Data sheet
Power supply CP-E 24/1.25
Primary switch mode power supply
2CDC 271 011 F0006
The CP-E range offers enhanced functionality
while the number of different types has been
considerably reduced. Now all power supply units
can be operated at an ambient temperature of up
to +70 °C.
Characteristics
–– Rated output voltage 24 V DC
–– Output voltage adjustable via front‑face rotary
potentiometer “OUTPUT Adjust”
–– Rated output current 1.25 A
–– Rated output power 30 W
–– Wide range input 100‑240 V AC (85‑264 V AC, 90‑375 V DC)
–– Typical efficiency of 86 %
–– Low power dissipation and low heating
–– Free convection cooling (no forced cooling with
ventilators)
–– Ambient temperature range during operation ‑40...+70 °C
–– Open‑circuit, overload and short‑circuit stable
–– Integrated input fuse
–– Redundancy unit CP‑RUD offering true redundancy,
available as accessory
–– Signalling output “DC OK” (Transistor) for output voltage OK
–– LEDs for status indication
Approvals
A UL 508, CAN/CSA C22.2 No.107.1 1)
H UL 1310, CAN/CSA C22.2 No.223
(Class 2 Power Supply)
H ANSI/ISA‑12.12, CAN/CSA C22.2 No. 213
(Class I, Div. 2, hazardous locations)
H UL 60950, CAN/CSA C22.2 No.60950 1)
R
E
1)
EAC
CCC 1)
Approval refers to rated input voltage Uin
Marks
a CE
b
RCM
Order data
Type
Input voltage range
Rated output voltage / current
Order code
CP-E 24/1.25
85-264 V AC / 90-375 V DC
24 V DC / 1.25 A
1SVR 427 031 R0000
Order data – accessories
Type
Description
Order code
CP‑RUD
Redundancy unit
1SVR 423 418 R9000
The CP‑RUD provides decoupling of two CP‑E power supply units ≤ 35 V and < 5 A.
Functions
1
2
1 OUTPUT L+,L+, L-, L-:
terminals – output
2 DC OK:
terminal – signalling output
3 INPUT L, N, PE:
5
4
6
terminals – input
4 OUTPUT OK:
green LED – output voltage OK
5 OUTPUT Adjust:
3
potentiometer – adjustment of the output voltage
6 Circuit diagram
Application
The primary switch mode power supply offers two voltage input ranges. This enables the supply with AC or DC.
Furthermore it is equipped with two generous capacitors, which ensure mains buffering of at least 30 ms (at 230 V AC).
That is why the devices can be used worldwide also in high fluctuating networks and battery‑powered plants.
Operating mode
By means of the potentiometer “OUTPUT Adjust” the output voltage can be adjusted within a range of 24 to 28 V DC.
Thus, the power supply can be optimally adapted to the application, e.g. compensating the voltage drop caused by a long
line length.
The green LED “OUTPUT OK” is lightening during operation.
2 - Power supply CP-E 24/1.25 | Data sheet
Installation
Mounting
2CDC272057F0b06
2CDC 272 057 F0b06
The switch mode power supply can be snapped on a DIN rail according to IEC/EN 60715 as shown in the accompanying
picture. For that the device is set with its mounting rail slide on the upper edge of the mounting rail and locked by lifting it
downwards.
Demounting
2CDC 272 058 F0b06
2CDC272058F0b06
Remove the switch mode power supply as shown in the accompanying picture. For that the latching lever is pulled
downwards by means of the screwdriver. Alternatively you can press the unlock button to release the device. Then in both
cases the device can be unhinged from the mounting rail edge and removed.
Mounting position
2CDC 272 060 F0b06
2CDC272060F0b06
The devices have to be mounted horizontally with the input terminals on the b
ottom. In order to ensure a sufficient
convection, the minimum distance to other modules should not be less than 25 mm in vertical and horizontal direction.
Data sheet | Power supply CP-E 24/1.25 - 3
Electrical connection
Connect the input terminals L and N. The protective earth conductor PE must be connected. The installation must be
executed acc. to EN 60950, provide a suitable disconnecting device (e. g. line protection switch) in the supply line. The
input side is protected by an internal input fuse.
Rate the lines for the maximum output current (considering the short‑circuit current) or provide a s eparate fuse protection.
We recommend to choose the cable section as large as possible in order to minimize voltage drops. Observe the polarity.
The device is overload, short‑circuit and open‑circuit proof. The secondary side of the power supply unit is electrically
isolated from the input and internally not earthed (SELV) and can therefore be earthed by the user according to the needs
with L+ or L‑ (PELV).
Connection diagram
L+
L-
PWM
N
PE
PE
N
L
2CDC 272 056 F0b06
L
DC
OK
2CDC272056F0b06
L- L- L+ L+
L+, L‑
Output voltage
L, N
Input voltage
DC OK
Signalling output for
output voltage OK
PE
Protective earth
Wiring instructions
DC OK
DC OK
L-
4 - Power supply CP-E 24/1.25 | Data sheet
L-
2.2 k
0.5 W
5.1 V
0.3 W
2CDC 272 017 F0207
5 V Signal
2CDC272017F0207
Relay
RL > 700
Safety instructions and warnings
The device must be installed by qualified persons only and in accordance with the specific national r egulations (e.g., VDE,
etc.). The devices are maintenance-free chassis-mounted units.
Disconnect system from supply network!
Before any installation, maintenance or modification work: Disconnect the system from the supply n
etwork
and protect against switching on.
Before start of operation:
Attention! Improper installation/operation may impair safety and cause operational difficulties or d
estruction
of the unit. Before operation the following must be ensured:
––
Connect to main according to the specific national regulations.
––
Power supply cables and unit must be sufficiently fused. A disconnecting device has to be provided for
the power supply to disengage unit and supply cables from supply mains if required.
––
The protective earth conductor must be connected to the terminal PE (Protection class I)
––
The secondary side of the power supply unit is not earthed and can be earthed by the user according to
the needs with L+ or L-.
––
Rate the output lines for the output current of the power supply and connect them with the correct
polarity.
––
In order to ensure sufficient air-cooling the distance to other devices has to be considered.
In operation:
––
Do not modify the installation (primary and secondary side)! High current! Risk of electric arcs and
electric shocks (danger to life)!
––
Risk of burns: Depending on the operation conditions the enclosure can become very hot.
––
The internal fuse is not user-replaceable. If the internal fuse blows, most probably the device is defective.
In this case, an examination of the switch mode power supply by the manufacturer is necessary.
Attention! High voltage! Danger to life!
The power supplies contain components with high stored energy and circuits with high voltage! Do not
introduce any objects into the unit, and do not open the unit. With some units of this range the o
utput is
capable of providing hazardous energy. Ensure that the service personnel is protected against inadvertent
contact with parts carrying energy.
Data sheet | Power supply CP-E 24/1.25 - 5
Technical data
Data at Ta = 25 °C, Uin = 230 V AC and rated values, unless otherwise indicated
Input circuits
Supply circuits
Rated input voltage Uin
L,N
100-240 V AC
Input voltage range
AC
85-264 V
DC
90-375 V
AC
47-63 Hz
Frequency range
Typical input current
at 115 V AC
560 mA
at 230 V AC
330 mA
Typical power consumption
36.7 W
Inrush current limiting
Discharge current
at 115 V AC
20 A (max. 3 ms)
at 230 V AC
40 A (max. 3 ms)
input / output
input / PE
Power failure buffering time
0.25 mA
3.5 mA
at 115 V AC
min. 20 ms
at 230 V AC
min. 30 ms
Internal input fuse
2 A slow-acting / 250 V AC
Power factor correction (PFC)
no
User interface
Indication of operational states
Output voltage
OUTPUT OK: green LED
V: output voltage OK
Output circuit
Rated output voltage
L+, L+, L-, L-
24 V DC
Tolerance of the output voltage
0 ... +1 %
Adjustment range of the output voltage
24-28 V DC
Rated output power
30 W
Rated output current Ir
Derating of the output current
Ta ≤ 60 °C
60 °C < Ta ≤ 70 °C
2.5 %/°C
DC OK
Transistor
Signalling output for output voltage OK
Maximum deviation with
1.25 A
load change statical
±0.5 %
change of output voltage within the
±0.5 %
input voltage range
Control time
< 2 ms
Starting time after applying
the supply voltage
at Ir
max. 1 s
with 3500 µF
max. 2 s
Rise time
at Ir
max. 150 ms
with 3500 µF
max. 500 ms
Fall time
Residual ripple and switching peaks
max. 150 ms
BW = 20 MHz
50 mV
Parallel connection
yes, to enable redundancy
Series connection
yes, to increase voltage
Resistance to reverse feed
1 s – max. 35 V DC
Output circuit – no-load, overload and short-circuit behaviour
Characteristic curve of output
U/I characteristic curve
Short-circuit protection
continuous short-circuit proof
Short-circuit behaviour
continuation with output power limiting
Overload protection
output power limiting
No-load protection
continuous no-load stability
Starting of capacitive loads
3500 µF
6 - Power supply CP-E 24/1.25 | Data sheet
General data
Power dissipation
typ. 5.5 W
Efficiency
typ. 86 %
Duty time
100 %
Dimensions (W x H x D)
40.5 x 90 x 114 mm
(1.59 x 3.54 x 4.49 in)
Weight
0.27 kg (0.60 lb)
Material of housing
Plastic
Mounting
DIN rail (IEC/EN 60715), snap-on mounting without any tool
Mounting position
horizontal
Minimum distance to other units
horizontal / vertical
25 mm / 25 mm (0.98 in / 0.98 in)
Degree of protection
housing / terminals
IP20 / IP20
Protection class
I
Electrical connection – input circuit / output circuit
Connecting capacity
fine-strand with wire end ferrule
fine-strand without wire end ferrule
0.2-2.5 mm2 (24-14 AWG)
rigid
Stripping length
6 mm (0.24 in)
Tightening torque
0.6 Nm (5 lb.in)
Environmental data
Ambient temperature range
operation
-40...+70 °C (-40...+158 °F)
rated load
-40...+60 °C (-40...+140 °F)
storage
-40...+85 °C (-40...+185 °F)
Damp heat
95 % RH, without condensation
Vibration (sinusoidal) (IEC/EN 60068-2-6)
10-500 Hz, 2 G, along X, Y, Z each axis, 60 min. for each axis
Shock (half-sine) (IEC/EN 60068-2-27)
15 G, 11 ms, 3 axis, 6 faces, 3 times for each face
Isolation data
Rated insulation voltage Ui
input / output
input / PE
output / PE
3 kV AC
1.5 kV AC
0.5 kV AC; 0.71 kV DC
Pollution degree
2
Overvoltage category
II
Standards / Directives
Standards
IEC/EN 60950‑1
Low Voltage Directive
2014/35/EU
Protective low voltage
SELV (IEC/EN 60950‑1)
EMC Directive
2014/30/EU
RoHS Directive
2011/65/EU
Data sheet | Power supply CP-E 24/1.25 - 7
Electromagnetic compatibility
Interference immunity to
IEC/EN 61000-6-2
electrostatic discharge
IEC/EN 61000-4-2
Level 4 (air discharge 15 kV / contact discharge 8 kV)
radiated, radio-frequency,
IEC/EN 61000-4-3
Level 3 (10 V/m)
electrical fast transient / burst
IEC/EN 61000-4-4
Level 4 (4 kV / 5 kHz)
surge
IEC/EN 61000-4-5
L-L Level 3 (2 kV) / L-PE Level 4 (4 kV)
conducted disturbances, induced by
IEC/EN 61000-4-6
Level 3 (10 V)
power frequency magnetic fields
IEC/EN 61000-4-8
Level 4 (30 A/m)
voltage dips, short interruptions
IEC/EN 61000-4-11
electromagnetic field
radio-frequency fields
and voltage variations
dip: >95 % 10 ms / >30 % 500 ms
interruptions: >95 % 5000 ms
Interference emission
IEC/EN 61000-6-3
high-frequency radiated
IEC/CISPR 22, EN 55022
Class B
high-frequency conducted
IEC/CISPR 22, EN 55022
Class B
IEC/EN 61000-3-2
Class A
limits for harmonic current emissions
8 - Power supply CP-E 24/1.25 | Data sheet
Technical diagrams
Output behaviour
1.25 1.35 1.45 1.55 1.65 1.75 1.85 1.95 2.05 2.15
Iout [A]
2CDC 272 006 F0b07
2CDC272006F0b07
Uout [V]
Characteristic curve of output at Ta = 25 °C
The switch mode power supply CP‑E 24/1.25 is able to supply at 24 V DC output voltage and
––
at an ambient temperature of:
≤ 60 °C a continuous output current of approx. 1.25 A
––
at ambient temperatures of:
60 °C < Ta ≤ 70 °C the output power has to be reduced by 2.5 % per °C temperature increase.
If the switch mode power supply is loaded with an output current > 1.25 A, the operating point is passing through the
U/I characteristic curve shown.
Temperature behaviour
Pout [%]
2CDC272017F0211
100
90
80
70
60
50
40
30
20
10
-40
60
70
Ta [°C]
Characteristic curve of temperature at rated load
Dimensions
in mm [inches]
90
1.59”
2CDC272023F0011
40.5
4.49“
3.54”
114
CP-E 24/1.25
Data sheet | Power supply CP-E 24/1.25 - 9
Dimensions accessories
in mm [inches]
22,5
4.31“
4.02“
78 3.07“
102
100
2CDC252188F0b05
.886“
2CDC 252 188 F0b05
109,5
3.94“
CP-RUD
Further documentation
Document title
Document type
Document number
Electronic Products and Relays
Technical catalogue
2CDC 110 004 C02xx
Power Supply Units
Application manual
2CDC 114 048 M020x
Redundancy unit CP‑RUD
Data sheet
2CDC 114 032 D0201
You can find the documentation on the internet at www.abb.com/lowvoltage
-> Automation, control and protection -> Power supplies.
CAD system files
You can find the CAD files for CAD systems at http://abb-control-products.partcommunity.com
-> Low Voltage Products & Systems -> Control Products -> Power Supplies.
10 - Power supply CP-E 24/1.25 | Data sheet
Contact us
Document number 2CDC 114 044 D0201 (08/2016)
ABB STOTZ-KONTAKT GmbH
P. O. Box 10 16 80
69006 Heidelberg, Germany
Phone: +49 (0) 6221 7 01-0
Fax: +49 (0) 6221 7 01-13 25
E-mail: info.desto@de.abb.com
You can find the address of your
local sales organisation on the
ABB home page
http://www.abb.com/contacts
-> Low Voltage Products and Systems
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