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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.
Sensor Cables / Actuator Cables M12A 12PIN 12POLE FML STRT 1.0M PUR 21348500C78010 HARTING 1: 37,33 € 10On Order	Mfr. Part No. 21348500C78010 Mouser Part No 617-21348500C78010	HARTING	Sensor Cables / Actuator Cables M12A 12PIN 12POLE FML STRT 1.0M 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	10On Order	37,33 € 32,63 € 30,58 € 29,13 € View 27,74 € 26,00 €	Min.: 1 Mult.: 1 Restricted Availability
Sensor Cables / Actuator Cables M12A 12PIN 12POLE MALE RA 1.0M PVC 21348600C79010 HARTING 1: 33,82 € 10Expected 10/11/2026	Mfr. Part No. 21348600C79010 Mouser Part No 617-21348600C79010	HARTING	Sensor Cables / Actuator Cables M12A 12PIN 12POLE MALE RA 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	10Expected 10/11/2026	33,82 € 29,14 € 27,31 € 26,02 € View 24,77 € 23,22 €	Min.: 1 Mult.: 1 Restricted Availability
Sensor Cables / Actuator Cables M12A 12PIN 12POLE DBL M/F RA 10.0M PUR 21348687C78100 HARTING 1: 76,62 € 10Expected 16/11/2026	Mfr. Part No. 21348687C78100 Mouser Part No 617-21348687C78100	HARTING	Sensor Cables / Actuator Cables M12A 12PIN 12POLE DBL M/F RA 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	10Expected 16/11/2026	76,62 € 69,39 € 65,27 € 64,65 € View 61,99 € Quote	Min.: 1 Mult.: 1 Restricted Availability
Ethernet Cables / Networking Cables M12-D 4PIN M/M STRT DOUBLE END 2.0M PVC 21349292405020 HARTING 1: 59,35 € 4On Order	Mfr. Part No. 21349292405020 Mouser Part No 617-21349292405020	HARTING	Ethernet Cables / Networking Cables M12-D 4PIN M/M STRT 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	4On Order	59,35 € 50,45 € 47,29 € 45,04 € 42,93 €	Min.: 1 Mult.: 1 Restricted Availability
Ethernet Cables / Networking Cables M12-D 4PIN M/F STRT DBL END 5.0M PUR 21349293477050 HARTING 1: 94,73 € 2Expected 17/11/2026	Mfr. Part No. 21349293477050 Mouser Part No 617-21349293477050	HARTING	Ethernet Cables / Networking Cables M12-D 4PIN M/F STRT DBL END 5.0M 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	2Expected 17/11/2026	94,73 € 80,52 € 75,48 € 71,88 € 71,59 €	Min.: 1 Mult.: 1 Restricted Availability
Sensor Cables / Actuator Cables M8 4PIN M/F STRT DOUBLE END 2.0M PVC 21348081481020 HARTING 1: 15,94 € 1Stock Available Restricted Availability	Mfr. Part No. 21348081481020 Mouser Part No 617-21348081481020	HARTING	Sensor Cables / Actuator Cables M8 4PIN M/F STRT 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	1Stock Available More Info Available	15,94 € 13,55 € 12,69 € 12,08 € View 11,51 € 11,01 €	Min.: 1 Mult.: 1 Restricted Availability
Ethernet Cables / Networking Cables M12-D 4PIN M/M STRT DOUBLE END 2.0M PUR 21349292477020 HARTING 1: 65,19 € 4Stock Available Restricted Availability	Mfr. Part No. 21349292477020 Mouser Part No 617-21349292477020	HARTING	Ethernet Cables / Networking Cables M12-D 4PIN M/M STRT DOUBLE END 2.0M 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	4Stock Available More Info Available	65,19 € 56,56 € 53,10 € 50,56 € 48,72 €	Min.: 1 Mult.: 1 Restricted Availability
Circular Metric Connectors M12-B 4PIN FML STRT SNGL END 0.5M RECEPT 21033386405 HARTING 1: 17,12 € 5Stock Available Restricted Availability	Mfr. Part No. 21033386405 Mouser Part No 617-21033386405	HARTING	Circular Metric Connectors M12-B 4PIN FML STRT SNGL END 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	5Stock Available More Info Available	17,12 € 15,13 € 14,33 € 13,62 € View 12,93 € 12,21 € 11,89 €	Min.: 1 Mult.: 1 Restricted Availability
Sensor Cables / Actuator Cables M8 3PIN M/F STRT DOUBLE END 1.5M PVC 21348081380015 HARTING 1: 14,16 € 2Stock Available Restricted Availability	Mfr. Part No. 21348081380015 Mouser Part No 617-21348081380015	HARTING	Sensor Cables / Actuator Cables M8 3PIN M/F STRT DOUBLE END 1.5M 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	2Stock Available More Info Available	14,16 € 12,18 € 12,00 € 11,03 € View 10,97 € 10,72 € Quote	Min.: 1 Mult.: 1 Restricted Availability
Sensor Cables / Actuator Cables M8 3PIN M/F STRT DOUBLE END 1.5M PUR 21348081388015 HARTING 1: 15,89 € 5Stock Available Restricted Availability	Mfr. Part No. 21348081388015 Mouser Part No 617-21348081388015	HARTING	Sensor Cables / Actuator Cables M8 3PIN M/F STRT DOUBLE END 1.5M 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	5Stock Available More Info Available	15,89 € 14,07 € 13,43 € 11,97 € View 11,95 € 11,57 € 11,11 € Quote	Min.: 1 Mult.: 1 Restricted Availability
Sensor Cables / Actuator Cables M8 3PIN M/F STRT DOUBLE END 2.0M PUR 21348081388020 HARTING 1: 16,28 € 7Stock Available Restricted Availability	Mfr. Part No. 21348081388020 Mouser Part No 617-21348081388020	HARTING	Sensor Cables / Actuator Cables M8 3PIN M/F STRT DOUBLE END 2.0M 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	7Stock Available More Info Available	16,28 € 14,05 € 13,44 € 12,95 € View 12,33 € 11,56 € 11,01 €	Min.: 1 Mult.: 1 Restricted Availability
Sensor Cables / Actuator Cables M8 4PIN M/F STRT DOUBLE END 1.5M PUR 21348081489015 HARTING 1: 17,72 € 1Stock Available Restricted Availability	Mfr. Part No. 21348081489015 Mouser Part No 617-21348081489015	HARTING	Sensor Cables / Actuator Cables M8 4PIN M/F STRT DOUBLE END 1.5M 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	1Stock Available More Info Available	17,72 € 15,76 € 14,96 € 14,56 € View 13,86 € 13,64 €	Min.: 1 Mult.: 1 Restricted Availability
Ethernet Cables / Networking Cables M12-A 3PIN M/F STRT DOUBLE END 1.5M PVC 21348485383015 HARTING 1: 17,24 € 2Stock Available Restricted Availability	Mfr. Part No. 21348485383015 Mouser Part No 617-21348485383015	HARTING	Ethernet Cables / Networking Cables M12-A 3PIN M/F STRT DOUBLE END 1.5M 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	2Stock Available More Info Available	17,24 € 14,50 € 13,98 € 13,68 € View 13,27 € 12,67 € 12,66 €	Min.: 1 Mult.: 1 Restricted Availability
Ethernet Cables / Networking Cables M12-A 3PIN M/F STRT DOUBLE END 1.5M PUR 21348485390015 HARTING 1: 14,78 € 2Stock Available Restricted Availability	Mfr. Part No. 21348485390015 Mouser Part No 617-21348485390015	HARTING	Ethernet Cables / Networking Cables M12-A 3PIN M/F STRT DOUBLE END 1.5M 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	2Stock Available More Info Available	14,78 € 12,91 € 12,45 € 12,19 € View 11,82 € 11,27 €	Min.: 1 Mult.: 1 Restricted Availability
Ethernet Cables / Networking Cables M12-A 3PIN M/F STRT DOUBLE END 2.0M PUR 21348485390020 HARTING 1: 15,27 € 2Stock Available Restricted Availability	Mfr. Part No. 21348485390020 Mouser Part No 617-21348485390020	HARTING	Ethernet Cables / Networking Cables M12-A 3PIN M/F STRT DOUBLE END 2.0M 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	2Stock Available More Info Available	15,27 € 13,93 € 13,50 € 13,00 € View 12,51 € 12,45 € 12,21 €	Min.: 1 Mult.: 1 Restricted Availability
Ethernet Cables / Networking Cables M12A 12PIN 12POLE DBL M/F STRT0.5M PVC 21348485C78005 HARTING 1: 44,32 € 2Stock Available Restricted Availability	Mfr. Part No. 21348485C78005 Mouser Part No 617-21348485C78005	HARTING	Ethernet Cables / Networking Cables M12A 12PIN 12POLE DBL M/F STRT0.5M 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	2Stock Available More Info Available	44,32 € 38,50 € 37,77 € 37,18 € View 35,71 € Quote	Min.: 1 Mult.: 1 Restricted Availability
Ethernet Cables / Networking Cables M12A 12PIN 12POLE DBL M/F STRT1.5M PUR 21348485C78015 HARTING 1: 48,12 € 2Stock Available Restricted Availability	Mfr. Part No. 21348485C78015 Mouser Part No 617-21348485C78015	HARTING	Ethernet Cables / Networking Cables M12A 12PIN 12POLE DBL M/F STRT1.5M 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	2Stock Available More Info Available	48,12 € 40,68 € 40,47 € 38,67 € View 36,91 € 34,98 € Quote	Min.: 1 Mult.: 1 Restricted Availability
Ethernet Cables / Networking Cables M12A 12PIN 12POLE DBL M/F STRT1.5M PVC 21348485C79015 HARTING 1: 44,99 € 1Stock Available Restricted Availability	Mfr. Part No. 21348485C79015 Mouser Part No 617-21348485C79015	HARTING	Ethernet Cables / Networking Cables M12A 12PIN 12POLE DBL M/F STRT1.5M 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	1Stock Available More Info Available	44,99 € 41,87 € 40,70 € 39,41 € View 38,46 € 37,50 € Quote	Min.: 1 Mult.: 1 Restricted Availability
Ethernet Cables / Networking Cables M12-B 4PIN M/F STRT DBL END 0.5M PVC 21348889486005 HARTING 1: 46,47 € 2Stock Available Restricted Availability	Mfr. Part No. 21348889486005 Mouser Part No 617-21348889486005	HARTING	Ethernet Cables / Networking Cables M12-B 4PIN M/F STRT DBL END 0.5M 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	2Stock Available More Info Available	46,47 € 41,17 € 40,60 € 39,82 € View Quote	Min.: 1 Mult.: 1 Restricted Availability
Sensor Cables / Actuator Cables M12-B 4PIN M/F STRT DOUBLE END 5.0M PVC 21348889486050 HARTING 1: 63,50 € 2Stock Available Restricted Availability	Mfr. Part No. 21348889486050 Mouser Part No 617-21348889486050	HARTING	Sensor Cables / Actuator Cables M12-B 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	2Stock Available More Info Available	63,50 € 58,09 € 57,35 € 56,36 € View 55,69 € Quote	Min.: 1 Mult.: 1 Restricted Availability
Ethernet Cables / Networking Cables M12-B 4PIN M/F STRT DBL END 0.5M PUR 21348889487005 HARTING 1: 50,34 € 2Stock Available Restricted Availability	Mfr. Part No. 21348889487005 Mouser Part No 617-21348889487005	HARTING	Ethernet Cables / Networking Cables M12-B 4PIN M/F STRT DBL 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	2Stock Available More Info Available	50,34 € 44,03 € 43,46 € 43,25 € Quote Quote	Min.: 1 Mult.: 1 Restricted Availability
Ethernet Cables / Networking Cables M12-B 4PIN M/F STRT DOUBLE END 1.0M PUR 21348889487010 HARTING 1: 56,36 € 5Stock Available Restricted Availability	Mfr. Part No. 21348889487010 Mouser Part No 617-21348889487010	HARTING	Ethernet Cables / Networking Cables M12-B 4PIN M/F STRT DOUBLE END 1.0M 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	5Stock Available More Info Available	56,36 € 49,70 € 49,42 € View Quote	Min.: 1 Mult.: 1 Restricted Availability
Ethernet Cables / Networking Cables M12-B 4PIN M/F STRT DBL END 2.0M PUR 21348889487020 HARTING 1: 64,55 € 5Stock Available Restricted Availability	Mfr. Part No. 21348889487020 Mouser Part No 617-21348889487020	HARTING	Ethernet Cables / Networking Cables M12-B 4PIN M/F STRT DBL END 2.0M 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	5Stock Available More Info Available	64,55 € 57,29 € 55,38 € View Quote	Min.: 1 Mult.: 1 Restricted Availability
Ethernet Cables / Networking Cables M12-D 4PIN M/M STRT DOUBLE END 0.5M PVC 21349292405005 HARTING 1: 45,69 € 5Stock Available Restricted Availability	Mfr. Part No. 21349292405005 Mouser Part No 617-21349292405005	HARTING	Ethernet Cables / Networking Cables M12-D 4PIN M/M STRT DOUBLE END 0.5M 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	5Stock Available More Info Available	45,69 € 41,15 € 40,78 € 40,11 € Quote Quote	Min.: 1 Mult.: 1 Restricted Availability
Ethernet Cables / Networking Cables 7/8" 4PIN M/F STRT DBL END 1.0M PUR 21349697496010 HARTING 1: 66,32 € 5Stock Available Restricted Availability	Mfr. Part No. 21349697496010 Mouser Part No 617-21349697496010	HARTING	Ethernet Cables / Networking Cables 7/8" 4PIN M/F STRT DBL END 1.0M 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	5Stock Available More Info Available	66,32 € 57,72 € 56,98 € 55,09 € View Quote	Min.: 1 Mult.: 1 Restricted Availability