M12 K-coded female rear mount socket connects an external male power cable connector to the equipment’s internal wiring. Choose the rear fastened version when the panel design provides the required mounting access and space for the rear hardware.
Solder and crimp termination versions are available. The unwired option allows the socket to be terminated during harness assembly, while the 0.3 m pre-wired option provides leads for routing to an internal terminal or harness connection.
The contact choices are 2+PE, 3+PE and 4+PE. These provide two, three or four circuit contacts plus one protective earth contact. Match the complete arrangement to the equipment schematic and mating connector.
Key Features
- Rear fastened installation: For equipment panels designed around a rear mount socket.
- 16 A / 630 V ratings: For AC power circuits within the listed electrical limits.
- Female K-coded connection: Accepts a compatible M12 K-coded male connector.
- Solder or crimp options: Match the termination method to the harness production process.
- Unwired or pre-wired: Choose customer termination or supplied 0.3 m leads.
- Contact configurations with PE: Two, three or four circuit contacts plus protective earth.
- Two mounting threads: PG9 and M16 × 1.5 versions.
- Unshielded design: As listed in the catalogue.
Product Dimensions

[Insert the rear mount female socket drawing and panel cut-out drawing here.]
Illustrated PG9 Version — Dimensions in mm
| Item to Check | Drawing Value |
|---|---|
| Mating thread | M12 × 1.0 |
| Panel mounting thread | PG9 |
| Overall body length shown, excluding leads | 20 |
| Upper axial section shown | 8 |
| Flange thickness shown | 2 |
| Lower axial section shown | 9 |
| Upper wrench size | SW17 |
| Lower wrench size | SW13.4 |
| Lead length | L; according to ordered version |
Check the rear mounting hardware and internal wire clearance against the drawing. The PG9 and M16 × 1.5 versions require their corresponding panel openings.
Needle Arrangement (Front View)

[Insert the K-coded female contact arrangement screenshot from page 14 here.]
| Option | Circuit Contacts | Protective Earth | Total Contacts |
|---|---|---|---|
| 2+PE | 2 | 1 | 3 |
| 3+PE | 3 | 1 | 4 |
| 4+PE | 4 | 1 | 5 |
The diagram is viewed from the mating face. Check the numbered contacts against the equipment wiring and external male connector.
Product Specifications
| Parameter | Specification |
|---|---|
| Product type | M12 K-coded female rear mount power socket |
| Mounting | Rear fastened |
| Termination options | Solder / crimp |
| Wiring options | Unwired / 0.3 m pre-wired leads |
| Standard listed | IEC 61076-2-111 |
| Rated current | 16 A |
| Rated voltage | 630 V |
| Wire size listed | 2.5 mm² / AWG14 |
| Shielding | Unshielded |
| Insulation resistance | ≥100 MΩ |
| Contact resistance | ≤5 mΩ |
| Recommended coupling torque | 0.4 N·m |
| Maximum coupling torque | 0.8 N·m |
| Temperature range, flexible use | −25°C to +80°C |
| Temperature range, static use | −40°C to +80°C |
| Protection ratings listed | IP67 / IP68 / IP69K |
| Pollution degree | 3 |
| Insulator materials listed | PA66+GF / TPU+GF |
Applications
This M12 K-coded rear mount female power socket can be considered for:
- Equipment power interfaces: Connecting an external AC cable to internal wiring.
- Control enclosures with rear mounting access: Accommodating the fastening hardware and harness behind the panel.
- Pre-wired machine assemblies: Routing socket leads to an internal connection point.
- Modular machinery: Providing a detachable power connection at the enclosure.
Select the rear mount version according to installation access, available space and circuit requirements.
7. Wiring and Lead Options
[Insert the wire colour and pin assignment screenshot here.]
| Contact Position | 2+PE | 3+PE | 4+PE |
|---|---|---|---|
| Pin 1 | — | Black 1 — BK1 | Black 1 — BK1 |
| Pin 2 | Black 2 — BK2 | Black 2 — BK2 | Black 2 — BK2 |
| Pin 3 | Black 3 — BK3 | Black 3 — BK3 | Black 3 — BK3 |
| Pin 4 | — | — | Black 4 — BK4 |
| Pin 5 / PE | Yellow/green — YE/GN | Yellow/green — YE/GN | Yellow/green — YE/GN |
“—” means the position is not used. Follow the equipment schematic for the numbered black conductors. The yellow/green conductor is the protective earth lead.
Selection and Ordering
To request the correct rear mount socket, provide:
| Selection Item | Available Choices |
|---|---|
| Contact arrangement | 2+PE / 3+PE / 4+PE |
| Termination | Solder / crimp |
| Panel mounting thread | PG9 / M16 × 1.5 |
| Wiring | Unwired / 0.3 m pre-wired |
| Custom requirements | Specify wire type or lead length |
Example enquiry: M12 K-coded female rear mount socket, 3+PE, crimp termination, M16 × 1.5 mounting, unwired.






