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-M12FSB-5CON-PG9 (1662272) / Binder 713 Series (99-0436-10-05) / Murrelektronik 7000-12381-0000000 / TE Connectivity T4110401051-000
- Mates With
- Standard IEC 61076-2-101 M12 B-Code 5-Pin Male Panel Receptacles and Male Cable Plugs (M12x1 Thread)
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 Circular Field Wireable Connector Socket (Female Straight)
- Coding & Number of Positions
- B-Code 5-Pin (Main); Also available in A-Code (4/5/8P), D-Code (4P), K/L-Code (5P), M-Code (6P), S/T-Code (4P)
- Termination Style
- Screw-Clamp Termination (Fast Field Installation, No Soldering Required)
- Orientation & Locking Thread
- 180° Straight Inline, M12x1 Threaded Coupling
- Key Dimensions
- Overall Length: 55mm Ref. (Standard Signal Shell) / 60mm Ref. × Ø20mm (Power Shell); Wrench Flats: SW14 / SW16 / SW17 / SW18
- Applicable Cable OD
- 4–6mm (B-Code 5P / D-Code 4P); 4–6mm or 6–8mm (A-Code 4/5/8P); 8–10mm (K/L/M/S/T Power Codings)
- Contact Pin Diameter
- Ø1.0mm (B-Code 5P, A-Code 4/5P, D-Code 4P, M-Code 6P); Ø0.8mm (A-Code 8P); Ø1.5mm (K/L/S/T-Code)
- Mating Durability
- ≥ 500 Mating Cycles
- Waterproof Rating
- IP67 (In correct locked state)
- Standard Compliance
- IEC 61076-2-101 (A/B/D-Code), IEC 61076-2-111 (K/L/M/S/T-Code), RoHS Compliant
Material Composition
| Material | Value / Description |
|---|---|
| Plastic Shell & Pressing Nut | Nylon 66 (PA66), Black |
| Insulation Housing & Connection Nut | Nylon 66 (PA66), Black |
| Internal Cable Clamp | Nylon 66 (PA66), Black |
| M12 Metal Locking Thread | Zinc Alloy, Nickel Plated |
| Female Socket Contact | Copper Alloy, Gold Plated |
| Terminal Clamping Screw | Carbon Steel, Nickel Plated |
| Interface O-Rings | Nitrile Butadiene Rubber (NBR), Black |
| Rear Cable Seal | Silicone Rubber, Black |
Technical Characteristics
| Characteristic | Value |
|---|---|
| Rated Current | 4A (B-Code 5P / A-Code 4-5P / D-Code 4P); 2A (A-Code 8P); 8A (M-Code 6P); 12A–16A (K/L/S/T-Code) |
| Rated Voltage | 60V DC (B-Code 5P / A-Code 5P); 250V DC (A/D-Code 4P); 30V DC (8P); 63V–630V DC (Power Codings) |
| Operating Temperature Range | -40°C to +80°C |
| General Tolerances | Linear: ±0.15mm / ±0.25mm / ±0.5mm |
Application Scenarios
-
PROFIBUS DP and Interbus industrial fieldbus trunk and drop cable terminations
-
On-site custom cable length assembly and rapid field maintenance in factory automation
-
Inline sensor, actuator, and remote I/O module connections in automated production lines
-
Heavy-duty AC/DC motor power supply connections (when configured with K, L, M, S, or T power codings)
-
Packaging machinery, logistics conveyors, and harsh-environment industrial control systems
Frequently Asked Questions
What cable outer diameters (OD) and shell lengths apply to this M12 straight field wireable socket?
The B-Code 5-Pin and D-Code 4-Pin configurations support 4mm to 6mm cable outer diameters (with 4–6mm and 6–8mm options for A-Code) in a 55mm Ref. length housing. High-power K, L, M, S, and T-Code versions feature a 60mm Ref. length and Ø20mm body diameter designed to accommodate heavy-duty 8mm to 10mm cables.
What materials are used in the screw-clamp termination and locking mechanism of this straight M12 socket?
The straight receptacle features Ø1.0mm gold-plated copper alloy female contacts secured by nickel-plated carbon steel clamping screws inside a black Nylon 66 insulation housing. External mechanical coupling is handled by a nickel-plated zinc alloy M12x1 thread and a black Nylon 66 pressing nut and cable clamp.
How does the hybrid NBR and silicone sealing system achieve IP67 waterproof protection?
This connector utilizes dual black nitrile rubber (NBR) O-rings at the front mating and shell interfaces for oil and chemical resistance, combined with a flexible black silicone rear cable seal compressed by the pressing nut. Together, they provide a watertight IP67 seal across an operating temperature range of -40°C to +80°C.
What are the electrical ratings and IEC standards for the B-Code 5-Pin and power coding options?
Compliant with IEC 61076-2-101, the B-Code 5-Pin female socket is rated for 4A current and 60V DC over a minimum of 500 mating cycles. Power variants in the same series comply with IEC 61076-2-111, supporting up to 12A/630V DC (K-Code, S-Code), 16A/63V DC (L-Code), 8A/630V DC (M-Code), and 12A/63V DC (T-Code).
Overview and Application Notes
The M12 B-Code 5-Pin Female Straight Field Wireable Connector Socket is engineered for rapid on-site cable assembly, sensor-actuator trunk lines, and PROFIBUS/Interbus fieldbus networks. Designed in strict compliance with IEC 61076-2-101, this straight inline receptacle features a screw-clamp wire termination mechanism housed in a rugged black Nylon 66 body (55mm Ref. length). Accommodating cable outer diameters from 4mm to 6mm (with 6–8mm and 8–10mm gland options across the series), it delivers IP67 waterproof sealing when mated. This field-installable platform is also configurable across A, D, K, L, M, S, and T codings (4 to 8 pins) under IEC 61076-2-101 and IEC 61076-2-111 standards.
Key Features
- Fast Screw-Clamp Termination: Nickel-plated carbon steel clamping screws enable reliable, tool-assisted field wiring without soldering or specialized crimping tools.
- Standard & Coding Compliance: Precision B-Code 5-Pin female socket interface compliant with IEC 61076-2-101 for industrial fieldbus systems (also available in A, D, K, L, M, S, and T codings).
- Electrical Performance: Rated at 4A and 60V DC for 5-pin B-Code/A-Code configurations (up to 16A / 630V DC available in K/L/M/S/T power codings).
- Durable Industrial Construction: Black Nylon 66 plastic shell, insulation housing, cable clamp, and pressing nut paired with a nickel-plated zinc alloy M12x1 locking thread and Ø1.0mm gold-plated copper alloy contacts.
- IP67 Hybrid Sealing System: Dual black nitrile rubber (NBR) O-rings combined with a rear black silicone cable seal protect internal terminations from dust, moisture, and oil across -40°C to +80°C.
Engineering Specifications & Field Assembly Guidance
This straight M12 field-installable socket measures approximately 55mm in overall length for standard signal codings (and 60mm Ref. with a Ø20mm outer diameter for heavy-duty power codings). The rear compression nut and internal black Nylon 66 cable clamp accommodate 4–6mm cable outer diameters for B-Code 5-Pin assemblies (with 6–8mm options for A-Code and 8–10mm for K/L/M/S/T power codings), ensuring secure mechanical strain relief. During field installation, use standard spanners on the wrench flats (SW14 / SW16 / SW17 / SW18 depending on shell size) to tighten the M12x1 coupling nut and pressing nut, guaranteeing full gasket compression and IP67 protection over ≥500 mating cycles.
