Db25 Wire Color Code

Back to the list of cabling color codes: 25 pair cable's color code table. Every pair is identified by a combination of 5 tip and 5 ring colors. Please note that CAT5 cable shown for clarity of the illustrations (tightly twisted conductors). CODE 1: CODE 2: CODE 2 ( next ) 1 Black 2 White 3 Red 4 Green 5 Brown 6 Blue 7 Orange 8 Yellow 9 Purple 10 Grey 11 Pink 12 Tan: 1 Black 2 White 3 Red 4 Green 5 Orange 6 Blue 7 White - Black 8 Red - Black 9 Green - Black 10 Orange - Black 11 Blue - Black 12 Black - White 13 Red - White 14 Green - White 15 Blue - White 16 Black - Red 17 White.

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November 28 ,2019 M12 Connector Coding, M12 Connector Pinout, M12 Cable Wiring Color Code FLECONN will introduce m12 connector and m12 cable coding, pinout, wiring color code and installation types for wide readers in designing automation equipment's power and signal connection systems.

If you want to get a safe, reliable, sealed and waterproof power and signal connection between your actuators, sensors and industrial devices, robots, automation equipment, you’d better choose IP67 circular waterproof m12 connectors and cable assemblies.

How to choose suitable m12 connectors and cable assemblies for your applications?
How to identify m12 circular connector coding?
How to connect different types of color of core wire to correct pins / positions of m12 male or female connectors?
How to choose a suitable m12 connector and cable assembly to be installed into your devices?

In order to help wide readers solve the upper questions and design and assemble power and signal connection systems for concrete industry applications, I’ll introduce them by following different subjects:

I. M12 Connector Coding

There are following male and female A-Coded, B-coded, C-coded, D-coded, X-coded, S-coded, T-coded, L-coded, P-coded m12 connectors.

You may identify these coding types of m12 series by below contact layout diagrams:

1. M12 A-coding Connector 3pins 4pins 5pins 8pins 12pins 17pins male pin layout diagram (front view)

Application: m12 A-coding male connector is used for actuator-sensor plug connections for DeviceNet, IO link and Profibus.

2. M12 A-coding Connector 3contacts 4contacts 5contacts 8contacts 12contacts 17contacts female contacts layout diagram (front view)

Application: m12 A-coding female connector is used for actuator-sensor plug connections for DeviceNet, IO link and Profibus.

3. M12 B-coding connector 5 pins male pin and female contact layout diagram:

Applications: Fieldbus connections for Profibus and Interbus

4. m12 C-coding connector 3pin 4pin 5pin 6pin connector pin and contact layout diagram

5. M12 D-coding Connector 4 pole male pin and 4 pos female contact layout diagram:

Applications: Industrial Ethernet, Profinet, Ethernet/IP and EtherCat

6. M12 X-coding 8 pole male pin and 8 positions female contacts layout faceview:

Applications: Cat6A, high-speed 10Gbit rugged industrial Ethernet.

7. M12 S-coding connector 2+PE, 3+PE male and female pin layout faceview

Applications: Motor, Frequency-convertors, motor operated switches, PSUs for Power, 620V, 12A

8. M12 T-coding connector 4 pole male and female contact arrangement

Applications: Fieldbus comp, passive distribution boxes, motors, PSUs for Power, 63V, 12A

9. M12 L-coding Connector male and female 4pin + PE contact layout diagram

Application: L-coded M12 Power Connector with max 16A current comes true the change from big Power vs small Size alternative to both big Power and small Size. It can be used in the PROFINET application on the condition that needing big power supply and small space. Using L-code M12 connectors means no more difficult choices when designing smaller, more powerful PROFINET system components.

10. M12 P-coding Connector 5 pin male and female contact arranglement.

II. M12 Connector Pinout

1. m12 sensor connector pinout

M12 a-code 3 pin 4 pin 5 pin male and female sensor connector pinout

M12 a-coded 8 pin 12 pole male and female sensor connector pinout

2. M12 male connector pinout

M12 A-coding B-coding D-coding 3 4 5 8 12 pin male connector pinout

3. M12 female connector pinout

M12 A-coded B-coded D-coded 3 4 5 8 12 pole pos female connector pinout

4. m12 4 pin connector pinout

5. m12 5 pin connector pinout

6. m12 8 pin connector pinout

7. m12 12 pin connector pinout

8. m12 17 pin connector pinout

9. m12 Ethernet connector pinout

10. ProfiBus m12 connector pinout

ProfiBUs M12 2Pin 3Pin 4Pin B-Coding Connector Pinout

M12 4 Pin 5 Pin B-Coding ProfiBus Connector Pinout

11. ProfiNet m12 connector pinout

12. DeviceNet m12 connector pinout

13. m12 power connector pinout

M12 S-Coding K-Coding, T-coding L-Coding Power Connector Pinout

III. M12 Connector Wiring Color Code

1. M12 Connector Color Code

2. M12 Cable Color Code

3. M12 Wire Color Code

4. M12 Connector 4 Pin Color Code

5. M12 Connector 5 Pin Color Code

6. M12 8 Pin Connector Color Code & 12 Pin Connector Color Code

7. M12 17 Pin Connector Wire Color Code

8. M12 CANopen / Devicenet Connector Wire Color Code

9. M12 Ethernet Connector Cable Color Code

10. M12 INTERBUS Connector Wire Color Code

11. M12 Ethernet Connector Wire Colour Code

12. M12 Profinet EhterCAT Connector Wire Color Code

13. M12 A-Coded 8-Pole Cat5E Ethernet Connector Wire Color Code

14. M12 X-Coded 8-Pole Cat6E Ethernet and Varan Connector Wire Color Code

15. M12 A-Coded 4-Pole SFC-Interface and CC-Link Connector Wire Color Code

16. M12 S-Coded 2+PE and 3+PE Pole Connector Wire Color Code

17. M12 T-coded 4-Pin Power Connector Wire Color Code

18. M12 L-coded 4+PE Contacts Power Connector Wire Color Code

IV. M12 Connector Categories

1.M12 Field Wireable Connector

2.M12 Panel Mount Connector


3.M12 PCB Connector

4.M12 X-coded Connector

5.M12 D-Coded Connector

6.M12 Molding type Connector and cable assemblies

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Electricity is one of the important types of energy and power that we use in our daily lives. It is an essential part of modern life and the economy of a country depends on it. We use electricity for residential, industrial, commercial, transport etc. The electric power that we use at our residence is generated at a distant power plant.

Actually, in order to use the electric power at our homes, three important process are involved. They are generation of electricity at power plants, transmission of the generated power through transmission lines and distribution at the residence and industries. Once it is distributed to our homes, we can use it to power up different appliances.

In order to use the electricity in our homes, a proper wiring is required. The collection of Electrical wiring and electrical devices like switches, sockets, meters and fittings is called Electrical Installation or Building Wiring. An electrical wire is a single solid or twisted Copper or Aluminum conductor with or without any insulation.

Each wire used for electrical wiring is marked with information like wire gauge, ampacity, maximum voltage, and maximum temperature. But a general color code is used to identify different types of conductors which are used in electrical wiring. We know that the power can be in either single – phase or three – phase.

Depending on the phase of the power supply, different colored wires are used for different voltages. In case of a single phase power supply, there are three wires one each for line, neutral and protective ground. In case of a three phase power supply, there are three wires for lines, one for neutral and one for protective ground.

With the help of color codes of electrical wires, they can be easily and safely identified. There are some safety measurements that are to be followed while dealing with electrical wiring and the color codes of wires will help in implementing those safety measurements as a single code is followed in that particular jurisdiction.

Depending on the local rules and laws, different jurisdictions have different views on color coding of the wires. Some color codes for electrical wiring are mandatory while some are optional.

There are some standards like IEC (International Electro technical Committee) for most of the European Union, National Electrical Code for the US, Canadian Electric Code for Canada etc.

Understanding of these electrical wiring color codes is important as the properties of different wire may be different from other and wrongful placement or connections may be hazardous. Some of the standard color codes that are used in electrical wiring are described below.

NEC Color Code for US

The United States National Electrical Code (US NEC) has made mandatory color code for neutral power conductors and protective ground conductor. Apart from these mandatory colors, any color can be used for line or hot power conductors. The common color code for three phase in, on or behind the wall electrical wiring is shown below.

In three phase power supply, the combination of Black, Red and Blue wires for power conductors are used for 120/240V AC whereas the combination of Brown, Orange and Yellow wires for power conductors are used for 277/480 V AC.

In case of single phase power supply, Black wire is used as the line wire and in case of 220V supply, Red wire is used as the secondary line conductor.

IEC Color Code for most of the European Union (Including UK from 2004)

Most of the European Countries follow the International Electro-technical Commission’s electrical wiring color code. United Kingdom had its own color code until 2004. But from March, 2004, the UK started following the IEC color code.

In the old IEC color code, all the lines in three phase supply are either brown or black. This created a lot of problem. Hence, the new color code is introduced. UK started using the IEC code from March, 2014. Before that, it had its own code for electrical wiring. The old color code in UK (until 2004) is shown below.

CEC Color Code for Canada

The Canadian Electric Code governs the electrical wiring color code for Canada. The color code practice is very similar to that of the US because of the harmonization effect. Only White is used for Neutral conductor and Green and bare conductor is used for protective ground.


The standard for electrical wiring color code in India is as follows. According to the old standard, Red is used for live (or line) power conductor, Black for neutral and Green for protective earth or ground.

The new color code is introduced recently (although the old convention is pretty much still widely used). In the new color code for electrical wires, Brown is used for live (or line), Blue is used for neutral conductor and Green for earth.

In case of a three phase power supply, the combination of Red, Yellow and Blue are used for the active line power conductors, Black color for neutral conductor and Green or Green – Yellow for protective ground.

Rs232 Db25 Pinout

All the above mentioned color code for electrical wiring is to transmit AC current from the mains. In case of wiring DC power, like solar or computer networks, the following standard has to be followed.

IEC DC Power Wiring Color Code

DC power installations can be divided into earthed or unearthed systems. The following table describes the color code for DC power according to IEC standard.

NEC Color Code for the US in DC Power Electrical Wiring

Similar to the AC power systems, the NEC also has suggested a mandatory color code for neutral conductor and protective earth or ground. In case of neutral conductor, the color can be White or Grey and for protective earth, the color is Green, Green – Yellow or Bare conductor.

There is no recommended color code for unearthed (or ungrounded) systems as they are not entertained due to safety issues. But generally, Red is used for positive and Black is used for negative wires in case of 2-wire unearthed DC power system.

Db25 Wire Color Code Rgb

The following table describes the color code for DC power electrical wiring in the US.

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