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DIN Rail Mount Interface Modules & Breakout Boards

Explore DIN rail mount interface modules, breakout boards and connector adapters for organized wiring inside industrial control cabinets, test fixtures and machine panels. This collection includes RJ45-to-terminal block modules, multi-port RJ45 distribution modules, DB9 / DB15 / DB25 interface adapters and selected RJ45-to-D-Sub connection solutions designed for DIN rail installation.

These modules help bring external interfaces into a cabinet, distribute connections, extend an existing connector or break individual conductors out to terminals for convenient wiring, testing and maintenance. Select the required module by interface type, port count, connector gender, breakout method and confirmed wiring requirement.

Important selection note: An RJ45 connector does not automatically mean an Ethernet connection. Depending on the module, RJ45 may be used for Ethernet, serial, fieldbus or application-specific signal wiring. Confirm the pinout, signal type and whether the product is a pass-through, terminal breakout or port-distribution module before ordering.

DIN Rail DB9 Male To Female Breakout Board
The DIN-rail mountable DB9 male-to-female breakout board facilitates the extension and signal breakout of DB9 male and female interfaces. Designed to streamline industrial signal conversion and cable
DIN Rail Mount RJ45 Breakout Board 3 Port
The 3-Port DIN Rail Mount RJ45 Breakout Board splits a single RJ45 signal into three output ports, facilitating network expansion and cable management in industrial environments; it is suitable for
DIN Rail RJ45 Terminal Block Adapter 45 Degree
This 45-degree DIN-rail RJ45 terminal adapter is designed for industrial Ethernet connections. It features a space-saving angled design, supports RJ45-to-terminal output, and mounts onto 35mm DIN
9 Way DIN Rail RJ45 To Terminal Block Adapter
The 9-way DIN-rail RJ45-to-terminal block adapter features an industrial DIN-rail mounting design, enabling stable conversion of RJ45 signals to terminal blocks; it facilitates on-site wiring and
8 Way RJ45 To Terminal Block Adapter DIN Rail
This 8-channel RJ45-to-terminal DIN-rail adapter distributes RJ45 signals to eight terminal outputs. Supporting DIN-rail mounting, it facilitates industrial wiring and multi-device connectivity,
DIN Rail RJ45 To Terminal Block 6 Way Adapter
This DIN-rail mount RJ45 to 6-channel terminal adapter distributes RJ45 signals to six terminal outputs. Featuring a compact design that facilitates industrial wiring and multi-device connectivity,
4 Way RJ45 to Terminal Block DIN Rail
This 4-channel RJ45-to-terminal DIN-rail adapter distributes a single RJ45 signal into four terminal outputs. Supporting DIN-rail mounting, it facilitates industrial wiring and multi-device
DIN Rail 3 Way RJ45 to Terminal Block Adapter
This DIN-rail mountable 3-way RJ45-to-terminal adapter distributes RJ45 network signals to three sets of terminal connections. Designed for easy wiring and signal distribution in industrial
DIN Rail RJ45 To DB9 Male Breakout Board Adapter
This DIN rail adapter converts an RJ45 Ethernet interface to a DB9 male connector, facilitating connections for industrial equipment. It supports standard 35mm DIN rail mounting, is suitable for
DIN Rail RJ45 To DB9 Terminal Block Adapter
This DIN-rail mount RJ45 to DB9 terminal adapter enables signal conversion between RJ45 and DB9 serial interfaces. Supporting terminal block wiring and DIN-rail installation, it facilitates
RJ45 2 Way Buss to Terminal Block DIN Rail
This RJ45 dual-channel bus-to-terminal DIN-rail module distributes RJ45 interface signals to terminal connections, facilitating convenient bus wiring and device integration; it supports DIN-rail
DIN Rail RJ45 to Terminal Block Breakout Board
This DIN-rail mount RJ45 terminal breakout board is designed for industrial Ethernet signal distribution. It splits the RJ45 interface into multiple terminal outputs and supports DIN-rail mounting;

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How to Select a DIN Rail Mount Interface Module

DIN rail mounting simplifies cabinet installation, but the connector function and internal wiring must still match the equipment interface. Start by confirming the original connector and signal arrangement, then select the module type that provides the required breakout, extension or distribution function.

1. Identify the equipment interface
Confirm whether the connection is RJ45, DB9, DB15, DB25 or another interface. Check connector gender, contact count and the available mounting or cable-routing space.

2. Define the required function
Choose between direct extension, terminal breakout, multi-port distribution, RJ45-to-D-Sub interface conversion or a module with a specific cable-exit angle.

3. Verify pinout and signal type
Confirm the circuit or signal assignment for every contact. Connector shape alone does not confirm compatibility, especially for RJ45 interfaces used in non-Ethernet applications.

4. Confirm installation details
Check the DIN rail profile, enclosure depth, wire-entry direction, terminal style, wire gauge range and any marking or labeling requirements for the finished cabinet.

Compatibility reminder: Some modules are designed for direct signal breakout or physical connection management rather than Ethernet switching, protocol conversion or signal conditioning. Verify the product drawing and specified pinout before connecting powered equipment or network ports.

Common DIN Rail Interface Module Types

RJ45 to Terminal Block
Break out an RJ45 connector to individual terminals for clear field wiring, testing and maintenance access.

Multi-Port RJ45 Modules
Provide centralized RJ45 connection points for organized cabinet routing, multi-device connectivity or application-specific port distribution.

DB9 / DB15 / DB25 Adapters
Mount D-Sub interfaces directly on the rail for connector extension, terminal breakout or equipment-side access inside a control cabinet.

RJ45 to DB9 Interfaces
For applications where an RJ45-format connection is routed to a DB9 interface. Confirm the actual protocol and custom pin mapping before selection.

45° Angled Modules
Support more compact cable routing in shallow enclosures or locations where a straight connector exit is not practical.

DIN Rail Breakout Boards
Provide a structured transition from panel or equipment connectors to labeled, serviceable cabinet-side wiring points.

Typical Applications

DIN rail interface modules are commonly used in PLC and automation cabinets, machine-control enclosures, industrial test equipment, service panels, communication interface cabinets and custom electrical assemblies. They help create accessible, organized connection points while reducing loose adapter cables and simplifying maintenance work.

Custom DIN Rail Interface Assembly Support

For project-specific cabinet wiring, we can support custom interface assemblies based on your drawing, existing module or equipment-side connector requirement. This may include specified connector combinations, port quantities, terminal layouts, cable lengths, pin mapping, labels and enclosure or mounting preferences.

Existing part number, datasheet, product photo or wiring drawing
Required connector type, gender and number of ports
Pinout, signal type and whether shielding or grounding is required
Required function: pass-through, terminal breakout, distribution or interface conversion
DIN rail profile, enclosure space and preferred cable-entry direction
Labeling, wire marking, cable length or other assembly requirements

Request a Compatibility Check

FAQ

What does a DIN rail interface module do?

It mounts a connector interface, breakout board or distribution point on a DIN rail inside a cabinet. Depending on the model, it can extend a connector, provide terminal access to individual contacts or organize multiple connection ports.

Does an RJ45 DIN rail module always support Ethernet?

No. RJ45 is a connector format, not a guarantee of Ethernet protocol. It may carry Ethernet, serial, fieldbus or custom application signals. Confirm the pinout and intended signal type before use.

Can I use an RJ45-to-DB9 adapter for any serial device?

Not automatically. RJ45-to-DB9 wiring can differ by equipment brand and application. Match the DB9 gender, pin mapping and the required serial or control interface before connecting equipment.

Are these modules DIN rail mountable on a standard 35 mm rail?

Many products in this collection are designed for standard 35 mm DIN rail installation. Confirm the detailed product drawing and mounting specification of the selected model before ordering.

Can you make a custom DIN rail breakout board or interface module?

Yes. Please send the connector requirements, port count, pinout, required function and mounting or enclosure details. A wiring diagram, existing sample or part number helps us confirm the appropriate configuration.

PCM Cable Co., Ltd. is one of the leading din rail manufacturers and suppliers in China. We warmly welcome you to buy advanced din rail in stock here from our factory. All customized products are with high quality and low price. Contact us for quotation and free sample.