M12 Male-4-Pin to Stripped & Tinned 2.0 Wire Harness (Red-Black-White-Green), Customizable Cable Length

Important Note: IP65-IP67 waterproof performance only applies to the M12 male connector after correct panel mounting and gasket compression. The stripped and tinned open wire ends are non-waterproof, and shall not be exposed to moisture, dust or liquid. Open wire terminals must be enclosed inside sealed equipment housing or wiring box after soldering or crimping. This harness is widely used for sensor signal transmission, industrial equipment internal wiring, PLC terminal connection and automation equipment signal access. Customized length, wire gauge or special stripping dimension may be subject to minimum-order-quantity requirements. Please confirm cable length, wire specification, stripping length and sheath material before placing orders.

This M12 Male-4-Pin to stripped-tinned 2.0 wire harness adopts M12 panel-mount male 4-pin circular connector at one terminal, and four independent color-coded wires (Red, Black, White, Green) with pre-stripped and pre-tinned ends at the other side. The total cable length can be fully customized according to equipment installation distance, cabinet layout and field wiring requirements. It serves as a universal pre-fabricated transition wiring solution for industrial automation sensors, PLC control systems, on-site signal acquisition equipment and mechatronic devices. Compared with self-assembled loose wires and separately purchased M12 connector kits for manual assembly, our factory-finished pre-tinned harness has comprehensive strengths in connection reliability, installation convenience, mechanical durability, environmental adaptability and batch consistency.

First of all, integrated factory pre-processing of open wire terminals greatly simplifies on-site wiring work and reduces on-site processing errors. When customers purchase discrete M12 connectors and raw bulk wires, operators need to finish multiple complex procedures on site: wire cutting, insulation stripping, tin dipping, soldering, assembling connector housing and conduction testing. Manual operation is easily affected by worker proficiency, soldering-iron temperature and field environment. Common on-site defects include inconsistent stripping length, uneven tin coating, cold soldering, insufficient tin coverage, copper-wire strand scattering, and hidden short-circuit risk caused by stray copper filaments. Our finished harness completes insulation stripping and terminal tin-dipping inside standardized factory workshops. The four-color wires Red-Black-White-Green keep neat separation; stripping length and tin-coating thickness maintain uniform standards for each batch. The pre-tinned wire ends can be directly soldered to PCB pads, connected to screw terminals or crimped with other terminals. Operators skip the stripping and tin-dipping steps, significantly shortening on-site wiring time and lowering human-induced hidden faults. Clear fixed color coding of Red-Black-White-Green helps technicians quickly identify power positive, power negative and different signal channels, improving construction efficiency and later-period troubleshooting speed.

Secondly, industrial-grade M12 panel-mount male connector delivers reliable waterproof, dust-proof and anti-vibration field performance. The M12 4-pin male connector adopts threaded screw-lock panel installation structure. When fastened onto equipment cabinet or housing panel, the built-in high-elasticity silicone sealing gasket is squeezed tightly to achieve IP65-IP67 industrial-level dust-proof and waterproof capability. It effectively blocks outdoor dust intrusion, moisture condensation and liquid splashing damage, which is critical for automation sensors and field-deployed equipment. Threaded locking mechanism provides powerful anti-loosening performance. Even under long-term mechanical vibration, equipment shaking and cyclic temperature change, the mating counterpart connector will not accidentally loosen, avoiding intermittent signal dropout caused by poor contact. Gold-plated contact pins reduce contact resistance and strengthen anti-oxidation and anti-corrosion capacity. Stable electrical connection can be maintained for years even in humid, dusty industrial workshop surroundings. Nylon reinforced plastic shell features high mechanical strength, impact-resistance and chemical corrosion-resistance, resisting scratch and extrusion damage during equipment assembly and field application.

Thirdly, high-quality 2.0-spec multi-strand tinned-copper wire guarantees long-term bending durability and stable electrical conduction. Instead of rigid single-strand copper wire, we adopt multi-stranded flexible tinned-copper conductors. Fine stranded-wire structure endows the whole harness with superior bending and twisting performance. It can withstand repeated bending, dragging and slight movement inside narrow equipment cabinets or near moving mechanical components without internal core-wire fracture. The surface of each copper strand is uniformly tinned. Tin layer isolates copper from air and moisture, preventing copper-wire oxidation, darkening and bad contact, whether for long-term static laying or for open tinned terminals waiting for soldering connection. Two sheath material options of PVC and PUR satisfy different environmental requirements. Premium PVC outer sheath has stable physical properties for indoor static cabinet wiring with excellent cost-performance. Upgraded PUR sheath greatly improves oil-resistance, low-temperature-resistance, wear-resistance and flexural-fatigue-resistance. It fits harsh working-conditions with mechanical friction, oil splashing, low-temperature workshop environment and occasional cable movement. All insulation and sheath materials comply with RoHS environmental-protection requirements; halogen-free material option is available for overseas export projects to satisfy international industrial procurement standards.

Fourthly, strict standardized factory production and multi-item outgoing inspection ensure outstanding batch-to-batch consistency. Each harness goes through automated wire cutting, precision laser insulation stripping, high-quality terminal tin-dipping, M12 connector crimping / soldering assembly, internal strain-relief processing and full-item electrical testing in formal production workshops. Every finished harness undergoes pin-to-pin continuity test, short-circuit detection between different cores, insulation-resistance test, withstand-voltage test and visual appearance inspection. 100-percent electrical testing before delivery eliminates defective products. For manually assembled harness made on-site, every unit may differ in crimping quality, soldering status and stripping dimension, leading to inconsistent service life among individual pieces. Our factory-manufactured products keep unified standards for every production batch, effectively lowering equipment failure rate and after-sales maintenance cost arising from wiring-quality problems. Strain-relief reinforcement is applied at the transition position between M12 connector and cable body, dispersing pulling and bending stress, preventing core-wire breakage at cable root caused by external pulling force.

Fifthly, flexible multi-dimensional customization capability adapts to diverse non-standard industrial wiring requirements. We support arbitrary total-cable-length customization, breaking the limitation of fixed-length off-the-shelf products. Customers can set exact cable length according to actual installation distance between panel-mount M12 position and target soldering / terminal-connection point, avoiding waste caused by excessively long cable or assembly obstacle caused by insufficient length. Besides main-length adjustment, we can also modify wire gauge, adjust insulation-stripping length at open ends, change tin-coating thickness, adjust wire-color combination, and select shielded cable structure for strong-electromagnetic-interference sites. Shielded cable can restrain external industrial electromagnetic noise interference and guarantee stable signal transmission for analog sensor signals. Whether small-batch prototype samples for equipment R&D verification or large-volume mass-production supporting for automated equipment projects, we can provide targeted customized solutions.

Sixthly, flexible open-end design realizes diversified connection modes and improves overall project cost-efficiency. One end is standard M12 male connector for quick plug-and-play mating with corresponding M12 female plug; the other side is pre-processed open tinned wires, supporting multiple connection methods: soldering onto PCB circuit boards, clamping into PLC screw terminals, crimping with other terminal contacts, or connecting with other internal wire harnesses. This transition-style harness avoids purchasing extra intermediate adapter accessories. It directly bridges M12 field-interface and equipment internal circuit, simplifying overall system wiring architecture. The pre-finished product reduces tool requirement for on-site workers; only simple soldering or screw-clamping operation is needed, lowering technical threshold for field construction.

This M12 Male-4-Pin to Stripped & Tinned 2.0 Wire Harness (Red-Black-White-Green) is widely applied in industrial automation equipment, on-site sensor wiring, PLC control cabinets, mechanical-equipment signal transmission, test-instrument internal wiring and other mechatronic interconnection occasions.

1. Industrial Automation Sensor Connection

M12 male connector is panel-mounted on equipment housing for mating with peripheral proximity sensors, photoelectric sensors and pressure sensors; open tinned wire ends connect to internal PLC or signal acquisition board, completing sensor-signal access.

2. PLC & Industrial Control Cabinet Internal Wiring

Inside automation control cabinet, M12 male is fixed on cabinet panel for external signal input; Red-Black-White-Green pre-tinned wires are directly clamped to PLC module screw terminals, realizing fast signal wiring.

3. Mechanical & Mechatronic Equipment Signal Transition

Used as transition harness for automated machinery, packaging equipment and conveying equipment. It converts external M12 plug-in interface to internal open-wire terminals for connecting main-control circuit boards.

4. Testing & Measuring Instrument Internal Interconnection

For industrial testing instruments and data-acquisition devices. M12 male serves as external signal input port; pre-tinned wire terminals are soldered onto PCB circuit board inside instrument.

5. On-site Equipment Retrofit & Project Modification

During equipment renovation and technical-transformation projects, the pre-stripped pre-tinned harness reduces on-site processing workload, speeds up construction progress of automation upgrading.

6. Equipment R&D Prototype Trial-Production

In product-development and prototype-verification phase, customizable cable length and open tinned terminals help R&D engineers quickly build test platform and shorten equipment debugging cycle.

Q1: Which side achieves IP65-IP67 waterproof rating? Are the stripped tinned wire ends waterproof?
A1: Only the M12 male connector reaches IP65-IP67 after correct panel installation and gasket compression. The stripped and tinned open-wire ends are non-waterproof. They must be placed inside sealed housing or wiring box after connection and shall not be exposed to water spray or humid open-air environment.

Q2: Can I customize total cable length? Can stripping length and tin-coating thickness at open wire ends be adjusted?
A2: Yes. We support arbitrary total-cable-length customization. Stripping length and tin-coating dimension of Red-Black-White-Green open wires can also be adjusted according to your technical drawing. Customized requirements may trigger minimum-order-quantity requirement, please consult our sales team when submitting orders.

Q3: Do I need to select shielded cable? Under which working condition is shielding recommended?
A3: Shielded version is optional. Shielded cable is strongly recommended when this harness transmits weak analog sensor signals and works in environment with strong motor or frequency-converter electromagnetic interference. Non-shielded version is cost-effective for ordinary digital-signal and power-supply wiring.

Q4: What is difference between PVC sheath and PUR sheath, how should I choose?
A4: PVC sheath fits indoor static cabinet laying with good cost-performance. PUR sheath has superior oil-resistance, low-temperature-resistance, wear-resistance and flexural-fatigue-resistance for occasions with oil pollution, low-temperature or frequent cable movement. Operating-temperature range: PVC:-20℃~+80℃; PUR:-40℃~+85℃.

Q5: What is maximum current-carrying capacity per wire core? Can this harness be used for high-power main-power loop?
A5: Each wire core supports maximum 4A. This harness is designed for sensor signal and small-current auxiliary-power transmission, and is not suitable for high-current main-power supply circuits.

Q6: After installation, signal is unstable or intermittent, which points should I check?
A6: Please check these items: confirm M12 counterpart connector is fully screwed and locked; verify open-wire soldering or crimping position has no virtual-soldering or loose contact; check no copper strands from tinned terminals cause short-circuit; inspect cable sheath for scratch or mechanical damage. Replace harness if permanent damage exists.

Q7: Does this product include mating M12 female connector?
A7: Only this finished transition harness is supplied. Mating M12 female counterpart connector is not included in package. Customers shall purchase matching accessories according to project design.

Q8: Is small-batch sample order supported? Is there MOQ for customized specifications?
A8: Standard-spec samples are available. For customized cable length, modified stripping length, special wire-gauge and special-material requirements, minimum-order-quantity may apply, please consult sales department.

Q9: Can I change default Red-Black-White-Green wire-color sequence?
A9: Yes, we support adjusting wire-color sequence according to customer technical specifications, which belongs to customized service and may involve MOQ requirement.

Q10: Can halogen-free material be provided 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.

Thank you for reading product document of M12 Male-4-Pin to Stripped & Tinned 2.0 Wire Harness (Red-Black-White-Green), Customizable Cable Length. Our company specializes in R&D, design and manufacturing of M-series circular connector harnesses, panel-mount transition cables, stripped-tinned open-end wiring harnesses, industrial sensor cables and various non-standard custom wiring-harness solutions. Our products are widely supplied for industrial automation, PLC control system, mechanical equipment, testing-instrument and mechatronic-equipment industries.

We provide standard off-the-shelf cable assemblies and comprehensive custom services, including customizable total cable length, adjustable wire stripping length, shielded / non-shielded option, PVC / PUR / halogen-free sheath material, modified wire-color sequence and wire-gauge adjustment.

If you require technical consultation for parameter confirmation, custom-harness development, sample trial-order, bulk-product quotation or project-oriented interconnection-solution development, please get in touch with our sales-support and technical team.

Our complete product portfolio covers M12 / M8 sensor harnesses, aviation-plug cable assemblies, cross-interface conversion cables, stripped-tinned open-end transition harnesses, multi-branch split wiring harnesses and all kinds of non-standard custom wiring harness. We support small-batch sample trial, mass-volume-production delivery and project-oriented customized development.

Please send your inquiry containing product model, required total cable length, stripping-length requirement, special wire-color definition, 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.