M12 8-Pin Male Panel-Mount to XH2.5-5P (Brown-White-Blue-Black-Gray) & XH2.5-3P (Green-Yellow-Orange) Splitting Harness, Customizable Cable Length
This Y-splitting harness is designed for low-voltage signal transmission and small-current auxiliary power distribution, not suitable for high-current main-power circuit. Customized total length, branch length, shielding requirement or special pin-out may be subject to minimum-order-quantity requirements. Please confirm M12 pin definition, XH wire color sequence, main-branch length ratio and sheath material before placing orders.
Product Specifications
Item |
Parameter |
Product Name |
M12 8-Pin Male Panel-Mount to XH2.5-5P (Brown-White-Blue-Black-Gray) & XH2.5-3P (Green-Yellow-Orange) Splitting Harness, Customizable Cable Length |
Main Connector |
M12-8P male panel-mount circular connector, metal threaded housing, nut-locking panel through-hole installation, 8-pin contacts |
Branch Connector 1 |
XH2.5-5P female housing, 2.5mm pitch, wire color sequence: Brown, White, Blue, Black, Gray |
Branch Connector 2 |
XH2.5-3P female housing, 2.5mm pitch, wire color sequence: Green, Yellow, Orange |
Conductor |
Multi-strand flexible tinned-copper wire core, excellent bending resistance and anti-oxidation property; color-coded insulated wires for easy circuit identification |
Cable Jacket |
Premium black PVC / PUR outer sheath, anti-aging, abrasion-resistant, oil-resistant, dust-proof |
Cable Length |
Fully customizable overall cable length and branch wire length; standard reference lengths: 0.2m, 0.3m, 0.5m, 1m, 1.5m, 2m |
Protection Rating |
IP67 for M12 male panel-mount side (effective only after complete nut tightening and proper panel installation with sealing gasket); XH2.5 branch connector ends are non-waterproof, for internal cabinet and equipment interior application only |
Rated Voltage |
250V AC / DC |
Rated Current |
Max 3A per circuit for signal and low-voltage auxiliary power |
Insulation Resistance |
≥1000 MΩ |
Dielectric Withstand Voltage |
AC 1500V, 1 minute without breakdown or flash-over |
Mating Cycles |
M12 circular connector ≥1000 insertion-removal cycles; XH2.5 plastic housing connectors ≥500 insertion-removal cycles |
Contact Material |
M12 connector: copper alloy with gold-plated contacts; XH terminals: tin-plated copper alloy |
Pitch Dimension |
XH series connector pitch: 2.5mm |
Customizable Options |
Custom main cable length, custom branch wire length, shielded / non-shielded cable, PVC / PUR sheath, modified wire color sequence, custom pin assignment, cable label marking |
Compliance Standard |
RoHS compliant, halogen-free material optional for global export projects |
Important Note: The IP67 waterproof performance of M12-8P male panel-mount connector can only take effect when the connector is installed on equipment panel with gasket and locking nut fully tightened. Two XH2.5 branch connectors are non-waterproof and must be placed inside sealed equipment housing or control cabinet, and shall not be directly exposed to outdoor rain, dust and liquid splashing. This Y-splitting harness is designed for low-voltage signal transmission and small-current auxiliary power distribution, not suitable for high-current main-power circuit. Customized total length, branch length, shielding requirement or special pin-out may be subject to minimum-order-quantity requirements. Please confirm M12 pin definition, XH wire color sequence, main-branch length ratio and sheath material before placing orders. This harness realizes one M12 input signal splitting into two groups of XH2.5 internal interfaces, simplifying internal wiring of automation equipment.

Product Features & Advantages
This custom Y-branch wiring harness adopts M12-8P panel-mount male circular connector as input end, and splits into two independent output branches: one XH2.5-5P 5-pin connector with fixed wire sequence Brown-White-Blue-Black-Gray, and one XH2.5-3P 3-pin connector with wire sequence Green-Yellow-Orange. Both main cable and each branch segment support customizable length according to customer equipment panel layout, internal assembly space and PCB connection position. It is a mature pre-fabricated splitting interconnection solution widely used in industrial automation sensors, PLC peripheral modules, intelligent mechanical equipment, automated test fixtures and various mechatronic control devices.
In automation equipment engineering practice, many projects need to lead multi-channel signals from external M12 sensor interface into equipment cabinet, then split them into two different groups to connect separate PCB boards or sub-modules. Without this finished splitting harness, engineers have to purchase M12 panel-mount connector, multi-core cable, XH2.5-5P and XH2.5-3P terminals and housings separately, and manually complete wire cutting, stripping, crimping terminals, housing assembly, Y-junction soldering or splicing, bundling, continuity testing and other complicated procedures on site. Manual processing brings multiple obvious drawbacks. Terminal crimping quality heavily depends on worker proficiency and crimp tool status; bad crimp, loose terminal and wire-strand-out-of-housing often occur. Manual wire-splitting junction is prone to poor stress relief, and wire fracture may happen under long-term vibration environment. Meanwhile, manually-made harness shows poor consistency among batches, large difference in branch length and wire arrangement, which brings trouble for mass production quality control. Manual processing consumes plenty of working hours and reduces assembly efficiency. Our factory pre-assembled Y-splitting harness effectively solves above-mentioned on-site wiring pain-points.
First of all, integrated one-to-two splitting structure simplifies equipment internal wiring. The M12-8P metal panel-mount male connector can be firmly fixed on equipment housing or cabinet panel by locking nut together with sealing gasket. After correct installation, it reaches IP67 dust-proof and water-proof performance for external field connection with matching M12 female sensor cable. Inside the device, the multi-core cable is divided into two independent branches: 5-pin XH2.5-5P and 3-pin XH2.5-3P, which can be directly plugged onto corresponding PCB sockets or sub-control modules. There is no need for operators to conduct secondary wire-splitting, soldering or crimping work. Thread-locking M12 connector delivers outstanding anti-vibration and anti-loosening capability, adapting to continuous-vibration working condition of automation machinery. Gold-plated M12 contacts keep low contact resistance and stable signal transmission for long-term operation.
Secondly, standardized fixed wire-color sequence reduces wiring error risk. This harness adopts defined color coding: XH2.5-5P branch follows Brown-White-Blue-Black-Gray; XH2.5-3P branch follows Green-Yellow-Orange. Clear color correspondence helps engineers quickly check pin-to-wire mapping during equipment assembling and after-sales maintenance. All terminal crimping, housing insertion, cable splitting and strain-relief processing are finished under standardized production flow. Every finished harness passes strict outgoing inspection, including pin-to-pin continuity test, multi-channel short-circuit detection and visual appearance inspection, to guarantee each signal channel conducts correctly without short-circuit or open-circuit hidden danger. Customers obtain plug-and-play finished harness and directly complete internal interconnection, greatly shortening equipment assembly and debugging cycle.
Thirdly, multi-dimensional flexible customization meets diversified mechanical and electrical requirements. Besides arbitrary main-cable total length, the length of each XH output branch can also be customized separately according to PCB layout distance. Shielded cable is optional for application under strong electromagnetic interference industrial environment to restrain external noise and improve signal integrity. Two sheath materials are selectable: cost-effective PVC for static internal wiring; PUR sheath owns excellent oil-resistance, wear-resistance and bending-fatigue-resistance, suitable for scenarios with frequent cable movement and oil contamination. We support modified wire color sequence, re-assigned pin-out definition and custom cable label printing, convenient for field identification and after-sales troubleshooting. Both small-batch prototype sample orders and large-volume mass-production orders for batch automation equipment are acceptable.
Fourthly, compact XH2.5 pitch connector saves internal PCB layout space. XH series 2.5mm pitch plastic connectors are widely adopted on domestic and international industrial control PCBs. This harness converts 8-pin M12 field interface into two common XH2.5 internal interfaces, avoiding additional intermediate adapter modules, optimizing equipment BOM list and decreasing potential failure points caused by multi-level conversion connections. Y-splitting transition structure makes internal wiring neat and ordered, beneficial for whole-machine quality management.
Fifthly, it reduces comprehensive manufacturing cost and rework risk for equipment manufacturers. Production operators skip multiple complex manual steps: cable cutting, wire stripping, terminal crimping, XH housing assembling, manual wire-splitting junction processing and self-inspection. Assembly workload is significantly decreased, meanwhile quality fluctuation caused by different operator skill-levels is eliminated. It must be emphasized that two XH2.5 branch connectors have no waterproof performance and should be installed inside closed cabinet. M12-8P panel-mount connector can achieve IP67 rating only under correct panel installation, gasket placement and nut full tightening.
Core Advantage Summary List:
- One-to-two Y-splitting harness: M12-8P male panel-mount to XH2.5-5P (Brown-White-Blue-Black-Gray) and XH2.5-3P (Green-Yellow-Orange)
- M12 metal panel-mount connector with nut locking structure, realize IP67 protection after proper panel installation, anti-vibration and anti-loosening for field sensor connection
- Fixed standard wire-color coding for two XH branches, reduce wiring-mistake risk during assembly and maintenance
- Factory-completed terminal crimping, housing assembly and splitting processing; 100% full-item electrical test before delivery, plug-and-play
- Customizable main-cable length and respective branch wire length; optional shielded / non-shielded, PVC / PUR outer sheath
- Support modified pin assignment, wire-color adjustment and custom cable marking for project-specific demands
- Convert external M12 field interface into popular 2.5mm-pitch XH internal interfaces, simplify internal wiring of automation equipment
- Eliminate on-site manual splitting, crimping and soldering work, improve production efficiency and lower rework probability
- Compact XH2.5 connectors save PCB layout space, optimize BOM and reduce intermediate adapter accessories
- RoHS-compliant raw materials, halogen-free option available for worldwide export industrial-equipment projects
Application Scenarios
This M12-8P male to dual XH2.5 splitting harness is widely used in industrial automation equipment, sensor signal distribution, PLC peripheral modules, automated test fixtures, embedded mechatronic control devices and non-standard automation machinery.
1. Industrial Automation Sensor Signal Distribution
External M12-interface sensors are installed on machine surface; this harness leads multi-channel signals into cabinet and splits them into two XH branches, connecting to different signal acquisition PCB sub-boards.
2. PLC Peripheral & Control Module Interconnection
For small-size control cabinets, M12 serves as field input interface, and internal signals are split into XH2.5 connectors to plug onto relay modules or signal acquisition boards.
3. Automated Test Fixture & Test-Bench System
Various test fixtures adopt M12 circular connector as external interface. This finished splitting harness distributes multi-path signals to two independent internal test circuit boards.
4. Non-Standard Custom Automation Machinery
Custom-built special-purpose machinery uses M12 for external sensor access, and internally needs two groups of different-pin-count XH interfaces to drive actuators or collect feedback signals.
5. Embedded Mechatronic Equipment
Compact embedded control devices reserve M12 panel-mount interface for field connection, and adopt XH2.5 sockets on internal PCBs; this harness realizes fast signal splitting transition.
6. Prototype Trial-Production & Equipment R&D Stage
During product development and prototype verification, customizable-length splitting harness helps engineers rapidly complete interface matching and shorten R&D debugging cycle.
Frequently Asked Questions (FAQ)
Q1: Are both ends of this harness waterproof? What are waterproof prerequisites?
A1: Only M12-8P panel-mount male connector can reach IP67 protection rating, which is valid only after correct panel installation, gasket placement and nut fully tightened. XH2.5-5P and XH2.5-3P branch connectors are non-waterproof, must be placed inside sealed cabinet or housing, not for direct outdoor exposed application.
Q2: Can I customize main-cable length and two branch-wire lengths separately? Can wire-color sequence or pin-out be modified?
A2: Yes. We support custom main-cable length, respective branch length, adjust wire-color sequence and re-assign pin-to-wire mapping according to your technical drawing. Fully-customized requirements may trigger minimum-order-quantity requirement, please consult sales team while placing orders.
Q3: Should I select shielded cable? Under which condition is shielding recommended?
A3: Shielded construction is optional. Shielded cable is strongly recommended for multi-channel signal transmission under strong electromagnetic interference industrial environment. Non-shielded version is cost-effective for ordinary digital signal and low-power auxiliary-power application.
Q4: What is the difference between PVC and PUR sheath, how to make selection?
A4: PVC is suitable for fixed internal laying with good cost-performance. PUR sheath delivers better oil-resistance, abrasion-resistance and bending-fatigue-resistance, fit for occasions with frequent cable movement and oil contamination.
Q5: What is the maximum current each branch can bear? Can it be used for high-power power-supply loop?
A5: Each circuit supports max 3A current. This harness is designed for signal transmission and small-current auxiliary power distribution, not applicable for high-current main-power circuit.
Q6: Signal communication abnormal after installation, which key points shall be checked?
A6: Please check following items: confirm M12 connector is fully mated and locking nut is tightened; verify XH housings are fully inserted without loose terminals; double-check wire-color and pin-out match equipment definition; inspect cable sheath for scratch or damage. Replace harness if physical damage exists.
Q7: Does this product contain matching M12 female mating connector?
A7: Only this finished splitting harness is supplied. Matching M12 female connector is not included in package; customers need to purchase mating accessories according to project design.
Q8: Can small-batch sample order be supported? Is there MOQ for customized specifications?
A8: Standard-spec samples are available. For fully-customized branch length, special pin-assignment and special wire-color, minimum-order-quantity may apply, please consult our sales department.
Q9: What is the insertion-removal service life of XH2.5 connectors?
A9: XH2.5 plastic housing connectors achieve ≥500 times insertion-removal cycles under normal operating condition, suitable for internal equipment connection which does not require frequent plug-unplug.
Q10: Can halogen-free material be supplied for export-oriented projects?
A10: Yes, halogen-free raw-material option can be provided upon request to satisfy international environmental-protection procurement standards for overseas-equipment exports.
Contact Us
Thank you for reading product document of M12 8-Pin Male Panel-Mount to XH2.5-5P & XH2.5-3P Splitting Harness, Customizable Cable Length. Our company specializes in R&D, design and manufacturing of M12 circular connector harnesses, Y-branch splitting wiring harnesses, XH series connector assemblies, panel-mount sensor cables and various non-standard custom industrial interconnection solutions. Our products are widely supplied to industrial automation, non-standard machinery, test-instrument, embedded mechatronic equipment and sensor system industries.
We provide standard off-the-shelf cable assemblies, meanwhile deliver comprehensive custom services: customizable main-cable length, independent branch-wire length, shielded / non-shielded selection, PVC / PUR / halogen-free sheath material, modified pin assignment, adjusted wire-color sequence and custom cable label marking.
If you have technical consultation for parameter confirmation, custom harness requirement, sample trial application, bulk-order quotation or project-oriented interconnection-solution development, please get in touch with our sales-support and technical team.
Our complete product portfolio includes M10 / M12 sensor cable assemblies, aviation plug harnesses, Y-splitting multi-branch wiring harnesses, XH / PH series connector cables, panel-mount waterproof connector wires and all kinds of non-standard custom wiring harness. We support small-batch sample trial, mass-volume-production delivery and project-targeted customized development.
Please send your inquiry containing product model, required main-cable & branch length, special pin-out requirement, order quantity, application environment and other special technical specifications. Our professional sales and technical team will reply promptly and provide targeted technical suggestions plus formal commercial quotation.