Circular Connector, 2/3/4/5/6/7/8/9 Pin, M18

5 out of 5 based on 2 reviews | Write a review

$50.63

Circular connector is used for connecting component and cable, cable and cable. It is a set of one plug and one socket, has simple and firm locking mechanism, easy to seal, insert and dismantle. Circular connector has 2/3/4/5/6/7/8/9 pin to select.

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Number of Pins *

SKU: ATO-CIRCN-P16

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Delivery date: 6-12 days

Overview
Related Video
Proposition 65 Warning

Circular connector has 2/3/4/5/6/7/8/9 pin to select.

Specification:

Model	ATO-CIRC-P16
Weight	0.5kg
Coupling mode	Threaded coupling
Shell material	Zinc base alloys with chromeplate
Insert material	Bakelite
Contact material	Copper (silver plating or gold plating)
Termination	Solder
Mating cycle	500 times
Temperature range	-20~+85℃
Cable diameter	≤Φ10mm
Protection class	IP55

Technology parameter:

Number of pins	2	3	4	5	6	7	8	9
Rated current/voltage	10A-150V	10A-150V	5A-125V	5A-125V	5A-125V	5A-125V	3A-125V	3A-125V
Operating voltage	AC 250V	AC 250V	AC 200V	AC 200V	AC 200V	AC 200V	AC 200V	AC 200V
Withstanding voltage (in 1 minute)	AC 1500V	AC 1500V	AC 1500V	AC 1500V	AC 1500V	AC 1500V	AC 1500V	AC 1500V
Insulation resistance at DC 500V (MΩ)	2000	2000	2000	2000	1500	1500	1500	1500
Contact resistance at 1A (MΩ)	10	10	10	10	10	10	10	10
Solder cup diameter Ф (mm)	1.7	1.7	1	1	1	1	1	1
Pin diameter Ф (mm)	1.6	1.6	1	1	1	1	1	1

Pin assignments:

Dimensional drawing (unit: mm):
Circular connector 2 to 9 pin m18 dimensional drawing
Note: Dust cap is not in the packing list.
Tips: Coupling mode of circular connector
Circular connector has four coupling modes, such as threaded coupling, bayonet coupling, push-pull coupling and card locked coupling.

Threaded coupling is the most common coupling mode and has the advantages of simple process, low manufacturing cost and wide range of application.
Features: not suitable for rapid plugging and pulling, no in-place warning sound.
Bayonet connection has a rapid connection speed owing to its long screw lead of three bayonet groove. So it can achieve rapid connection and separation.
Features: small operation space, rapid plugging and pulling, in-place warning sound.
Push-pull coupling is the most rapid speed among the four coupling mode. It only need to rectilinear move to achieve connection, separation and locking. It is only suitable for the connectors with a small separating force.
Features: small operation space, can achieve rapid plugging and pulling, and achieve the high-density installation of multiple connectors.
Card locked coupling has good electromagnetic interference resistant performance and blind-mate function. But its range of application is limited by its complex process, high manufacturing cost and big shape.
Features: rapid plugging and pulling, in-place warning sound.

In the video, ATO will take 5 pin M16 circular connector for circular connector assembly instructions.

*WARNING: This product can expose you to chemicals, including lead, which is known to the State of California to cause birth defects or other reproductive harm. For more information, go to www.P65Warnings.ca.gov.

Existing reviews of Circular Connector, 2/3/4/5/6/7/8/9 Pin, M18

About rated current

I would like to inquire about the M18 circular connector, model ATO-CIRC-P16. Does the 10A/150V rated current of this two-pin connector refer to the rated current of each pin, or the total rated current of the entire connector?

From: Keske | Date: 29/06/2026

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ATO Responded

Hello, it refers to the total rated current of the entire connector.

I won't regret buying an M18 circular connector

This M18 circular connector is what I wanted. This 2/3/4/5/6/7/8/9pin circular connector worked perfectly for my application. I won't regret buying it.

From: Kowski | Date: 04/08/2021

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