WAGO 879-3000 4PU User manual

Operating Instructions
Version: 082022V1.6
© 2022 distributed by WAGO –All rights reserved.
WAGO Energy Meters (MID)
with Push-in CAGE CLAMP® and Lever
879-3020 4PS
879-3000 4PU
879-3040 2PU CT

Table of Contents
1 Safety information ................................................................................................................................ 3
2 Introduction .......................................................................................................................................... 5
3 Certificates ............................................................................................................................................ 6
3.1 MID Declaration of Conformity: 4PU and 4PS .................................................................................................6
3.2 CE Declaration of Conformity: 4PU und 4PS ...................................................................................................7
3.3 MID Declaration of Conformity: 2PU CT .........................................................................................................8
3.4 CE-Declaration of Conformity: 2PU CT ...........................................................................................................9
4 Specifikations................................................................................................................................................10
4.1 Performance Criteria ...................................................................................................................................10
4.2 Measurement Deviations.............................................................................................................................11
4.3 Software Version Checksum ........................................................................................................................11
4.4 Bluetooth® Specifications ...........................................................................................................................11
4.5 M-Bus Communication Specifications ...........................................................................................................11
4.6 Modbus®/RS485 Communication Specifications ...........................................................................................11
4.7 Enclosure Dimensions .................................................................................................................................12
4.8 Connection Technology...............................................................................................................................12
4.9 Connection Diagram ...................................................................................................................................13
4.9.1 Connection Diagram 879-3000 (4PU) ........................................................................................................13
4.9.2 Connection Diagram 879-3020 (4PS) ........................................................................................................14
4.9.3 Connection Diagram 879-3040 (2PU CT) ...................................................................................................15
5 Installation.......................................................................................................................................... 16
6 Operation ............................................................................................................................................ 17
6.1 Display Part 1 (MID-relevant) ......................................................................................................................17
6.2 Display Part 2 (MID-relevant)......................................................................................................................17
6.3 Display Part 3 (non-MID-relevant) ...............................................................................................................17
6.4 Process Diagram 4PU/4PS & 2PU CT............................................................................................................18
6.5 Settings .....................................................................................................................................................19
6.6 Bluetooth®................................................................................................................................................19
6.7 Settings via Buttons....................................................................................................................................20
6.7.1 Password ................................................................................................................................................20
6.7.2 Tariff ......................................................................................................................................................20
6.7.3 S0 Pulse Output.......................................................................................................................................21
6.7.4 Pulse Type Setting ...................................................................................................................................21
6.7.5 S0 Pulse Length.......................................................................................................................................21
6.7.6 Modbus® ID ...........................................................................................................................................22
6.7.7 Modbus®-Baudrate .................................................................................................................................22
6.7.8 Modbus® Parity ......................................................................................................................................22
6.7.9 M-Bus-ID ................................................................................................................................................22
6.7.10 M-Bus Baud Rate ...................................................................................................................................23
6.7.11 Backlight ...............................................................................................................................................23
6.7.12 Power-down Counter .............................................................................................................................23
6.7.13 Trip Counter ..........................................................................................................................................23
6.7.14 OBIS Codes ...........................................................................................................................................24
6.8 OBIS-Codes - Tables...................................................................................................................................24
6.9 Set Transformer Ratio (2PU CT only) ...........................................................................................................26
7 Troubleshooting .................................................................................................................................. 28
7.1 Error / Diagnostic Indication........................................................................................................................28
7.2 Technical Support.......................................................................................................................................28
Appendix 1 –Multi-Tariff Function ........................................................................................................ 29
A1.1 Switching Tariffs between T1 and T2 .........................................................................................................29
A1.2 Switching Tariffs to T3 and T4 ..................................................................................................................29
Appendix 2 –M-Bus ............................................................................................................................... 30
A2.1 Communication via the M-Bus Interface.....................................................................................................30
A2.2 M-Bus Register Map..................................................................................................................................31
A2.3 M-Bus Write Register ................................................................................................................................32
Appendix 3 –Modbus®.......................................................................................................................... 33
A3.1 Communication via the Modbus® Interface ...............................................................................................33
A3.2 Modbus® Register Map ............................................................................................................................34
A3.3 Modbus® Write Register...........................................................................................................................38

WAGO Operating Instructions 4PU/4PS/2PU CT 3
1 Safety information
Information on your own safety
This manual does not contain all of the safety measures for operating this meter, as particular operating
conditions, local codes or ordinances may require additional measures. However, it contains information
that must be observed for your personal safety and to avoid damage to property. This information
highlighted by a warning triangle with an exclamation mark or a lightning bolt, depending on the degree of
actual or potential hazard:
Warning
This means that failure to heed the notice could result in death, serious injury or significant
property damage.
Caution
This means there is a risk of electric shock and failure to heed the notice will result in death,
serious injury or significant property damage.
Qualified Personnel
The installation and operation of the device described in this manual must only be carried out by qualified
personnel. Only qualified electricians according to EN 50110-1/-2 and IEC 60364 are qualified personnel in
the sense of this manual.
Intended Use
This device may only be used for the applications specified in the catalog and in the user manual and only
in connection with devices and components recommended and approved by WAGO. The device is an open
system. Install the device in lockable enclosures, cabinets or electrical operation rooms only. Access must
be limited to authorized, qualified staff having the appropriate key or tool.
Proper Handling
Requirements for the trouble-free, safe operation of the product are proper transport, storage, installation
and connection as well as careful operation and maintenance. During operation, certain parts of the meter
can carry dangerous voltages.
•During assembly, startup, operation, maintenance and troubleshooting, adhere to the specific accident
prevention provisions applicable to your machine/system, such as DGUV Regulation 3 “Electrical
installations and equipment".
•To minimize any hazardous situations resulting in personal injury or to avoid failures in your system,
the data and power supply lines shall be installed according to standards, with careful attention given
to ensuring the correct terminal assignment.
•Always adhere to the EMC directives applicable to your application.
•The meter is intended for installation in an “M1” mechanical environment, with minor shocks and
vibrations and an “E2” electromagnetic environment, according to Directive 2014/32/EC. The meter is
intended for indoor use. The meter must be installed in a suitable IP-rated enclosure, in accordance
with local regulations. The devices have been developed for use in an environment that meets the
criterion of the IP20 protection type. There is protection against figure injury and protection against
the ingress of solid foreign objects greater than or equal to 12.5 mm, but no protection against water.
Unless otherwise specified, operation of the devices in wet and dusty environments is prohibited.

4 WAGO Operating Instructions 4PU/4PS/2PU CT
•Ensure that the conductors used are suitable for the maximum current of this meter and the prevailing
environmental conditions.
•Make sure all leads are properly connected before applying power to the meter.
•Make sure that protection against accidental contact is in place after installing the energy meter. If this
cannot be guaranteed on site for operational reasons and bare conductors can be seen, attachment of
the terminal cover is required.
•For each individual application, the devices are supplied from the factory with a dedicated hardware
and software configuration. These modules contain no parts that can be serviced or repaired by the
user.
The following actions will result in the exclusion of liability on the part of WAGO GmbH & Co. KG:
• Repairs
• Changes to the hardware or software that are not described in the operating instructions
• Improper use of the component.
Further details are given in the contractual agreements.
Please send your suggestions for modifications to modified or new hardware or software
configurations directly to WAGO GmbH & Co. KG.
•Never break any seals (if provided on this meter) to open the front cover as this will affect the
functionality or accuracy of the meter and will void any warranty.
•Do not drop the meter or subject it to physical shock as it contains high-precision components. The
components could break and negatively affect the measurement.
•Only use conductor cross-sections approved for the terminal blocks with appropriately stripped ends.
Exclusion of Liability
We have reviewed the contents of this manual and have made every effort to ensure that the descriptions
are as accurate as possible. Nevertheless, deviations from the description cannot be completely ruled out,
so that no liability can be accepted for any errors or omissions in the information. The information in this
manual is reviewed regularly and any necessary corrections incorporated into subsequent editions. Should
you have any suggestions, please do not hesitate to contact us.

WAGO Operating Instructions 4PU/4PS/2PU CT 5
2 Introduction
Although we produce the energy meters according to international standards and our quality control is
very strict, it is still possible that this meter has a defect or failure, for which we apologize. Under normal
conditions, your product should provide you with years of trouble-free service. If there is a problem with
the energy meter, you should contact your dealer immediately. The enclosures of the energy meters are
sealed and must not be opened. Opening the enclosure or damaging the seal will void the warranty.

6 WAGO Operating Instructions 4PU/4PS/2PU CT
3 Certificates
3.1 MID Declaration of Conformity: 4PU and 4PS

WAGO Operating Instructions 4PU/4PS/2PU CT 7
3.2 CE Declaration of Conformity: 4PU und 4PS

8 WAGO Operating Instructions 4PU/4PS/2PU CT
3.3 MID Declaration of Conformity: 2PU CT

WAGO Operating Instructions 4PU/4PS/2PU CT 9
3.4 CE-Declaration of Conformity: 2PU CT

10 WAGO Operating Instructions 4PU/4PS/2PU CT
4 Specifikations
Material Polycarbonate (PC 940A)
Nominal voltage (Un) AC 230 / 400 V (3~)
Operating voltage 3 x 230 / 400 V ±20 %
Insulation capacity:
-AC voltage resistance 4 kV für 1 Minute
-Pulse volate resistance 6 kV …1,2μS waveform
Base current (Ib)
Maximum nominal current (Imax)
Operating current range 0,4%Ib … Imax
Overcurrent resistance 30 Imax für 0,01s
Operating frequency 45 … 60Hz
Internal consumption ≤2 W/Phase - ≤10 VA/Phase (active - reactive)
Pulse output red LED on the front 10.000 imp/kWh
S0 pulse output rate (imp/kWh) 10.000 (2PU CT)/2.000/1.000 (4PU und 4PS)/100/10/1/0,1/0,01
(default = bold)
Pulse width Selectable 2 … 99 ms (depending on pulse output rate)
Memory The data is stored for up to 10 years, even without a power
supply.
4.1 Performance Criteria
Humidity during operation ≤ 75 %
Humidity during storage ≤ 95 %
International storage EN50470-1/3
Accuracy class B (=1 % accuracy)
Protection against
Dust and water IP51 (front side); IP20 (connection)
Protection class II
Ambient temperature (operation) -40 … +70°C
4PU und 4PS
2PU CT
5 A
1 A
65 A
5 A
Item/
Product
Conductor cross-section/
Conductor cross-section
Rated current/
Rated current
Ambient temperature/
Ambient temperature
40 °C
55 °C
70 °C
879-3000
879-3020
25 mm²
(fine-stranded conductor)
65 A
x
45 A
x
16 mm²
(fine-stranded conductor with insulated ferrule)
65 A
x
55 A
x
35 A
x
16 mm²
(fine-stranded conductor)
65 A
x
50 A
x
35 A
x
10 mm²
(fine-stranded conductor with insulated ferrule)
55 A
x
45 A
x
30 A
x
10 mm²
(feindrähtige Leiter/fine-stranded conductor)
55 A
x
40 A
x
30 A
x
6 mm²
(fine-stranded conductor with insulated ferrule)
41 A
x
39 A
x
27 A
x
6 mm²
(fine-stranded conductor)
41 A
x
37 A
x
25 A
x
4 mm²
(fine-stranded conductor with insulated ferrule)
32 A
x
27 A
x
17 A
x
4 mm²
(fine-stranded conductor)
30 A
x
25 A
x
15 A
x