Altech FLEX Power Single Phase 24V DC Power Supplies Data Sheet

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FLEX Power Single Phase
24V DC Power Supplies

More flexibility in input voltage

The FLEX line of power supplies are suitable to a wide
range of input voltage. With a single type it is therefore
possible to meet the requirements of more
applications and consequently improve design activity
and stock management.

More Power: Power Boost

As an example, PSA-18024 is a 24Vdc power supply
that features a continuous duty current of 7.5A at 110°C
and 5A at 60°C and a Power Boost of 150%, equivalent
to 7.5A, for at least 3 min. This features allows the use
of a smaller size unit to power demanding loads such as
motors, solenoid valves, lamps and other loads with
transient overload behavior which would otherwise
require an oversize power supply.

More flexibility in input voltage

Power Good relay for monitoring
the output voltage level

Output voltage is continuously monitored. The units 24 VDC
output are equipped with Power Good relay. The NO contact
triggers any time the output voltage level goes below
20Vdc (24 Vdc output). This feature is particularly useful in
redundant applications.

Applications in compliance
with EN 60204-1 standard

The FLEX Power units comply with the requirement of EN60204-1 standard that an overload of
50% over the nominal current be withstand by the power supply for at least 1 hour to allow the
tripping of magneto-thermic switches on the output. These features allows the implementation of
“Control of commands and Emergency stops” by means of industrial PCs, PLC, remote I/O, etc.
required by the standard.

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FLEX Power Single Phase
24V DC Power Supplies

Hiccup Mode
Automatic Restart

This is the default factory setting
of all FLEX Power units. In case of
shortcircuit or overloading, the
output current is interrupted. The
device tries again to re-establish
output voltage and normal
condition about every 2 second
till the problem is cleared.

Manual Reset Mode
Restart by Operator

In case of short-circuit or overload,
the output current is interrupted. In
order to restart the output it is
necessary to switch-off the input
circuit for about 1 minute. This
protection mode is particularly
suggested in applications where
safety procedures require that
reset be carried out only by an
authorized person.

Continuous
Output mode

In case of short-circuit or
overload, the output current is
kept at high values with near zero
voltage. In case of short circuit
the current can reach up to 3
times the rated current at 60°C.
This protection mode is used to
meet the requirements of
demanding loads such as motors,
solenoid valves, lamps, PLC with
highly capacitive input circuits
and other loads with marked
transient overload behavior.

Jumper settings

Output circuits protected by
magneto-thermic circuit breakers

Standard output circuit breakers can be triggered quickly and reliably with FLEX technology, which allows
three times the nominal current at 60°C. Defective current paths are selectively disconnected, the defect is
limited and the important parts of the system remain in operation. This together with the 50% overload
capacity in compliance with EN60204-1 allows to safely manage any overload and short circuit condition.

Reduced dimensions
and snap-on DIN rail bracket

The higher performances obtained with the FLEX Power line, allow almost half dimensions as conventional
technology and higher performances. An example is the PSA-12024 (120V) with maximum current is 12A. In
permanent duty at 40°C it can deliver 5A at 24Vdc. All FLEX units feature the new DIN rail mounting bracket,
easy to use and safe against heavy loading and vibrations.

Easy Parallel connection

With FLEX technology it is easy to double capacity. The units PSA-360, PSB-360, PSA-600 and PSB-600 can
be easily connected in parallel without needing high precision instruments. Follow instructions supplied with
each unit.

HICCUP
MODE

MANUAL
RESET

CONTINUOUS
OUT MODE

FLEX Power Single Phase
24V DC Power Supplies

Specifications

Features:

• Multiple overload/ short circuit protection modes

• Efficiency above 91%

• Small size

• DIN rail mountable

• Cooling by free air convection

• UL508 (industrial control equipment) approved

• EN60950-1

• Built-in DC OK relay contact

• 3 year warranty

120W DIN Rail Power Supply

Cat. No. Phases Output Tol. Ripple & Efficiency NOTES

V DC A % Noise

PSA-12024 1 24V DC 5A ±3% ≤80 mVp-p ≥91%

180W DIN Rail Power Supply

Cat. No. Phases Output Tol. Ripple & Efficiency NOTES

V DC A % Noise

PSA-18024 1 24V DC 7.5A ±3% ≤80 mVp-p ≥91%

12V DC and 48V DC output on request.

360W DIN Rail Power Supply

Cat. No. Phases Output Tol. Ripple & Efficiency NOTES

V DC A % Noise

PSA-36024 1 24V DC 14A ±3% ≤80 mVp-p ≥91%

12V DC and 48V DC output on request.

600W DIN Rail Power Supply

Cat. No. Phases Output Tol. Ripple & Efficiency NOTES

V DC A % Noise

PSA-60024 1 24V DC 25A ±3% ≤80 mVp-p ≥92%

48V DC output on request.

**Other output voltages on request.

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SPECIFICATIONS

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PSA-12024 Series

PSA-18024 Series

Terminal Pin. No Assignment (TB1)
Pin No. Assignment PSA-12024 (1 phase)
1 N/AC
2 L/AC
3 FG

Terminal Pin. No Assignment (TB2)
Pin No. Assignment PSA-12024 (1 phase)
1/2 DC OUTPUT -V
3/4 DC OUTPUT +V
5/6 Relay Contact

Nominal Input Data: 115VAC/1.8A - 230VAC/0.9A (selectable by switch)
Connection: screw terminal blocks for wires 0.2-2.5mm² / AWG 24-14
Size (WxHxD): 55x116x103 mm (2.17x4.57x4.06 inches)
Packaging: 1/box; 0.5kg (1.1 lbs)

Terminal Pin. No Assignment (TB1)
Pin No. Assignment PSA-18024 (1 phase)
1 N/AC
2 L/AC
3 FG

Terminal Pin. No Assignment (TB2)
Pin No. Assignment PSA-18024 (1 phase)
1/2 DC OUTPUT -V
3/4 DC OUTPUT +V
5/6 Relay Contact

Nominal Input Data: 115VAC/2.8A - 230VAC/1.3A (selectable by switch)
Connection: screw terminal blocks for wires 0.2-2.5mm² / AWG 24-14
Size (WxHxD): 55x116x103 mm (2.17x4.57x4.06 inches)
Packaging: 1/box; 0.6kg (1.32 lbs)

PSA-36024 Series

Terminal Pin. No Assignment (TB1)
Pin No. Assignment PSA-36024 (1 phase)
1 N/AC
2 L/AC
3 FG

Nominal Input Data: 115VAC/3.3A - 230VAC/2.2A (selectable by switch)
Connection: screw terminal blocks for wires 0.2-2.5mm² / AWG 24-14
Size (WxHxD): 72x118x133 mm (2.83x4.49x5.24 inches)
Packaging: 1/box; 0.72kg (1.59 lbs)

Terminal Pin. No Assignment (TB2)
Pin No. Assignment PSA-36024 (1 phase)
1/2/3 DC OUTPUT -V
4/5/6 DC OUTPUT +V
7/8 Relay Contact

PSA-60024 Series

Terminal Pin. No Assignment (TB1)
Pin No. Assignment PSA-60024 (1 phase)
1 N/AC
2 L/AC
3 Jumper 115V AC
4 Jumper 115V AC
5 FG

Nominal Input Data: 115VAC/8.0A - 230VAC/4.2A (selectable by switch)
Connection: screw terminal blocks for wires up to

4mm² / 11AWG (solid), 6mm² / 10AWG (stranded)

Size (WxHxD): 85x120x142 mm (3.35x4.72x5.59inches)
Packaging: 1/box; 1.0kg (2.2 lbs)

Terminal Pin. No Assignment (TB2)
Pin No. Assignment PSA-60024 (1 phase)
1/2 DC OUTPUT -V
3/4 DC OUTPUT +V
5/6 Relay Contact