M12 4-Pin Connector
Choose the Structure. We Confirm the Details.
Overmolded cables, field-wireable plugs, solder and crimp cable connectors, panel receptacles, PCB connectors and custom harnesses. Send a photo, drawing or pinout—we review the coding, gender, wiring and dimensions before quotation.
M12 4-Pin Product Range
Choose the closest structure first. We confirm coding, pinout and dimensions before production.
Produced and Checked in Our Dongguan Factory
The page below shows our connector assembly, cable processing, electrical testing and waterproof inspection capabilities.
View Factory & TestingCoding is selected according to the signal, fieldbus or industrial Ethernet application.
Choose Your M12 4-Pin Connector Structure
You do not need a perfect specification to begin. Select the closest structure and we will confirm coding, gender, termination, pinout and installation details before quotation.
Not sure which structure is correct?
A mating-face photo, old cable, equipment model, drawing or pinout is enough for an initial review.
A 4-Pin Connector Still Needs More Than a Pin Count
Two M12 4-pin connectors can look similar and still use different coding, gender, pin assignment, mounting dimensions or cable construction. We confirm the interface before recommending a product.
Coding and Keyway
A-coded, B-coded or D-coded must match the mating interface.
Gender and View Direction
We confirm male or female and distinguish mating-face from wiring-side views.
Termination Method
Overmolded, screw, spring, solder, crimp, wire lead or PCB.
Pin-to-Pin Wiring
Same pin count does not guarantee the same wiring definition.
Mechanical Fit
Panel thread, mounting direction, PCB footprint and available housing space.
Cable and Environment
Cable length, PVC or PUR, shielding, movement, oil and installation conditions.
Choose Coding by Application, Not Popularity
Sensors, actuators and general industrial signals
We still confirm pin assignment, power and signal use for the specific equipment.
Fieldbus and system-specific connections
The equipment standard and mating interface must be checked before selection.
Industrial Ethernet connections
Shielding, cable specification and connector-side wiring require confirmation.
Final ratings and dimensions depend on the selected product structure and model. We confirm them on the drawing or datasheet before production.
What Customers Usually Send Us
A complete drawing is helpful, but it is not required for the first conversation. We can begin with the information already available.
Sensor Cable with Open-Wire Tail
Typical request
“M12 4-pin female cable, 3 meters, open end.”
We confirm coding, mating-face direction, wire colors, pin-to-wire definition, cable jacket and tail treatment.
Review a Similar Requirement
Panel Connection for a Control Cabinet
Typical request
“Need a 4-pin panel connector for our controller.”
We confirm front or rear mount, male or female, panel thread, tail termination, installation direction and available space.
Review a Similar Requirement
Replacement or Extension Cable
Typical request
“Can you replace this old M12 cable?”
We compare the old sample, connector face, pinout, cable length, shielding and second-end connection before quoting.
Review a Similar RequirementFrom an Incomplete Request to a Confirmed Product
The value is not only manufacturing the connector. It is confirming the details that can cause a sample or installation failure.
Review What You Have
Photo, old sample, equipment model, drawing, datasheet or pinout.
Confirm the Interface
Coding, gender, mating-face direction and product structure.
Confirm Wiring and Fit
Pin-to-pin wiring, panel dimensions, PCB footprint, cable and tail details.
Approve Drawing or Sample
The customer reviews the confirmed configuration before volume production.
Produce and Test
Assembly, continuity checks, visual inspection and model-specific testing.
Have only a photo or old sample?
Send it first. We can identify the missing questions before asking you for a complete specification.
See How the Connector Is Made and Checked
NITAI was founded in 2012 in Dongguan. Our team manufactures industrial connectors and terminal blocks, with connector assembly, cable processing, molding and testing handled through our production workflow.
Cable and Contact Work
Cable preparation, contact termination and pin-to-wire checks are handled according to the confirmed configuration.
Connector Assembly
Shell, insert, sealing and connection components are assembled for the selected product structure.
Electrical Checks
Continuity, insulation and contact checks are applied according to the product and project requirements.
Waterproof Verification
Ingress-protection testing is performed for applicable models and properly mated configurations.
Model-Specific Testing
Testing method and rating depend on the selected connector model and mating condition.
What We Can Confirm Before Volume Production
CE, RoHS, REACH, UL and ISO documentation availability depends on the selected model, certification scope and project requirement.
Common Questions About M12 4-Pin Projects
Can you identify an M12 4-pin connector from a photo?
Are all M12 4-pin connectors wired the same way?
Can you make both standard products and custom cable assemblies?
Can you match an old cable or installed machine connection?
Is every M12 4-pin connector IP67 or IP68?
Do I need a complete drawing before asking for a quote?
Can cable length, material, shielding and pinout be customized?
Send Your M12 4-Pin Requirement for Review
You do not need to complete every technical field before contacting us. Send the information already available and we will identify what still needs confirmation.
Request a Specification Review
Required fields are kept short. Upload one product photo, drawing or PDF directly with your inquiry.