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M8, M12, & 7/8'' Circular Connectors

HARTING M8, M12, and 7/8'' Circular Connectors feature straight and angled variants with IDC or crimp connectors for field assembly or a range of pre-assembled overmolded connectors. The M8 and M12 circular connectors are mainly used for the cabling of sensors and actuators. The 7/8'' circular connectors are primarily used for DeviceNet applications and power supplies. The range of these HARTING M8, M12, and 7/8'' connectors are further enhanced with a wide selection of solutions for the device side, such as panel feed-through, PCB adapters, and gender changers.

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Image	Part #	Mfr.	Description	Datasheet	Availability	Pricing (EUR) Filter the results in the table by unit price based on your quantity.	Qty.
Circular Metric Connectors M12-A 4PIN FML STRT 0.5M RECEPT 21033176405 HARTING 1: €14.10 170In Stock Restricted Availability 318Expected 24/11/2026	Mfr. Part No. 21033176405 Mouser Part No 617-21033176405	HARTING	Circular Metric Connectors M12-A 4PIN FML STRT 0.5M RECEPT Learn More about HARTING m8 m12 78 connectors Product available only to OEM/EMS and design business customers. Product is not shipped to consumers in the EU or the UK	Datasheet	170In Stock 318Expected 24/11/2026	€14.10 €12.21 €11.58 €10.40 View €9.25 €8.66 €8.65	Min.: 1 Mult.: 1 Restricted Availability
Circular Metric Connectors M12-A 8PIN FML STRT 0.5M RECEPT 21033176805 HARTING 1: €23.99 132In Stock Restricted Availability	Mfr. Part No. 21033176805 Mouser Part No 617-21033176805	HARTING	Circular Metric Connectors M12-A 8PIN FML STRT 0.5M RECEPT Learn More about HARTING m8 m12 78 connectors Product available only to OEM/EMS and design business customers. Product is not shipped to consumers in the EU or the UK	Datasheet	132In Stock	€23.99 €20.40 €19.13 €18.21 View €17.33 €16.25 €15.94	Min.: 1 Mult.: 1 Restricted Availability
Sensor Cables / Actuator Cables M8 4PIN MALE STRT SINGLE END 1.0M PVC 21348000481010 HARTING 1: €12.01 404In Stock Restricted Availability	Mfr. Part No. 21348000481010 Mouser Part No 617-21348000481010	HARTING	Sensor Cables / Actuator Cables M8 4PIN MALE STRT SINGLE END 1.0M PVC Learn More about HARTING m8 m12 78 connectors Product available only to OEM/EMS and design business customers. Product is not shipped to consumers in the EU or the UK	Datasheet	404In Stock	€12.01 €10.21 €9.57 €9.56 View €9.35 €9.00 €7.74 €7.48	Min.: 1 Mult.: 1 Restricted Availability
Sensor Cables / Actuator Cables M8 4PIN M/F STRT DOUBLE END 1.0M PVC 21348081481010 HARTING 1: €15.33 121In Stock Restricted Availability	Mfr. Part No. 21348081481010 Mouser Part No 617-21348081481010	HARTING	Sensor Cables / Actuator Cables M8 4PIN M/F STRT DOUBLE END 1.0M PVC Learn More about HARTING m8 m12 78 connectors Product available only to OEM/EMS and design business customers. Product is not shipped to consumers in the EU or the UK	Datasheet	121In Stock	€15.33 €13.65 €12.79 €12.18 View €11.60 €10.87 €10.35	Min.: 1 Mult.: 1 Restricted Availability
Sensor Cables / Actuator Cables M12-A 8PIN MALE STRT SINGLE END 1.0M PVC 21348400882010 HARTING 1: €18.52 145In Stock Restricted Availability	Mfr. Part No. 21348400882010 Mouser Part No 617-21348400882010	HARTING	Sensor Cables / Actuator Cables M12-A 8PIN MALE STRT SINGLE END 1.0M PVC Learn More about HARTING m8 m12 78 connectors Product available only to OEM/EMS and design business customers. Product is not shipped to consumers in the EU or the UK	Datasheet	145In Stock	€18.52 €15.75 €14.76 €14.05 View €13.67 €12.55 €12.03	Min.: 1 Mult.: 1 Restricted Availability
Sensor Cables / Actuator Cables M12-A 8PIN MALE STRT SINGLE END 5.0M PVC 21348400882050 HARTING 1: €28.17 83In Stock Restricted Availability	Mfr. Part No. 21348400882050 Mouser Part No 617-21348400882050	HARTING	Sensor Cables / Actuator Cables M12-A 8PIN MALE STRT SINGLE END 5.0M PVC Learn More about HARTING m8 m12 78 connectors Product available only to OEM/EMS and design business customers. Product is not shipped to consumers in the EU or the UK	Datasheet	83In Stock	€28.17 €23.93 €22.44 €21.36 €19.07	Min.: 1 Mult.: 1 Restricted Availability
Sensor Cables / Actuator Cables M12A 12PIN 12POLE MALE STRT 1.0M PVC 21348400C79010 HARTING 1: €28.23 204In Stock Restricted Availability 62On Order	Mfr. Part No. 21348400C79010 Mouser Part No 617-21348400C79010	HARTING	Sensor Cables / Actuator Cables M12A 12PIN 12POLE MALE STRT 1.0M PVC Learn More about HARTING m8 m12 78 connectors Product available only to OEM/EMS and design business customers. Product is not shipped to consumers in the EU or the UK	Datasheet	204In Stock 62On Order On Order Ship Dates Mfr. No: 21348400C79010 Stock: 204 Can Dispatch Immediately On Order: 1 Pending 61 Expected 09/11/2026 Factory Lead Time: 5 Weeks	€28.23 €26.38 €24.75 €24.04 €21.96	Min.: 1 Mult.: 1 Restricted Availability
Sensor Cables / Actuator Cables M12A 12PIN 12POLE MALE STRT 5.0M PVC 21348400C79050 HARTING 1: €40.51 191In Stock Restricted Availability 922On Order	Mfr. Part No. 21348400C79050 Mouser Part No 617-21348400C79050	HARTING	Sensor Cables / Actuator Cables M12A 12PIN 12POLE MALE STRT 5.0M PVC Learn More about HARTING m8 m12 78 connectors Product available only to OEM/EMS and design business customers. Product is not shipped to consumers in the EU or the UK	Datasheet	191In Stock 922On Order On Order Ship Dates Mfr. No: 21348400C79050 Stock: 191 Can Dispatch Immediately On Order: 196 Expected 05/11/2026 308 Expected 17/11/2026 418 TBD Factory Lead Time: 6 Weeks	€40.51 €35.33 €32.38 €31.10 View €29.85 €28.69 Quote	Min.: 1 Mult.: 1 Restricted Availability
Sensor Cables / Actuator Cables M12A 12PIN 12POLE DBL M/F STRT5.0M PVC 21348485C79050 HARTING 1: €49.86 108In Stock Restricted Availability 210On Order	Mfr. Part No. 21348485C79050 Mouser Part No 617-21348485C79050	HARTING	Sensor Cables / Actuator Cables M12A 12PIN 12POLE DBL M/F STRT5.0M PVC Learn More about HARTING m8 m12 78 connectors Product available only to OEM/EMS and design business customers. Product is not shipped to consumers in the EU or the UK	Datasheet	108In Stock 210On Order On Order Ship Dates Mfr. No: 21348485C79050 Stock: 108 Can Dispatch Immediately On Order: 101 Expected 10/11/2026 109 TBD Factory Lead Time: 6 Weeks	€49.86 €42.39 €39.74 €38.72 Quote Quote	Min.: 1 Mult.: 1 Restricted Availability
Sensor Cables / Actuator Cables M12-A 8PIN FML STRT SINGLE END 1.0M PVC 21348500882010 HARTING 1: €17.51 260In Stock Restricted Availability	Mfr. Part No. 21348500882010 Mouser Part No 617-21348500882010	HARTING	Sensor Cables / Actuator Cables M12-A 8PIN FML STRT SINGLE END 1.0M PVC Learn More about HARTING m8 m12 78 connectors Product available only to OEM/EMS and design business customers. Product is not shipped to consumers in the EU or the UK	Datasheet	260In Stock	€17.51 €14.88 €14.18 €13.01	Min.: 1 Mult.: 1 Restricted Availability
Sensor Cables / Actuator Cables M12-A 8PIN FML STRT SINGLE END 5.0M PVC 21348500882050 HARTING 1: €28.42 234In Stock Restricted Availability	Mfr. Part No. 21348500882050 Mouser Part No 617-21348500882050	HARTING	Sensor Cables / Actuator Cables M12-A 8PIN FML STRT SINGLE END 5.0M PVC Learn More about HARTING m8 m12 78 connectors Product available only to OEM/EMS and design business customers. Product is not shipped to consumers in the EU or the UK	Datasheet	234In Stock	€28.42 €25.40 €23.80 €22.67 €20.27	Min.: 1 Mult.: 1 Restricted Availability
Sensor Cables / Actuator Cables M8 3PIN M/F STRT DOUBLE END 10.0M PUR 21348081388100 HARTING 1: €29.10 57In Stock Restricted Availability 100On Order	Mfr. Part No. 21348081388100 Mouser Part No 617-21348081388100	HARTING	Sensor Cables / Actuator Cables M8 3PIN M/F STRT DOUBLE END 10.0M PUR Learn More about HARTING m8 m12 78 connectors Product available only to OEM/EMS and design business customers. Product is not shipped to consumers in the EU or the UK	Datasheet	57In Stock 100On Order	€29.10 €27.21 €25.86 €22.94 View €21.03 €19.71	Min.: 1 Mult.: 1 Restricted Availability
Sensor Cables / Actuator Cables M12-A 8PIN M/F ST DOUBLE END 1.0M PVC 21348485882010 HARTING 1: €23.47 299In Stock Restricted Availability	Mfr. Part No. 21348485882010 Mouser Part No 617-21348485882010	HARTING	Sensor Cables / Actuator Cables M12-A 8PIN M/F ST DOUBLE END 1.0M PVC Learn More about HARTING m8 m12 78 connectors Product available only to OEM/EMS and design business customers. Product is not shipped to consumers in the EU or the UK	Datasheet	299In Stock	€23.47 €19.95 €18.71 €18.34 View €17.11 €16.69	Min.: 1 Mult.: 1 Restricted Availability
Ethernet Cables / Networking Cables M12-A 8PIN M/F ST DOUBLE END 2.0M PVC 21348485882020 HARTING 1: €25.10 59In Stock Restricted Availability 205On Order	Mfr. Part No. 21348485882020 Mouser Part No 617-21348485882020	HARTING	Ethernet Cables / Networking Cables M12-A 8PIN M/F ST DOUBLE END 2.0M PVC Learn More about HARTING m8 m12 78 connectors Product available only to OEM/EMS and design business customers. Product is not shipped to consumers in the EU or the UK	Datasheet	59In Stock 205On Order On Order Ship Dates Mfr. No: 21348485882020 Stock: 59 Can Dispatch Immediately On Order: 60 Expected 10/11/2026 145 Expected 15/02/2027 Factory Lead Time: 16 Weeks	€25.10 €21.33 €19.78 €19.33	Min.: 1 Mult.: 1 Restricted Availability
Sensor Cables / Actuator Cables M12-A 8PIN M/F ST DOUBLE END 5.0M PVC 21348485882050 HARTING 1: €30.07 370In Stock Restricted Availability	Mfr. Part No. 21348485882050 Mouser Part No 617-21348485882050	HARTING	Sensor Cables / Actuator Cables M12-A 8PIN M/F ST DOUBLE END 5.0M PVC Learn More about HARTING m8 m12 78 connectors Product available only to OEM/EMS and design business customers. Product is not shipped to consumers in the EU or the UK	Datasheet	370In Stock	€30.07 €25.56 €23.96 €23.95 View €23.32 €22.43	Min.: 1 Mult.: 1 Restricted Availability
Ethernet Cables / Networking Cables M12-A 8PIN M/F ST DOUBLE END 10.0M PVC 21348485882100 HARTING 1: €38.14 86In Stock Restricted Availability	Mfr. Part No. 21348485882100 Mouser Part No 617-21348485882100	HARTING	Ethernet Cables / Networking Cables M12-A 8PIN M/F ST DOUBLE END 10.0M PVC Learn More about HARTING m8 m12 78 connectors Product available only to OEM/EMS and design business customers. Product is not shipped to consumers in the EU or the UK	Datasheet	86In Stock	€38.14 €36.11 €33.52 €31.41 €30.50	Min.: 1 Mult.: 1 Restricted Availability
Sensor Cables / Actuator Cables M12A 12PIN 12POLE DBL M/F STR10.0M PVC 21348485C79100 HARTING 1: €64.31 160In Stock Restricted Availability	Mfr. Part No. 21348485C79100 Mouser Part No 617-21348485C79100	HARTING	Sensor Cables / Actuator Cables M12A 12PIN 12POLE DBL M/F STR10.0M PVC Learn More about HARTING m8 m12 78 connectors Product available only to OEM/EMS and design business customers. Product is not shipped to consumers in the EU or the UK	Datasheet	160In Stock	€64.31 €54.66 €50.94 €49.24 View €48.08 Quote	Min.: 1 Mult.: 1 Restricted Availability
Sensor Cables / Actuator Cables M8 3PIN FEMALE STRT SINGL END 0.5mRECEPT 21023576305 HARTING 1: €12.33 80In Stock Restricted Availability	Mfr. Part No. 21023576305 Mouser Part No 617-21023576305	HARTING	Sensor Cables / Actuator Cables M8 3PIN FEMALE STRT SINGL END 0.5mRECEPT Learn More about HARTING m8 m12 78 connectors Product available only to OEM/EMS and design business customers. Product is not shipped to consumers in the EU or the UK	Datasheet	80In Stock	€12.33 €10.97 €10.29 €9.32 View €8.74 €8.32 €8.10	Min.: 1 Mult.: 1 Restricted Availability
Circular Metric Connectors M8 4PIN FEMALE STRT SINGL END 0.5mRECEPT 21023576405 HARTING 1: €14.04 50In Stock Restricted Availability 27Expected 09/11/2026	Mfr. Part No. 21023576405 Mouser Part No 617-21023576405	HARTING	Circular Metric Connectors M8 4PIN FEMALE STRT SINGL END 0.5mRECEPT Learn More about HARTING m8 m12 78 connectors Product available only to OEM/EMS and design business customers. Product is not shipped to consumers in the EU or the UK	Datasheet	50In Stock 27Expected 09/11/2026	€14.04 €12.63 €12.38 €12.20 View €10.53 €9.87 €9.40	Min.: 1 Mult.: 1 Restricted Availability
Circular Metric Connectors M12-A 12POLE RECEPT FML STRT SNG END .5M 21033532C00 HARTING 1: €31.15 7In Stock Restricted Availability 41On Order	Mfr. Part No. 21033532C00 Mouser Part No 617-21033532C00	HARTING	Circular Metric Connectors M12-A 12POLE RECEPT FML STRT SNG END .5M Learn More about HARTING m8 m12 78 connectors Product available only to OEM/EMS and design business customers. Product is not shipped to consumers in the EU or the UK	Datasheet	7In Stock 41On Order On Order Ship Dates Mfr. No: 21033532C00 Stock: 7 Can Dispatch Immediately On Order: 10 Expected 24/11/2026 31 Expected 14/12/2026 Factory Lead Time: 7 Weeks	€31.15 €29.95 €24.74 €24.04	Min.: 1 Mult.: 1 Restricted Availability
Circular Metric Connectors M12-D 4PIN RCPT 0.5M FML STRT SNGL END 21033752400 HARTING 1: €15.85 3In Stock Restricted Availability	Mfr. Part No. 21033752400 Mouser Part No 617-21033752400	HARTING	Circular Metric Connectors M12-D 4PIN RCPT 0.5M FML STRT SNGL END Learn More about HARTING m8 m12 78 connectors Product available only to OEM/EMS and design business customers. Product is not shipped to consumers in the EU or the UK	Datasheet	3In Stock	€15.85 €14.21 €13.32 €12.69 View €12.07 €11.32 €10.78	Min.: 1 Mult.: 1 Restricted Availability
Standard Circular Connector 7/8" 4PIN FML STRT RECEPTACLE 21043162501 HARTING 1: €31.39 3In Stock Restricted Availability	Mfr. Part No. 21043162501 Mouser Part No 617-21043162501	HARTING	Standard Circular Connector 7/8" 4PIN FML STRT RECEPTACLE Learn More about HARTING m8 m12 78 connectors Product available only to OEM/EMS and design business customers. Product is not shipped to consumers in the EU or the UK	Datasheet	3In Stock	€31.39 €26.68 €25.01 €23.81 View €22.68 €21.39	Min.: 1 Mult.: 1 Restricted Availability
Sensor Cables / Actuator Cables M8 3PIN MALE STRT SINGLE END 5.0m PVC 21348000380050 HARTING 1: €15.27 18In Stock Restricted Availability	Mfr. Part No. 21348000380050 Mouser Part No 617-21348000380050	HARTING	Sensor Cables / Actuator Cables M8 3PIN MALE STRT SINGLE END 5.0m PVC Learn More about HARTING m8 m12 78 connectors Product available only to OEM/EMS and design business customers. Product is not shipped to consumers in the EU or the UK	Datasheet	18In Stock	€15.27 €14.73 €12.16 €11.58 View €11.03 €10.34 €9.85	Min.: 1 Mult.: 1 Restricted Availability
Sensor Cables / Actuator Cables M8 4PIN M/F STRT DOUBLE END 5.0M PVC 21348081481050 HARTING 1: €18.19 29In Stock Restricted Availability 33On Order	Mfr. Part No. 21348081481050 Mouser Part No 617-21348081481050	HARTING	Sensor Cables / Actuator Cables M8 4PIN M/F STRT DOUBLE END 5.0M PVC Learn More about HARTING m8 m12 78 connectors Product available only to OEM/EMS and design business customers. Product is not shipped to consumers in the EU or the UK	Datasheet	29In Stock 33On Order	€18.19 €15.45 €13.94	Min.: 1 Mult.: 1 Restricted Availability
Sensor Cables / Actuator Cables M8 4PIN M/F STRT DOUBLE END 0.5M PUR 21348081489005 HARTING 1: €17.05 1In Stock Restricted Availability	Mfr. Part No. 21348081489005 Mouser Part No 617-21348081489005	HARTING	Sensor Cables / Actuator Cables M8 4PIN M/F STRT DOUBLE END 0.5M PUR Learn More about HARTING m8 m12 78 connectors Product available only to OEM/EMS and design business customers. Product is not shipped to consumers in the EU or the UK	Datasheet	1In Stock	€17.05 €14.50 €13.59 €12.94 View €12.32 €11.55 €11.00	Min.: 1 Mult.: 1 Restricted Availability