2026年6月9日
What is a standard M12 circular connector?
You’ve probably searched “standard M12 connector” expecting a simple answer. But if you’ve ever received the wrong cable...
Detailed Product Information
Technical Data & Reference
Structured parameters, material notes, application context and frequently asked questions for engineering and procurement evaluation.
Competitor & Cross-Reference
- Alternative Type
- Intermateable With
- Competitor Part Number
- Phoenix Contact SACC-M12FS Series / Binder 713 & 813 Series / TE Connectivity T4110 Series / Murrelektronik 7000-12221 (Standard IEC 61076-2-101 / 2-111 Straight Field-Wireable Female Sockets)
- Mates With
- Standard M12x1 Male Plugs, Panel-Mount Male Receptacles, and Overmolded Male Cordsets with matching Coding (A, B, D, K, L, M, S, or T Code) compliant with IEC 61076-2-101 / IEC 61076-2-111
Intermateable: This part is mechanically and electrically compatible for mating with the listed competitor connector. Mixed use in the same connector system is supported.
Technical Specifications
- Connector Type
- M12 Straight Female Socket (Plastic Field Installation)
- Coding & Number of Positions
- A-Code (4, 5, 8 Pin); B-Code (5 Pin); D-Code (4 Pin); K-Code (5 Pin); L-Code (5 Pin); M-Code (6 Pin); S-Code (4 Pin); T-Code (4 Pin)
- Termination Style
- Field-Wireable Screw Termination
- Mounting / Orientation
- Free-Hanging / In-Line Cable Mount, Straight (180°)
- Key Dimensions
- Overall Length: 55mm (Ref.); Coupling Thread: M12x1; Wrench Flats: SW18 / SW17 / SW16 (for OD 6–8mm & 8–10mm), SW18 / SW14 / SW13 (for OD 4–6mm)
- Contact Pin Size
- Ø0.8mm (A-Code 8-Pin); Ø1.0mm (A-Code 4/5-Pin, B-Code, D-Code, M-Code); Ø1.5mm (K-Code, L-Code, S-Code, T-Code)
- Applicable Cable Outer Diameter (OD)
- 4–6mm (A, B, D Code); 6–8mm (A Code); 8–10mm (K, L, M, S, T Code)
- Mating Durability
- ≥ 500 Mating Cycles
- Ingress Protection Rating
- IP67 (In correct locking state)
- Standard Compliance
- IEC 61076-2-101 (A/B/D-Code), IEC 61076-2-111 (K/L/M/S/T-Code), RoHS Compliant
- Packaging Method & Quantity
- Bulk / Industrial Bag Packaging (Specific PCS/Bag or PCS/Carton not specified in drawing)
Material Composition
| Material | Value / Description |
|---|---|
| Plastic Shell, Insulation Housing & Nuts | Nylon 66, Black (Connection Nut & Pressing Nut) |
| M12 Metal Coupling Thread | Zinc Alloy, Nickel Plated |
| Female Contact | Copper Alloy, Gold Plated |
| Termination Screw | Carbon Steel, Nickel Plated |
| O-Rings | Nitrile Rubber (NBR), Black |
| Cable Seal | Silicone, Black |
| Internal Cable Clamp | Nylon 66, Black |
Technical Characteristics
| Characteristic | Value |
|---|---|
| Rated Current | 2A (8-Pin A-Code); 4A (4/5-Pin A/B/D-Code); 8A (6-Pin M-Code); 12A (K/S/T-Code); 16A (5-Pin L-Code) |
| Rated Voltage | 30V DC (8-Pin A-Code); 60V DC (5-Pin A/B-Code); 63V DC (L/T-Code); 250V DC (4-Pin A/D-Code); 630V DC (K/M/S-Code) |
| Operating Temperature Range | -40°C to +80°C |
| General Linear & Angular Tolerances | X.: ±0.5mm; X.X: ±0.25mm; X.XX: ±0.15mm; Angles (X°): ±1° |
Application Scenarios
-
Industrial Ethernet & Profinet Infrastructure: In-line field termination of 4-Pin D-Code data cables for industrial switches, machine vision cameras, and PLC communication ports.
-
Factory Automation & Sensor-Actuator Networks: On-site assembly of 4-Pin, 5-Pin, and 8-Pin A-Code sensor cables, photoelectric switches, and incremental encoders.
-
Process Control & Fieldbus Trunk Lines: Custom-length Profibus and CANopen field wiring utilizing 5-Pin B-Code straight female sockets.
-
Distributed AC/DC Power & Motor Drives: High-current power delivery up to 16A / 630V DC using K, L, M, S, and T-Code connectors for servo drives, field power supplies, and three-phase motors.
-
Rugged Industrial Machinery: IP67-sealed field interconnects for packaging lines, CNC equipment, and automated material handling systems exposed to coolant, dust, and washdown.
Frequently Asked Questions
How does the straight M12 field-wireable screw termination streamline on-site cable assembly?
The straight (180-degree) M12 female socket utilizes internal nickel-plated carbon steel screw terminals that clamp stripped wire conductors directly using a standard screwdriver, eliminating the need for crimping tools or soldering irons in the field. Measuring 55mm (Ref.) in overall length, it allows technicians to build custom-length cables or repair damaged cordsets rapidly on-site while maintaining full IP67 environmental protection.
Which cable outer diameters (OD) and wrench flats correspond to each M12 coding variant?
Under IEC 61076-2-101, B-Code (5-Pin) and D-Code (4-Pin) sockets accept 4–6mm cable ODs, while A-Code (4/5/8-Pin) sockets are available for both 4–6mm and 6–8mm cable ODs. Under IEC 61076-2-111, high-power K, L, M, S, and T-Code variants accommodate larger 8–10mm power cables. For mechanical assembly, the 4–6mm body uses SW18, SW14, and SW13 wrench flats, whereas the larger 6–8mm and 8–10mm bodies utilize SW18, SW17, and SW16 wrench flats.
What materials ensure long-term electrical reliability and IP67 sealing in this M12 socket?
High conductivity and corrosion resistance are achieved through gold-plated copper alloy female contacts (Ø0.8mm, Ø1.0mm, or Ø1.5mm) paired with a nickel-plated zinc alloy M12x1 locking thread rated for ≥500 mating cycles. Environmental sealing from -40°C to +80°C is provided by a black Nylon 66 housing, dual black nitrile rubber (NBR) O-rings, an internal black Nylon 66 cable clamp, and a compression-fitted black silicone cable seal.
What are the rated current and voltage specifications across the different M12 coding options?
Signal and data codings support 2A at 30V DC (8-Pin A-Code), 4A at 60V DC (5-Pin A-Code and B-Code), and 4A at 250V DC (4-Pin A-Code and D-Code). Power codings support significantly higher loads: 8A at 630V DC (6-Pin M-Code), 12A at 63V DC (4-Pin T-Code), 12A at 630V DC (5-Pin K-Code and 4-Pin S-Code), and up to 16A at 63V DC (5-Pin L-Code).
Overview and Application Notes
The M12 Straight Female Field-Wireable Connector is a heavy-duty plastic circular socket designed for fast, tool-free on-site cable assembly and industrial field maintenance. Engineered with a straight (180-degree) black Nylon 66 body and reliable nickel-plated carbon steel screw terminals, this field-installable receptacle supports cable outer diameters ranging from 4mm to 10mm. Available in A-Code, B-Code, D-Code (4-Pin for Industrial Ethernet), and high-power K/L/M/S/T-Code polarizations, it guarantees IP67 waterproof and dustproof sealing in the locked state for demanding factory automation and industrial networking environments.
Key Features
- Multi-Coding Standardization: Fully compliant with IEC 61076-2-101 (A-Code 4/5/8-Pin, B-Code 5-Pin, D-Code 4-Pin) and IEC 61076-2-111 (K-Code 5-Pin, L-Code 5-Pin, M-Code 6-Pin, S-Code 4-Pin, T-Code 4-Pin) for signal, fieldbus, Industrial Ethernet, and power transmission.
- Field-Installable Screw Termination: Internal screw-clamp terminals allow rapid conductor termination in the field using a standard screwdriver without specialized crimping or soldering equipment.
- Robust Construction & Metallurgy: Features a rugged black Nylon 66 shell, nickel-plated zinc alloy M12x1 coupling thread, gold-plated copper alloy contacts, dual black nitrile rubber (NBR) O-rings, and a black silicone cable seal.
- Wide Electrical Load Range: Rated from 2A/4A (signal and data configurations) up to 16A (L-Code DC power) and voltages from 30V DC to 630V DC across coding variants.
- Harsh Environment Durability: Delivers IP67 ingress protection when mated, operates stably from -40°C to +80°C, and withstands ≥500 mating cycles.
Engineering Specifications & Field Assembly Guidance
This straight M12 female socket features a compact 55mm (Ref.) axial profile with an M12x1 threaded locking interface. To ensure full IP67 sealing and mechanical strain relief during field wiring, select the rear cable gland assembly matching your cable jacket outer diameter: 4–6mm (utilizing SW18, SW14, and SW13 hex wrench flats) or 6–8mm / 8–10mm (utilizing SW18, SW17, and SW16 hex wrench flats). Strip the cable jacket and individual conductor insulation to standard lengths, secure the wire leads under the nickel-plated carbon steel screws, and torque the rear Nylon 66 pressing nut to compress the internal silicone cable seal and black Nylon 66 cable clamp firmly around the outer jacket.
