Designed for reliable communications

Industrial RJ45 connectors are rectangular data connectors designed for Ethernet networking in industrial applications. Data rates of 10/100Mbps and 1Gbps are supported. Ethernet magnetics as discrete parts allow for customized Ethernet port layout optimized for EMC and/or overvoltage. All Ethernet Magnetic parts are SMD and reflow solderable. Our field-installable cable connectors are available for 2 pair (10/100Mbps) and 4 pair cables (1G/10Gbps) supporting Cat5e, Cat6 and Cat6A performance. Tool-less installation with automatic wire cut off helps ensure a high quality connection and short installation time.

Reliable communication standard. Our RJ45 product portfolio is a buildup of various form factors, RJ45 Jacks, Ethernet magnetics, and field installable cable connectors, also supporting Power over Ethernet (PoE), PoE+, PoE++ (IEEE802.3at and IEEE802.3bt). Scroll down to learn more about our products and solutions. Our POLAMCO high-speed RJ45 connector systems incorporate a MIL-DTL-38999 and 26482 series III derived metal shell with full 360-degree EMC and mechanical protection and have been designed to meet the requirements of high-speed data connections.


What is an RJ45 connector?

An RJ45 connector is a square-shaped connector type mainly used for Ethernet connections. The RJ45 connector is used in point-to-point connections while the earlier systems were based upon coax implementations. Connectors come in many variants and form factors: shielded/unshielded, 10/100Mbps and 1Gbps/10Gbps, Office and industrial grade products, Straight and Angled, IP20 and IP67, Overmolded and Field Installable cable connectors, PCB variants straight and with integrated magnetics.


What is the difference between RJ11 and RJ45?

RJ11 is a smaller 4 contact version of an RJ45 (8 contacts). RJ11 is often used for telephone and telephone headset connections, not used for Ethernet. RJ45 is the main connector standard for Ethernet. 


Are cat5 and cat6A connectors the same?

The Ethernet cable performance is related to the Category marking. Cat5 indicates that the cable bandwidth is 125MHz, the cable is supporting Ethernet data rates up to 1Gbps. Cat6A indicates that the cable bandwidth is 500MHz, the cable is supporting Ethernet data rates up to 10Gbps. The Ethernet connector should be rated the same as the cable to ensure the maximum end to end performance of the system. 


Which cable uses RJ45 connectors?

2 pair (4 wire) Ethernet Cable is typically used for 10/100Mbps data rates, while 4 pair (8 wire) cable is used for 1/10Gbps data rates. The category rating of the cable should be having the right value to support the required bandwidth and data rates as well.


  • 30uinch gold plating 
  • LCP materials
  • Industrial temperature range -45 up to +85 degrees Celsius
  • Reflow solderable
  • 3 wire choke
  • 10/100Mbps and 1Gbps data rates
  • 1x1, 2x1 and 1x2 form factors with LED option available
  • PoE, PoE+ and PoE++ supported


  • Improved reliability through high Curie temperature of magnetics, high temp materials (LCP), and 3uinch gold contact plating
  • Corrosion proof through to gold plated contacts
  • Industrial temperature range for applications on factory floor not regulated from a temperature point of view
  • Excellent signal integrity and minimum saturation providing less transmission errors by use of three wire choke (no interference between PoE and signals)
  • Improved processability through a single solder process needed for equipment production
  • Optimized packaging for customers production situation through T&R and Tray packaging available


  • Tool-less Installation
  • Industrial temperature range -45 up to +85 degrees Celsius
  • Automatic wire cut off
  • 10/100Mbps and 1/10Gbps data rates
  • Reusable up to 3 times


  • Reduce installation time due to tool-less installation design with automatic wire cut-off
  • All common wire sizes supported reduces inventory requirements
  • Rugged design for use in harsh environment applications where connection quality is critical 
  • Industrial temperature range for applications on factory floor not regulated from a temperature point of view
  • Reusable up to three times allowing product to be re-used when overhauling the industrial build, or when there is an issue with the connection
  1. RJ45 Cat6a Plug (English)

TE’s new RJ45 Cat 6A plug can be terminated easily, quickly and without tools with Cat 6A cables, saving time in the field. The plug can handle 10 Gbps rates, supporting bandwidths of up to 500 MHz and offers a ruggedized design for use in industrial Ethernet applications. It is equipped with a robust and fast termination technology which includes an automatic wire cut-off function for error-free installation and optimal performance in the field. By closing the core housing, the excess wire is cut off, while at the same time the wires are connected to the plug contacts.


  • SMD
  • 10/100Mbps and 1Gbps data rates
  • PoE, PoE+ supported
  • 1, 2 and 4 port versions
  • Reflow solderable


  • Only a single solder process needed for equipment production
  • Drop in replacement removes the need to redesign the product to use TE connecor

About our products

Industrial applications require connectivity solutions that are corrosion proof, support higher temperatures and, rugged to withstand handling, shock/vibration and dust/moisture. Our industrial Ethernet solutions are engineerd for with these rugged environments in mind. They are able to handle temparatures up to 85 degrees Celsius, are design optimized to handle shock and vibration requirements and have 30 inch gold layers on the contacts to be corrosion proof. All board products are reflow solderable to prevent having our customers to use multiple solder processes for equipment production.


Also for termination of cables, rugged industrial grade products are required. Our products are easy and quick to install, can handle virtually all cable types by a single product and have been designed to be re-used in case an incorrect connection has been made. The connection itself should be steady and not show any micro-interupptions with heavy shock and vibration. Furtermore, our variant 1 and variant 14 series connectors are designed for customers are also requiring IP67 grade solutions.


  • Control cabinets
  • Robotics
  • Motor/Motor Controls
  • Machinery
  • PLC
  • and industrial Ethernet installations in many other applications
  • Aluminium, Marine Bronze and Stainless Steel shells for various applications
  • Sealed to IP 68 for fluid and dust laden environments
  • High levels of shock, vibration and mechanical impact protection
  • 38999 and 26482 styled polarized shell, with fast and secure coupling

Polamco Plugs

  • RJ45 connector supplied in kit, no other components required
  • Full grounding from shielded RJ45 plug to 38999 styled shell
  • Cable retention > 100N axial force
  • Removable Plug
  • All metal construction
  • Low profile 43mm total length
  • Temp rating: -40°C / +120°C
  • Data transmission:
  • 10 BaseT, 100 BaseTX, 1000 BaseT and
  • 10,000 BaseT networks (up to 10Gb)
  • All six 38999 and 26482 styled keyway orientations available and four additional insert orientations provide 24 total configurations

Polamco Receptacles

  • Pre-assembled one piece design for harsh environments
  • Internal grounding fingers ensures excellent continuity
  • Isolated (non-grounded) option available
  • Rear jack contained within receptacle shell
  • No assembly tooling required