, inductive and capacitive loads.

One single article in your stock suits all input voltage
options.

High reliability and durability: MTBF values up to 500.000
hours. 3 years Warranty.
FLEX! line products
Model
Output
Current
A @40°C
Input
Voltage
Vac
Output
voltage
Vdc
FLEX6024A
2.5
115 - 230
24
FLEX9024A
5
115 - 230
24
FLEX17024A
7.5
115 - 230
24
FLEX28024A
15
115 - 230
24
FLEX50024A
25
115 - 230
24
FLEX9024B
5
230-400-500
24
FLEX17024B
7.5
230-400-500
24
FLEX28024B
15
230-400-500
24
FLEX50024B
25
400-500 3ph
24
FLEX! line products
Very small
dimensions
The higher performances obtained with the FLEX! line, allow almost half
dimensions as conventional technology and higher performances. An example
is Flex6024A 60W with maximum current till 6A. In permanent duty at 40°C it
can deliver 3A at 24Vdc.
115mm
100mm
50mm
50mm
Power supply
actually in the
market
Flex6024A
Wide Range input voltage
230-400-500 Vac
FLEX! Products 90, 170 and 280 B, can be used with the most
common mains voltage input
It simplifies stock management.
230 Vac
400 Vac
500 Vac

Just One Power
Supply for all needs


Do you need more current?
Do you need a wider operating temperature range?
FLEX! fits all applications
with
Flex 17024…
We can obtain more current …

7.5 A at 40 °C

Max current at 9A (3 min.)
… Or we can obtain a higher
operating temperatures till
70°C with

5 A at 60 °C

Max current 9A (3 minutes)
Higher Current / Power
100% Power 60°C
FLEX! supplies 50% more permanent
current in applications at 40°C.
During transients FLEX! can supply up
to 100% more current than rated. As a
consequence it is not necessary to
step up the size of the power supply to
meet peak load requirements.
150% Power
rispetto a 60°C
Easy parallel for
double power



FLEX! 280 e 500 can be easily connected in parallel to
increase available power.
They don’t need a centesimal adjustment, just use a tester
to regulate the first and than the second.
Just remove the jumper and it is done.
Double Power
Remove Jumpers
“Power Good”
Output voltage status
control
FLEX! devices 280 and 500W are equipped with Power Good relais
contact

The Power Good contact switches
from NC to NA when the output voltage
goes below -10% of rated (20Vdc at
rated 24Vdc).

It is particulary useful as monitor, in
redundancy applications
1st protection mode
“Hiccup”
HICCUP (automatic restart):
This is the default factory setting of all
FLEX! units
In case of short-circuit or overloading,
the output current is interrupted. The
device tries again to reestablish output
voltage and normal condition about
every 1,5 second till the problem is
cleared.
Jumper position
2nd protection mode
“Manual reset”

MANUAL RESET (manual restart
by operator): In case of shortcircuit or overloading, the output
current is interrupted. In order to
restart the output it is necessary to
interrupt the input circuit for about
1 minute.

This protection mode is particulary
suggested in applications where
safety procedures require that
reset be carried out by an
authorized physical person.
Jumper
position
3rd protection mode
“Fold Back”
Short Circuit
Over load

FOLD BACK In case of a shortcircuit or overload this protection
mode does not shut down the output
but reduce the voltage and regulate
current.

When a short circuit or an overload
occur the FLEX! unit output can
accept up to 1,5 times rated current
(In) at 60°C (in some units even
more). The output voltage is
gradually reduced till almost zero as
the current increase. In this mode
the unit never switches off.
Jumper
position
FLEX! Meets
EN 60204-1 Regulation



The regulation EN60204-1 addresses safety
issues in industrial applications where power
supply to a load is delivered by electronic
stabilized power supply devices.
Safety in case of overload is a specific focus of
the norm. Particularly in case the load is
subdivided in more circuits with individual
overload protection devices
The main requirement of the norms is that the
power supply must be able to withstand a
current at least 50% higher than its rated value
for 1hr, while at the same time keeping the
output voltage within -10% of rated value
FLEX! Meets
EN 60204-1 Regulation
Important, immediate and practical consequence

Conforming to EN60204-1
requirements implies a …
…change in circuit design
criteria

If the power supply does
not meet the requirements
…
…it is no longer allowed to use
a power supply whose rated
current is the same of rated
load demand
FLEX! Meets
EN 60204-1 Regulation


In choosing the protection devices for a
selective protection of the output loads
conforming with EN60204-1, a good safety
margin is needed between the thermal
overload threshold of each protection device
and the rated current of the power supply. This
because if they are too close, the power
supply will switch off before the protection
device has the time to sense the overload.
There are only two possible solutions:

increase the size of the power supply to
achieve the required margin (more
expensive)

or use devices designed specifically for
this conditions, as FLEX!
FLEX! Meets
EN 60204-1 Regulation


With FLEX! it is possible to have 50% more
current than the rated value at 60°C. In this way
FLEX! guarantee the selective protection of
In x 1.5
individual output lines
Example in previous slide: Flex28024A can
supply a continuous load of 10A (@ 60°). In
case of overload, it will deliver up to 15A and
keep the output voltage within -10% of rated (as
EN60204-1 requires). This allows to choose a
magneto-thermic switch with a tripping threshold
set within 50% above rated current of the power
supply. In case of overload on one of the output
lines, the magneto-thermic switch protecting
that line will have the time to intervene, thereby
assuring a continuing power supply to the other
line (PLC) of the circuit.