Receptacle Families
Match the receptacle to the cordset that will plug into it. The Product Family field on each product page names the Turck family.
| Connector |
Turck Family |
Mounting Threads Offered |
| M8 | Picofast | Front or rear mount with locknut; PCB pin versions |
| M12 | Eurofast | PG9, PG13.5, PG16, 1/2-14 NPSM, 1/2-14 NPT, M20 |
| M16 | Versafast | M18, 1/2-14 NPT, 3/8-18 NPT, M20 |
| 1/2" | Microfast | 1/4-18 NPT, 1/2-14 NPSM, 1/2-14 NPT, M20 |
| 7/8", 1", 1-1/8" | Minifast | 1/2-14 NPSM, 1/2-14 NPT, 3/4-14 NPT, M20 |
| M23, M27 | Multifast | Front mount, rear mount, long-thread, or flange |
| Power (7/8", 1-1/8", 1-3/8", M12, M16, M23, M40) | Powerfast | 1/2-14 NPT, 3/4-14 NPT, M20, flange, varies by size |
Mounting Style and Termination
| Option |
What It Means |
| Front mount | Installs from outside the enclosure, threaded into the hole or held by a locknut on the inside. |
| Rear mount (FD) | Installs from inside the enclosure with the locknut on the outside face. |
| Back panel mount (P) | Mounts to the back of a panel. |
| Flange mount | Bolts to the enclosure with a square flange; common on M23 and power receptacles. |
| Wire leads | Prewired leads for terminal blocks. The lead length in meters is in the part number (for example -0.5 or -1). |
| PCB pins / solder cup | For mounting on a circuit board or soldering your own wires inside a device. |
| Housing material | Nickel-plated brass is standard; V in the part number means stainless steel; K means nylon on some families. |
Reading an M12 Receptacle Part Number
Example: FK 4.4-1/M20, from the Turck Connectivity Part Number Key (B2401).
| Code |
Meaning |
| F | Receptacle |
| K / S | Female (K) or male (S) contacts |
| (blank) / FD / P | Housing style: front mount, rear mount, back panel mount |
| 4.4 | Wiring code: 4 = 3 wires, 4.4 = 4 wires, 4.5 = 5 wires, 8 = 8 wires |
| -1 | Lead length in meters (no number = PCB pins or solder cup) |
| /M20 | Mounting thread (blank = PG9, /14.5 = 1/2-14 NPSM, /14.5/NPT = 1/2-14 NPT) |
Ordering Notes That Prevent Mistakes
- NPT vs. NPSM: 1/2-14 NPT is tapered and seals in the thread; 1/2-14 NPSM is straight and relies on a gasket or locknut. They are not interchangeable in a tapped hole.
- Gender for the cordset: a female receptacle mates with a male cordset and the reverse. Decide which side carries live power before choosing.
- Front vs. rear mount: check which side of the wall you can reach during installation and how thick the panel is.
- Lead length: order leads long enough to reach the terminal block inside the enclosure.
- Seal unused receptacles: add closure caps to any receptacle left unplugged, and order the mating cordset for the rest.
Receptacle FAQ
What is the difference between front mount and rear mount receptacles?
A front mount receptacle is installed from the outside of the enclosure and secured with a locknut on the inside. A rear mount receptacle is installed from inside the enclosure with the locknut on the outside face. Choose based on which side of the wall you can reach and how the receptacle must be serviced.
Which mounting thread should I choose?
Match the thread to the hole or fitting in your enclosure. 1/2-14 NPT is common on North American enclosures and conduit fittings, while PG9 and M20 are common on European equipment. Turck lists the thread at the end of the part number, such as /14.5/NPT or /M20.
Why use a receptacle instead of a cable gland?
A receptacle gives the enclosure a quick-disconnect connection, so field devices and cables can be unplugged and replaced without opening the panel or rewiring terminals. Prewired receptacles also speed commissioning and reduce wiring errors. A cable gland is permanent, so swapping a device means rewiring it.
Are Turck power receptacles NFPA 79 compliant?
Turck Powerfast receptacles provide an NFPA 79 compliant wiring method for AC and DC conveyor, material handling, motor power, and lighting applications. They replace hard wiring with a quick-disconnect power connection. Confirm the voltage, current, and approvals for the specific part on its product page.
Need Help Specifying a Receptacle?
Tell us the connector, enclosure thread, panel thickness, and wiring, and the Automation Distribution team will match the receptacle and mating cordset.
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