Industrial waterproof RJ45 extension cable with panel-mount female to RJ45 male design, multiple locking and cover options, and 0.3M/0.5M/1M lengths for industrial Ethernet equipment.
The Industrial Waterproof RJ45 Extension Cable series is designed to extend an internal RJ45 Ethernet interface to the external panel of an enclosure, control cabinet, or industrial machine.
The basic connection architecture is:
P1: Panel-mount RJ45 female P2: Cable-mounted RJ45 male
A standard Ethernet cable can be connected to the external female port, while the internal RJ45 male plug connects directly to an industrial PC, Ethernet switch, controller, network module, or other equipment with an RJ45 female port.Compared with a conventional RJ45 patch cable, this design adds a fixed panel-mount interface, allowing the Ethernet port to become an integrated part of the equipment enclosure.
Product 4: Hinged automatic cover + Black / White / Blue / Yellow
All four versions are available in: 0.3M / 0.5M / 1M standard cable lengths.
They are suitable for industrial automation, industrial PCs, control cabinets, communication equipment, test systems, machine vision, and embedded Ethernet applications.
Quick comparison
ltem
Product 1
Product 2
Product 3
Product 4
P1
RJ45 Female
RJ45 Female
RJ45 Female
RJ45 Female
P2
RJ45 Male
RJ45 Male
RJ45 Male
RJ45 Male
Mounting
Front Nut
Rear Nut
Rear Nut
Panel Mount
Known Cutout
M25.2
Drawing
Drawing
Drawing
Cover
Belted Screw Cap
Belted Screw Cap
No Cover
Hinge Flip Cover
Cable Length
0.3/0.5/1M
0.3/0.5/1M
0.3/0.5/1M
0.3/0.5/1M
Feature
M25.2 Front Locking
Rear Nut Mounting
Quick Open Interface
Quick Flip Cover
BestFit
Installation ofequipment on the front
Control cabinet/Enclosure
Long-term connection device
High-frequency plug-in device
Type 1:
M25.2 Front-Nut RJ45 Panel Extension Cable
Product 1 uses an M25.2 panel cutout with a front-nut locking structure.
P1 is a panel-mount RJ45 female interface with an external threaded body and tethered screw-on protective cap. P2 is an RJ45 male plug.
The front-nut structure is suitable for equipment designs where installation or maintenance access from the front side of the panel is preferred.
Standard lengths:0.3M / 0.5M / 1M
Type 2
Rear-Nut Waterproof RJ45 Extension Cable
Product 2 uses the same:
RJ45 panel female → extension cable → RJ45 male
connection architecture but employs a rear-nut locking design.
The connector body passes through the panel opening and is secured by a retaining nut from the rear side.
A tethered screw cap is provided for the external RJ45 interface.
Available lengths:0.3M / 0.5M / 1M
Type 3:
Single-Hole Rear-Nut RJ45 Panel Extension Cable
Product 3 features a round single-hole rear-nut panel mounting structure without an external screw cap or hinged cover.
The front side provides direct access to the RJ45 female interface, while the cable terminates in an RJ45 male plug internally.
The capless structure reduces access steps and is suitable for continuously connected Ethernet applications, protected equipment areas, and installations where quick RJ45 access is preferred.
Standard lengths:0.3M / 0.5M / 1M
For applications involving water, dust, or outdoor exposure, the complete enclosure protection strategy should be considered because this version does not use an independent port cover.
Type 4:
RJ45 Hinged-Cover Waterproof Extension Cable
Product 4 uses a hinged automatic protective cover.
Unlike a removable screw cap, the cover remains mechanically attached to the panel connector through its hinge. The RJ45 port can be accessed by opening the cover and protected again by closing it after use.
Four housing colors are available:Black / White / Blue / Yellow
Standard cable lengths:0.3M / 0.5M / 1M
The color options can match different equipment designs or provide visual identification between different Ethernet ports, equipment zones, or functions.
This configuration is particularly suitable for industrial equipment requiring frequent Ethernet cable connection and disconnection.
Product Features
01
Integrated RJ45 Female-to-Male Extension
All four configurations use an RJ45 female-to-male extension architecture, allowing the internal Ethernet port to be extended to the equipment panel without changing the original RJ45 interface.
02
Three Standard Cable Lengths
Three standard lengths are available:
0.3M / 0.5M / 1M
allowing the cable length to match the distance between the internal Ethernet device and panel.
03
Multiple Panel Mounting Structures
Front-nut, rear-nut, and different round panel structures accommodate different enclosure layouts and assembly processes.
04
Three Port Protection Designs
The series offers:
Tethered screw cap / Capless / Hinged cover
configurations for different access and protection requirements.
Product Breakdown
Why Is This Product Needed ?
Internal RJ45 ports are often difficult to access.
A panel-mount extension assembly brings the Ethernet interface to the equipment exterior:
It enables easy panel access, quick connection, reduced stress on internal ports, cleaner wiring, and a standardized external Ethernet interface for OEM equipment.
Typical Applications
Test, Measurement, and R&D Equipment
HMI and Industrial Display Equipment
Industrial PCs and Embedded Systems
Core Performance Advantages
◆ External Access to Internal Ethernet Ports
Allows Ethernet access from outside the enclosure without opening the equipment during routine connection and maintenance.
◆ Improved OEM Interface Standardization
OEM manufacturers can maintain a consistent external RJ45 interface while connecting different internal computers, controllers, or network modules.
◆ Reduced Stress on Internal RJ45 Ports
The panel connector separates external cable handling from the internal Ethernet device and helps isolate mechanical loads.
◆ Flexible Maintenance Architecture
If the internal network module is replaced, the panel interface can remain in place while the internal RJ45 male plug is reconnected.
How to Select the Right Version ?
For front-side panel locking:
→ Product 1 – M25.2 Front-Nut Version
For rear-side locking with a screw cap:
→ Product 2 – Rear-Nut Tethered-Cap Version
For continuously connected applications without a separate protective cover:
→ Product 3 – Capless Rear-Nut Version
For frequent Ethernet cable access:
→ Product 4 – Hinged-Cover Version
Then select:0.3M / 0.5M / 1M according to the internal cable routing distance.
Frequently Asked Questions
Product FAQ
What Are the Main Differences Between the Four Products ?
The primary differences are the panel mounting method and protective cover design.
Product 1 uses an M25.2 cutout, front-nut locking, and tethered screw cap. Product 2 uses rear-nut locking with a tethered cap. Product 3 uses rear-nut mounting without a cover. Product 4 uses a hinged cover.
All four use an RJ45 panel female-to-male extension architecture.
What Cable Lengths Are Available ?
tandard lengths are:
0.3M / 0.5M / 1M
Alternative custom lengths can be evaluated for OEM volume orders.
What Does M25.2 Mean ?
According to the current product information, Product 1 uses an M25.2 panel cutout with front-nut mounting.
M25.2 should not be interpreted as every outside dimension of the connector. The engineering drawing should be checked before panel machining.
How Should I Choose Between Screw-Cap and Hinged-Cover Versions ?
A tethered screw cap is suitable when the Ethernet port is used less frequently and a screw-secured cover is preferred.
A hinged cover is more convenient for frequent cable connection and disconnection because the cover remains attached to the connector body.
Are Wholesale and OEM Services Available ?
Yes.
The series is suitable for wholesale RJ45 extension cables, custom waterproof RJ45 connectors, industrial RJ45 connector manufacturer projects, OEM RJ45 panel connectors, and custom RJ45 cable assemblies.
Drawing, cable length, mounting method, pinout, and Ethernet requirements should be confirmed before volume production.
Contact Premier Cable for Your Custom Harness Project
Send us your connector part number, pinout, cable specification, length, application and quantity. Our team can support prototype samples and volume production.
