WAGO Pro 2 User manual

Product manual | Version 1.0.0
Power Supplies
Power Supply Pro 2
2787-2144

2787-2144Legal Information
© 2020 WAGO Kontakttechnik GmbH & Co. KG
All rights reserved.
WAGO Kontakttechnik GmbH & Co. KG
Hansastraße 27
D - 32423 Minden
Phone: [phone] – 0
Fax: [phone] – 844169
E-Mail: * [email protected]
Internet: ü www.wago.com
Technical Support
Phone: [phone] – 44555
Fax: [phone] – 844555
E-Mail: * [email protected]
Every conceivable measure has been taken to ensure the accuracy and completeness of
this documentation. However, as errors can never be fully excluded, we always appreci-
ate any information or suggestions for improving the documentation.
E-Mail: * [email protected]
We wish to point out that the software and hardware terms as well as the trademarks of
companies used and/or mentioned in the present manual are generally protected by
trademark or patent.
WAGO is a registered trademark of WAGO Verwaltungsgesellschaft mbH.
Product manual | Version: 1.0.0
Power Supply Pro 2

2787-2144 Table of Contents
Product manual | Version: 1.0.0 iii
Power Supply Pro 2
Table of Contents
1Provisions.........................................................................................................................6
1.1 Intended Use........................................................................................................... 6
1.2 Typographical Conventions..................................................................................... 7
1.3 Legal Information .................................................................................................... 8
2Security...........................................................................................................................10
2.1 General Safety Rules ............................................................................................ 10
2.2 Electrical Safety..................................................................................................... 10
2.3 Mechanical Safety................................................................................................. 11
2.4 Thermal Safety...................................................................................................... 11
2.5 Indirect Safety ....................................................................................................... 11
3Properties .......................................................................................................................12
3.1 Introduction............................................................................................................ 12
3.2 View....................................................................................................................... 12
3.3 Type label.............................................................................................................. 13
3.4 Label...................................................................................................................... 14
3.5 Connections .......................................................................................................... 14
3.5.1 Connectors ...................................................................................................14
3.5.2 Input .............................................................................................................15
3.5.3 Output...........................................................................................................15
3.5.4 Signal ...........................................................................................................16
3.6 Indicators............................................................................................................... 16
3.7 Control elements ................................................................................................... 17
3.7.1 Buttons .........................................................................................................17
3.8 Communication interface....................................................................................... 17
3.9 Technical data....................................................................................................... 18
3.9.1 Product .........................................................................................................18
3.9.2 Input .............................................................................................................19
3.9.3 Output...........................................................................................................19
3.9.4 Efficiency/Power Loss .................................................................................. 21
3.9.5 Signal ...........................................................................................................22
3.9.6 Communication ............................................................................................23
3.9.7 MTBF/Lifespan .............................................................................................23
3.9.8 Environmental Conditions ............................................................................23
3.9.9 Product Protection........................................................................................23
3.9.10 Security ........................................................................................................24
3.10 Guidelines, approvals and standards.................................................................... 25
3.10.1 Guidelines ....................................................................................................25
3.10.2 Approvals .....................................................................................................25
3.10.3 Standards .....................................................................................................25
3.10.4 Special Requirements .................................................................................. 27

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4Functions........................................................................................................................29
4.1 Functions............................................................................................................... 29
5Installation and Removal...............................................................................................30
6Connection .....................................................................................................................33
6.1 Connection ............................................................................................................ 33
6.2 Connect Conductor to CAGE CLAMP® ................................................................ 33
6.3 Push-In Termination.............................................................................................. 34
7Operation ........................................................................................................................35
7.1 Operation via Buttons............................................................................................ 35
8Diagnostics.....................................................................................................................36
8.1 Diagnostics via Indicators...................................................................................... 36
9Configuration..................................................................................................................37
9.1 Requirements........................................................................................................ 37
9.1.1 System Requirements ..................................................................................37
9.1.2 Install WAGO Interface Configuration Software ...........................................37
9.1.3 Configure Product ........................................................................................37
9.2 First Steps ............................................................................................................. 38
9.2.1 Starting the Software....................................................................................38
9.3 Overview ............................................................................................................... 41
9.3.1 Menu Bar......................................................................................................42
9.3.1.1 “Backstage” Tab ..................................................................................42
9.3.1.2 “Device” Tab ........................................................................................42
9.3.1.2.1 Dialog: Settings.......................................................................... 42
9.3.2 Main Menu....................................................................................................49
9.3.3 Display Section.............................................................................................49
9.3.3.1 Display Section: Measurements ..........................................................49
9.3.3.2 Display Section: Measurement Recording ..........................................51
9.3.3.3 Display Section: Information................................................................52
10 Notes on Operation........................................................................................................53
10.1 Insulation Testing .................................................................................................. 53
10.2 Inrush Current ....................................................................................................... 53
10.3 Derating................................................................................................................. 53
10.3.1 Derating (Temperature-Dependent) .............................................................53
10.3.2 Derating (Location-Dependent) ....................................................................54
10.4 Parallel Connection ............................................................................................... 54
10.5 Short-Circuit and Overload Behavior .................................................................... 55
10.5.1 “Constant Current” Mode..............................................................................55
10.5.2 “Constant Current with Latching Shutdown” Mode.......................................56
10.5.3 “Hiccup” Mode ..............................................................................................56
10.5.4 “Electronic Circuit Breaker” Mode ................................................................57
10.5.5 “Latching Shutdown on Thermal Overload” Mode........................................57
10.5.6 “Power Boost” mode.....................................................................................57
10.5.7 “Top Boost” Mode.........................................................................................58

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10.6 Maintenance.......................................................................................................... 59
11 Decommissioning ..........................................................................................................60
11.1 Disposal and Recycling......................................................................................... 60
12 Appendix.........................................................................................................................61
12.1 Application Notes .................................................................................................. 61
12.1.1 AC Operation................................................................................................61
12.2 Accessories........................................................................................................... 62
12.3 Protected Rights.................................................................................................... 63

2787-2144Provisions
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1Provisions
This documentation applies to the WAGO Power Supply Pro 2 (2787-2144).
Note
Observe the applicable documentation!
This product must only be installed and operated according to the instructions of the com-
plete Instructions for use. Knowledge of the complete Instructions for use is required for
proper use.
1. Carefully read the Product Manual.
2. Before commissioning, follow the instructions in section 8Safety [}10].
Table 1: Complete instructions for use
Document Type Contents
& Product Manual Contains all the product-specific information for a product.
& Instruction leaflet Is included with each product. Contains initial information on safe handling of
the product.
All the documentation is available at: üwww.wago.com.
1.1 Intended Use
The 2787 Series WAGO Power Supply Pro 2 provides DC voltage to electrical or elec-
tronic devices, such as industrial control systems or display, communication and measur-
ing devices.
The product is an open system and is designed for installation in a additional enclosure.
• This product fulfills the requirements of protection type IP20 and is designed for use in
dry indoor spaces.
• Operation of the products in Industrial area is permitted.
• The product meets the EMC requirements for Residential, businesses and commercial
areas; small businesses too. if the product used complies with the emission of interfer-
ence requirements (emission limits).
• Operation of the product in other application areas is only permitted when correspond-
ing approvals and labeling are present.
Improper Use
Improper use of the product is not permitted. Improper use occurs especially in the follow-
ing cases:
• Non-observance of the intended use.
• Use without additional protective measures in environments within which dust, corro-
sive fumes, gases or ionized radiation can occur.
• Use of the product in areas with special risk that require continuous fault-free operation
and in which failure of or operation of the product can result in an imminent risk to life,
limb or health or cause serious damage to property or the environment (such as the
operation of nuclear power plants, weapons systems, aircraft and motor vehicles).

2787-2144 Provisions
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Power Supply Pro 2
Warranty and Liability
The terms set forth in the General Business & Contractual Conditions apply to deliveries
and services of WAGO Kontakttechnik GmbH & Co. KG, and the WAGO Software Li-
cense Contract applies to software products and products with integrated software. Both
are available at üwww.wago.com. In particular, the warranty is void if:
• The product is improperly used.
Individual agreements always have priority.
Obligations of Installers/Operators
The Installer/operator bear responsibility for the safety of an installation or a system as-
sembled with the products. The Installer/operator is responsible for proper installation and
security of the system. All laws, standards, guidelines, local regulations and accepted
technology standards and practices applicable at the time of installation and the instruc-
tions in the products’ Instructions for use must be complied with.
1.2 Typographical Conventions
Number Notation
100 Decimals: Normal notation
0x64 Hexadecimals: C-notation
‘100’
‘0110.0100’
Binary: In single quotation marks
Nibbles separated by a period
Text Formatting
italic Names of paths or files
bold Menu items, entry or selection fields, emphasis
Code Sections of program code
> Selection of a menu point from a menu
“Value” Value entries
[F5] Identification of buttons or keys
Cross References / Links
Cross reference / link to a section in a document
Cross reference / link to a separate document
ü
Cross reference / link to a website
Cross reference / link to an email address
Action Instructions
üThis symbol identifies a precondition.
1. Action step
2. Action step
ðThis symbol identifies an intermediate result.
ðThis symbol identifies the result of an action.

2787-2144Provisions
8 Product manual | Version: 1.0.0
Power Supply Pro 2
Lists
• Lists, first level
– Lists, second level
Notes
DANGER
Type and source of hazard
Possible consequences of hazard that also include death or irreversible injury
• Action step to reduce risk
WARNING
Type and source of hazard
Possible consequences of hazard that also include severe injury
• Action step to reduce risk
CAUTION
Type and source of hazard
Possible consequences of hazard that include at least slight injury
• Action step to reduce risk
!
NOTICE
Type and source of malfunction (property damage only)
Possible malfunctions that may restrict the product’s scope of functions or ergonomics,
but do not lead to foreseeable risks to persons
• Action step to reduce risk
Note
Notes and information
Indicates information, clarifications, recommendations, referrals, etc.
1.3 Legal Information
Intellectual Property
Unless barred by applicable legal provisions, unauthorized copying and distribution of this
document, as well as the use and communication of its content are strictly prohibited un-
less expressly authorized by prior agreement. Third-party products are always mentioned

2787-2144 Provisions
Product manual | Version: 1.0.0 9
Power Supply Pro 2
without any reference to patent rights. WAGO Kontakttechnik GmbH & Co. KG, or for
third-party products, their manufacturer, retain all rights regarding patent, utility model or
design registration.
Third-party trademarks are referred to in the product documentation. The “®” and “TM”
symbols are omitted hereinafter. The trademarks are listed in the Appendix (8Protected
Rights [}63]).
Subject to Change
The instructions, guidelines, standards, etc., in this manual correspond to state of the art
at the time the documentation was created and are not subject to updating service. The
installer and operator bear sole responsibility to ensure they are complied with in their
currently applicable form. WAGO Kontakttechnik GmbH & Co. KG retains the right to
carry out technical changes and improvements of the products and the data, specifica-
tions and illustrations of this manual. All claims for change or improvement of products
that have already been delivered – excepting change or improvement performed under
guarantee agreement – are excluded.
Licenses
The products may contain open-source software. The requisite license information is
saved in the products. This information is also available under üwww.wago.com.

2787-2144Security
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2Security
This section contains safety rules that must be followed for hazard-free use of the prod-
uct.
This section is aimed at the following target groups:
• Planners and installers
• Operators
• Qualified assembly personnel
• Qualified installation personnel (electrical installation, technician network installation
etc.)
• Qualified operating personnel
• Qualified service and maintenance personnel
Obey the following safety rules:
2.1 General Safety Rules
• This documentation is part of the product. Therefore, retain the documentation during
the entire service life of the product. Pass on the documentation to any subsequent
user of the product. In addition, ensure that any supplement to this documentation is
included, if necessary.
• The product must only be installed and put into operation by qualified electrical special-
ists per EN 50110‑1/-2 and IEC 60364.
• Comply with the laws, standards, guidelines, local regulations and accepted technol-
ogy standards and practices applicable at the time of installation.
2.2 Electrical Safety
• High voltage can cause electric shock or burns! Disconnect all power sources from the
product before performing any installation, repair or maintenance.
• Make sure the product does not carry any voltage before starting work.
Power Supply
• Connecting impermissible current or frequency values may destroy the product.
• Provide suitable disconnect and overcurrent protection on the system side. The protec-
tion device must be located near the product where it can be operated. The OFF posi-
tion must be clearly marked on the protection device.
Ground / Protection / Overcurrent Protection
• When handling the product, please ensure that environmental factors (personnel, work
space and packaging) are properly equalized. Do not touch any conducting parts.
• Establish sufficient grounding. Make sure there is a flawless electrical connection be-
tween the DIN-rail and frame / additional enclosure.
• Only operate the product when the ground conductor is connected.
• Protect the product with an appropriate overcurrent protection device.
Conductors
• Only use conductor cross-sections sufficient for the current load.
• Observe permissible temperature range of connecting cables.

2787-2144 Security
Product manual | Version: 1.0.0 11
Power Supply Pro 2
• Only clamp one conductor to each connection terminal. If several conductors must be
clamped, wire them using an upstream wiring assembly (e.g., WAGO Through Termi-
nal Blocks).
• Use appropriate strain relief.
2.3 Mechanical Safety
• As the installer of the system, you are responsible for ensuring the necessary touch-
proof protection. Follow the installation guidelines for the specific application.
• The surrounding air temperature for operation indicated in the technical data applies to
the nominal mounting position. Different mounting positions may affect the permissible
surrounding air temperature for operation.
• Cooling of the product must not be impaired. Ensure air can flow freely and that the
minimum clearances from adjacent products/areas are maintained.
• Before startup, please check the product for any damage that may have occurred dur-
ing shipping. Do not put the product into operation in the event of mechanical damage.
• Do not open the product housing.
• Replace any defective or damaged devices.
• Install the product in an additional housing. This housing must:
– Restrict access to authorized personnel and may only be opened with tools.
– Ensure the required pollution degree in the vicinity of the system
– Offer adequate protection against direct or indirect contact
– Offer adequate protection against UV irradiation
– Prevent fire from spreading beyond the housing
– Guarantee mechanical stability
2.4 Thermal Safety
• The surface of the housing heats up during operation. Under special conditions (e.g., in
the event of a fault or increased surrounding air temperature), touching the product
may cause burns. Allow the product to cool down before touching it.
• The temperature inside the additional enclosure must not exceed the surrounding air
temperature permitted for the mounted product.
2.5 Indirect Safety
• Only use a dry or cloth or a clothed dampened with water to clean the product. Do not
use cleaning agents, e.g., abrasive cleaners, alcohols or acetone.
• Clean tools and materials are imperative for handling the product.
• Before installation and operation, please read the product documentation thoroughly
and carefully. In addition, note the information on the product housing and further infor-
mation, e.g. at üwww.wago.com/<item number>.
• The product contains no parts that can be serviced by the user. Always have all ser-
vice, maintenance and repair work performed by specialists authorized by WAGO.
• Observe the different technical specifications for mounting that does not correspond to
the nominal mounting position.

2787-2144Properties
12 Product manual | Version: 1.0.0
Power Supply Pro 2
3Properties
3.1 Introduction
The 2787 Series WAGO Power Supplies Pro 2 are compact switched-mode Power sup-
plies with a wide range of uses. The Power supplies can be fitted on a DIN-rail.
The Power supplies can be configured directly via buttons on the product or via the inte-
grated communication interface. For this purpose, the connection is established either via
the WAGO USB configuration cable or via an attached communication module. It is also
possible to record and evaluate various output parameters via the WAGO Interface Con-
figuration software, which is available separately.
The pluggable connection technology uses WAGO pluggable connectors. These allow
pre-wiring for quicker installation, as well as quicker and easier product replacement.
LEDs indicate various diagnostic messages (see section 8Indicators [}16]).
3.2 View
b
a
e
f
d
c
g
h
j
a
k
Figure1: View
Table 2: Legend for “View” Figure
Position Comment For Details, See Section
a Ventilation openings –
b Signal (X3) 8Signal [}16]

2787-2144 Properties
Product manual | Version: 1.0.0 13
Power Supply Pro 2
Table 2: Legend for “View” Figure
Position Comment For Details, See Section
c Output (X2) 8Output [}15]
d Optical Status Indicator 8Indicators [}16]
e Buttons 8Control elements [}17]
f Communication interface 8Communication interface [}17]
g Type label 8Type label [}13]
h Marker carrier 8Marker carrier [}62]
i – –
j Input (X1) 8Input [}15]
k Latch for mounting to /removal from DIN-rail –
3.3 Type label
The type label for the product is attached to the side of the housing. It contains the follow-
ing information:
See installation manual No. 9970-0966/2787-2144
Power Supply Unit Pro 2, 2787-2144
PS | | -PH|24VDC| AU Pro 2 1 5
IN:
OUT:
Ambient Temp.:
Derating:
www.wago.com/
2787-2144
Class I Equipment Indoor Use Only; ; IP20
Technical Data:
WAGO Kontakttechnik GmbH & Co. KG
Hansastr. 27, 32423 Minden, Germany
www.wago.com
WAGO is a registered trademark of WAGO Verwaltungsgesellschaft mbH.
100 ... 240 V ~ ; 1.3 ... 0.6 A ; 50 ... 60 Hz
-25°C ≤ T ≤ +70°C
amb
24 ... 28 V SELV ; 5 ... 4.3 A ; 120 W
-3 %/K (> +55°C and < 230 V ~)
-3 %/K (> +60°C and 230 V ~)≥
IND. CONT. EQ.
1
2
3
4
5
6
7
8
9
11
10
Figure2: Type label
Table 3: Legend for Figure “Type label”
Position Comment For Details, See Section
1 Company logo and address –
2 Warning notice symbols 8Safety [}10]
3 QR link with link to website –
4 Product name and order number –
5 Input and output data 8Technical data [}18]
6 Surrounding air temperature 8Environment requirements [}23]
7 Derating information 8Derating [}53]

2787-2144Properties
14 Product manual | Version: 1.0.0
Power Supply Pro 2
Table 3: Legend for Figure “Type label”
Position Comment For Details, See Section
8 Additional technical data 8Technical data [}18]
9 Information on the instruction leaflet –
10 Field for guidelines, approvals and standards 8Guidelines, approvals and stan-
dards [}25]
11 Label with product-specific information 8Label [}14]
3.4 Label
An additional label with product-specific information is attached to the type label. It con-
tains the following information:
SN: (37S)
UN315640102
27872144
0202020300005001
1619 02 02 02
11-05-6000 -137 _03
1
2
3
4
5
6
7
Figure3: Label
Table 4: Legend for Figure “Label”
Position Comment Details
1 2D data matrix code Contains the information from positions 2
… 5
2 Key number Fixed information (37S)
3 ID number per D-U-N-S® Fixed information (WAGO Minden)
4 WAGO item number or internal SAP number Product-specific
5 Consecutive number Product-specific
6 Production date and revision • Production date
• Revision index (xx yy zz)
7 Internal manufacturer product number Product-specific
Software Index Hardware Index Boot Loader Index
xx yy zz
3.5 Connections
3.5.1 Connectors
Observe the maximum permissible conductor cross sections for the signal and power ca-
bles (see section 8Technical Data [}18]).
Check the associated operating voltage before connecting the equipment (see section
8Technical Data [}18] or section 8Type label [}13]).
Additional information on the connection technology is provided in section .8Connec-
tion [}33]

2787-2144 Properties
Product manual | Version: 1.0.0 15
Power Supply Pro 2
3.5.2 Input
12 3
4
Figure4: Input X1 Connection
Table 6: Legend for Figure “Input X1 Connection”
Position Pin Explanation
1 1 Contact “L” for input voltage
2 2 Contact “N” for input voltage
3 3 Contact “PE” for input voltage
4 - Test slot
Series 721 Series (see section 8Accessories [}62])
Connection technology CAGE CLAMP®
3.5.3 Output
1 2 3 4 5
6
Figure5: Output X2 Connection
Table 8: Legend for Figure “Output X2 Connection”
Position Pin Description
1 1 Contact “-” for output voltage
2 2 Contact “-” for output voltage
3 3 Contact “-” for output voltage
4 4 Contact “+” for output voltage
5 5 Contact “+” for output voltage
6 - Test slot
Series 721 Series (see section 8Accessories [}62])
Connection Technology CAGE CLAMP®

2787-2144Properties
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3.5.4 Signal
1 2 3 4
5
Figure6: Signal X3 Connection
Table 10: Legend for Figure “Signal X3 Connection”
Position Pin Explanation
1 1 Contact “DI−” for input voltage
2 2 Contact “DI+” for input voltage
3 3 Contact “DO−” for output voltage
4 4 Contact “DO+” for output voltage
5 - Test slot
Series 721 Series (see section 8Accessories [}62])
Connection technology CAGE CLAMP®
3.6 Indicators
The product has an optical status indicator. This indicator consists of five LEDs.
These LEDs indicate operating states and 8Diagnostics [}36].
> 100 %
> 75 %
> 50 %
> 25 %
DC OK
Figure7: Optical Status Indicator
Table 12: Indication of Operating States – General
Indicator Product is in Standby Mode Latching Shutdown of Out-
put 1)
Boost Output (Signaled for
5s)
> 100% Off Flashing (0.5Hz) Flashing (2Hz)
> 75% Off Off Steady
> 50% Off Off Steady
> 25% Off Off Steady
DC OK Flashing (0.5Hz) Off Steady
1) In the event of overload or overtemperature, or if electronic circuit breaker trips
Table 13: Indication of Operating States – Output Power
Indicator DC OK / Output
Power <25%
Output Power
≥25% … <50%
Output Power
≥50% … <75%
Output Power
≥75% …
<100%
Output Power
≥100%
>100% Off Off Off Off Steady
>75% Off Off Off Steady Steady
>50% Off Off Steady Steady Steady

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Product manual | Version: 1.0.0 17
Power Supply Pro 2
Table 13: Indication of Operating States – Output Power
Indicator DC OK / Output
Power <25%
Output Power
≥25% … <50%
Output Power
≥50% … <75%
Output Power
≥75% …
<100%
Output Power
≥100%
>25% Off Steady Steady Steady Steady
DC OK Steady Steady Steady Steady Steady
3.7 Control elements
This section describes the control elements.
3.7.1 Buttons
Two buttons are located on the front of the product. These buttons are labeled + and −.
Among other functions, these two buttons are used to set or adjust the output voltage.
+
Adj.
Figure8: Control elements
Section 8Operation [}35] contains a detailed description of how you can use these
buttons to make settings.
3.8 Communication interface
The communication interface is covered with a cap. Remove this cap to use the commu-
nication interface.
!
NOTICE
Avoid destruction of the product by electrostatic discharge!
The contacts of the communication interface are very sensitive to electrostatic discharge
(ESD). If the contacts remain open continuously, the product can be destroyed!
• Remove the cap only when using the communication interface!
Note
Save cap!
Save the cap so you can re-close the communication interface after use. This prevents
contamination or foreign matter from getting into the open communication interface.
You can communicate with the product through the communication interface. The follow-
ing options are available for this:
• Via the WAGO USB Communication Cable (see section 8Accessories [}62])
• Via an attachable communication module (see section 8Accessories [}62])

2787-2144Properties
18 Product manual | Version: 1.0.0
Power Supply Pro 2
The WAGO USB Communication Cable is intended exclusively for parameterization and
is not designed for continuous communication. Use a corresponding communication mod-
ule for continuous communication!
If you use a communication module, the corresponding communication module is de-
scribed in the & Product Manual.
To connect to a PC with the WAGO USB Communication Cable, perform the following
steps:
1. Remove the cap.
2. Connect the USB connector of the WAGO USB Communication Cable to your PC.
3. Carefully insert the plug for the communication interface straight into the communi-
cation interface in such a way that the keying tab fits into the lower recess.
ðThe plug is seated correctly once it has been inserted into the interface up to the
stop. However, since the contours of the housing and plug differ, the plug does
not sit completely flush with the surface of the housing.
You can now connect to your product with the WAGO Interface Configuration software
and configure it (see section 8Configuration [}37]).
3.9 Technical data
3.9.1 Product
Table 14: Technical Data – Product
Property Value
Width 35 mm
Height 130 mm
Depth 130 mm (from the top edge of the DIN-rail)
Weight 700g
Degree of protection IP20
35 mm 130 mm
130 mm
Figure9: Dimensions

2787-2144 Properties
Product manual | Version: 1.0.0 19
Power Supply Pro 2
3.9.2 Input
Table 15: Technical Data – AC Input
Property Value
Nominal input voltage 100 … 240VAC
Input voltage range 90 ... 264 VAC
130 … 373VDC 1)
Input frequency 50 … 60 Hz
Grounding systems TN, TT and IT networks
Input current (typ.) 2) 110VAC 1.3A
230VAC 0.6 A
Power factor (typ.) 2) 110VAC 0.98
230VAC 0.88
1) For DC operation, external overcurrent protection must be provided!
2) At nominal load
Table 16: Technical Data – Inrush Current
Property Value
Inrush current (typ.) 1) 230VAC 7.6A
1) At room temperature of 25°C and after 1ms
Table 17: Technical Data – Mains Failure Buffering Time
Property Value
Mains failure buffering time, typ. 1) 110VAC 37 ms
230VAC 38 ms
Holding time, typ. 1) 110VAC 41 ms
230VAC 41 ms
1) At nominal load
Table 18: Technical Data – Input Connection
Property Value
Cross-section Solid 0.08 … 2.5 mm² / 28 … 12 AWG
Fine-stranded 0.08 … 2.5 mm² / 28 … 12 AWG
Insulated ferrule with plastic collar 0.25 … 1.5 mm² / 20 … 16 AWG
Ferrule without plastic collar 0.25 … 2.5 mm² / 20 … 14 AWG
Strip length 8 … 9mm / 0.31 … 0.35inch
Specifications of the conductors used ≥ +75°C / +167°F (ambient air temperature: ≤
+60°C / 140°F)
≥ +90°C / 194°F (ambient air temperature: >
+60°C / 140°F)
Required tools (conductor termination) Operating tool, with a partially insulated shaft,
type 2 (see section 8Accessories [}62])
3.9.3 Output
Table 19: Technical Data – Output
Property Value
Nominal output voltage 24VDC SELV 1)
Output voltage range 24 … 28 VDC SELV
Nominal output current 5 A (see section 8Derating [}53])
Output current range 5 … 4.3 A
Output power 2) 120 W

2787-2144Properties
20 Product manual | Version: 1.0.0
Power Supply Pro 2
Table 19: Technical Data – Output
Property Value
Power Boost 7.5 A (5 s)
Top Boost 30 A (15 ms)
Derating of output power See section 8Derating [}53]
Line regulation 2) < 0.02 %
Load regulation 3) < 2.0 %
Residual ripple/noise 4) < 70 mV
Overload behavior 5) 6) “Constant Current” mode 1)
“Constant current with latching shutdown
“Hiccup” mode
“Electronic Circuit Breaker” mode
“Latching Shutdown on Thermal Overload” mode
“Power Boost” mode
“Top Boost” mode
Switch-on delay (typ.) 6) 7) 230VAC < 2.2 s
1) Factory setting
2) Nominal load, in range 90 ... 264 VAC
3) 10% / 90% load step
4) 20MHz bandwidth
5) See section 8Short-Circuit and Overload Behavior [}55]
6) Can be set via the WAGO Interface Configuration software
7) See figure “Turn-on Time”
Overshoot
Turn on Time
Input
Voltage
Output
Voltage
Figure10: Turn-on Time
!
NOTICE
Select conductor cross-sections according to current load!
In the event of a fault, the output current of a power supply can be up to 1.5×IOUT. Only
use conductor cross-sections sufficient for the current load!
Table 20: Technical Data – Output Connection
Property Value
Cross-section Solid 0.08 … 2.5 mm² / 28 … 12 AWG
Fine-stranded 0.08 … 2.5 mm² / 28 … 12 AWG
Insulated ferrule with plastic collar 0.25 … 1.5 mm² / 20 … 16 AWG
Ferrule without plastic collar 0.25 … 2.5 mm² / 20 … 14 AWG
Strip length 13 to 15 mm / 0.51 to 0.59 in