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Obligations of Installers/Operators

The installers and operators bear responsibility for the safety of an installation or a sys

tem assembled with the products. The installer/operator is responsible for proper installa

tion and safety of the system. All laws, standards, guidelines, local regulations and ac

cepted technology standards and practices applicable at the time of installation, and the

instructions in the the products’ Instructions for Use, must be complied with. In addition,

the Installation regulations specified by Approvals must be observed. In the event of non

compliance, the products may not be operated within the scope of the approval.

Introduction

The 2787 Series WAGO Power Supplies Pro 2 are compact switched-mode

Power Supplies 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 Communication Cable or via an attached communication module. It is

also possible to record and evaluate various output parameters via the WAGO Interface

Configuration 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 Indicators).

Intended Use

The 2787 Series The WAGO Pro 2 Power Supply provides DC voltage to electrical or

electronic devices, such as industrial control systems or display, communication and

measuring devices.

The product is an open system and is designed for installation in a additional enclosure.

• The product is designed for use in dry indoor rooms.

• Operation of the products in Industrial area is permitted.

• The product meets the EMC requirements for residential, office and commercial areas

as well as small businesses, if the product used complies with the required emissions

of interference (emission limits).

• Operation of the product in other application areas is only permitted when correspond

ing approvals and labeling are present.WAGO 2787-2134 Power Supply Pro 2; 1-phase, 12 VDC, 10 A, 120 W

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 protective measures in an environment in which moisture, salt water, salt

spray mist, dust, corrosive fumes, gases, direct sunlight or ionizing 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)

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 protective measures in an environment in which moisture, salt water, salt

spray mist, dust, corrosive fumes, gases, direct sunlight or ionizing 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)

Warranty and Liability

The terms set forth in the General Business and Contract Conditions for Delivery and

Service of WAGO GmbH & Co. KG and the terms for software products and products with

integrated software stated in the WAGO Software License Contract – both available at

ü www.wago.com – shall apply. In particular, the warranty is void if:

• The product is improperly used.

• The deficiency (hardware and software configurations) is due to special instructions.

• Modifications to the hardware or software have been made by the user or third parties

that are not described in this documentation and that has contributed to the fault.

Individual agreements always have priority.

Features

• Power supply with TopBoost, PowerBoost and configurable overload behavior

• Configurable digital signal input and output, optical status indication, function keys

• Communication interface for configuration and monitoring

• Suitable for both parallel and series operation

• Snap on communication modules (sold separately)

• Free WAGO configuration software (download only)

• 2-year warranty

Smaller, but better

The WAGO Power Supply Pro 2 is smaller than its predecessor, but offers greater efficiency.

What that means to you is three times the cost savings and further crucial advantages:

First of all: The higher efficiency of up to 96 % reduces energy loss, and thus energy costs.

Second: The WAGO Power Supply Pro 2 generates less heat in the control cabinet, allowing 

corresponding savings on cooling solutions.

Third: Less warming means a longer service life of the components.

From planning, to installation, to long-term operation, the WAGO Power Supply Pro 2 saves

you even more time and money, since it can be created, planned, modified and ultimately

operated as a digital twin. All the necessary data is available in the most important 2D/3D

formats, and the communication provides transparency.

Marking compliant with EN 81346-2 is important for quick and safe installation. 

The WAGO Power Supply Pro 2 accommodates this through unambiguous imprinted connection

designations and the option of device identification through marking strips.

Overview

WAGO Pro2 compact switched-mode power supplies provide a wide range of uses.

These power supplies can be mounted on a 35mm DIN rail and can be configured

directly via buttons on the device’s face, using the WAGO USB configuration cable to

connect to the integrated communication interface, or using one of the WAGO Pro2

communication modules. In addition, the WAGO Interface Configuration software

(free download) can be used to record and evaluate various output parameters.

The pluggable connection technology uses WAGO CAGE CLAMP® connectors, which

allow pre-wiring for quicker installations as well as quicker and easier product replacement.

For configuration, data collection, and read-out of status information, the Pro2 Power

Supply can be connected to a dedicated WAGO Pro2 communication module at any time,

allowing selection of the desired protocol for coupling to the automation and control system.

The LED bar chart on the front reliably indicates the current output power, as well as

overloads/load reserves. Furthermore, the LEDs indicate the selected operating mode and,

when needed, warnings and errors.