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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 (USD) 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: $43.41 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	Datasheet	10On Order	$43.41 $37.94 $35.56 $33.87 View $32.25 $30.23	Min.: 1 Mult.: 1
Sensor Cables / Actuator Cables M12A 12PIN 12POLE MALE RA 1.0M PVC 21348600C79010 HARTING 1: $39.32 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	Datasheet	10Expected 10/11/2026	$39.32 $33.88 $31.76 $30.25 View $28.80 $27.00	Min.: 1 Mult.: 1
Sensor Cables / Actuator Cables M12A 12PIN 12POLE DBL M/F RA 10.0M PUR 21348687C78100 HARTING 1: $89.09 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	Datasheet	10Expected 16/11/2026	$89.09 $80.69 $75.90 $75.18 View $72.08 Quote	Min.: 1 Mult.: 1
Ethernet Cables / Networking Cables M12-D 4PIN M/M STRT DOUBLE END 2.0M PVC 21349292405020 HARTING 1: $69.01 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	Datasheet	4On Order	$69.01 $58.66 $54.99 $52.37 $49.87	Min.: 1 Mult.: 1
Ethernet Cables / Networking Cables M12-D 4PIN M/F STRT DBL END 5.0M PUR 21349293477050 HARTING 1: $110.15 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	Datasheet	2Expected 17/11/2026	$110.15 $93.63 $87.77 $83.58 $80.03	Min.: 1 Mult.: 1
Sensor Cables / Actuator Cables M8 4PIN M/F STRT DOUBLE END 2.0M PVC 21348081481020 HARTING 1: $18.53 1Stock Available	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	Datasheet	1Stock Available More Info Available	$18.53 $15.75 $14.76 $14.05 View $13.38 $12.54 $11.95	Min.: 1 Mult.: 1
Ethernet Cables / Networking Cables M12-D 4PIN M/M STRT DOUBLE END 2.0M PUR 21349292477020 HARTING 1: $75.80 5Stock Available	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	Datasheet	5Stock Available More Info Available	$75.80 $65.77 $61.74 $58.79 $55.99	Min.: 1 Mult.: 1
Circular Metric Connectors M12-B 4PIN FML STRT SNGL END 0.5M RECEPT 21033386405 HARTING 1: $19.91 5Stock Available	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	Datasheet	5Stock Available More Info Available	$19.91 $17.59 $16.66 $15.84 View $15.04 $14.20 $13.83 Quote	Min.: 1 Mult.: 1
Sensor Cables / Actuator Cables M8 3PIN M/F STRT DOUBLE END 1.5M PVC 21348081380015 HARTING 1: $16.46 2Stock Available	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	Datasheet	2Stock Available More Info Available	$16.46 $14.16 $13.95 $12.82 View $12.76 Quote	Min.: 1 Mult.: 1
Sensor Cables / Actuator Cables M8 3PIN M/F STRT DOUBLE END 1.5M PUR 21348081388015 HARTING 1: $18.48 5Stock Available	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	Datasheet	5Stock Available More Info Available	$18.48 $16.36 $15.62 $13.92 View $13.89 $13.45 Quote	Min.: 1 Mult.: 1
Sensor Cables / Actuator Cables M8 3PIN M/F STRT DOUBLE END 2.0M PUR 21348081388020 HARTING 1: $18.93 7Stock Available	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	Datasheet	7Stock Available More Info Available	$18.93 $16.34 $15.63 $15.06 View $14.34 $13.44 $12.80	Min.: 1 Mult.: 1
Sensor Cables / Actuator Cables M8 4PIN M/F STRT DOUBLE END 1.5M PUR 21348081489015 HARTING 1: $20.61 1Stock Available	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	Datasheet	1Stock Available More Info Available	$20.61 $18.33 $17.40 $16.93 View $16.12 $15.86	Min.: 1 Mult.: 1
Ethernet Cables / Networking Cables M12-A 3PIN M/F STRT DOUBLE END 1.5M PVC 21348485383015 HARTING 1: $20.05 2Stock Available	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	Datasheet	2Stock Available More Info Available	$20.05 $16.86 $16.26 $15.91 View $15.43 $14.73 $14.72	Min.: 1 Mult.: 1
Ethernet Cables / Networking Cables M12-A 3PIN M/F STRT DOUBLE END 1.5M PUR 21348485390015 HARTING 1: $17.19 2Stock Available	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	Datasheet	2Stock Available More Info Available	$17.19 $15.01 $14.48 $14.17 View $13.74 $13.11	Min.: 1 Mult.: 1
Ethernet Cables / Networking Cables M12-A 3PIN M/F STRT DOUBLE END 2.0M PUR 21348485390020 HARTING 1: $17.76 2Stock Available	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	Datasheet	2Stock Available More Info Available	$17.76 $16.20 $15.70 $15.12 View $14.55 $14.48 $14.20	Min.: 1 Mult.: 1
Ethernet Cables / Networking Cables M12A 12PIN 12POLE DBL M/F STRT0.5M PVC 21348485C78005 HARTING 1: $51.54 2Stock Available	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	Datasheet	2Stock Available More Info Available	$51.54 $44.77 $43.92 $43.23 View $41.52 Quote	Min.: 1 Mult.: 1
Ethernet Cables / Networking Cables M12A 12PIN 12POLE DBL M/F STRT1.5M PUR 21348485C78015 HARTING 1: $55.95 2Stock Available	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	Datasheet	2Stock Available More Info Available	$55.95 $47.30 $47.06 $44.96 View $42.92 $40.68 Quote	Min.: 1 Mult.: 1
Ethernet Cables / Networking Cables M12A 12PIN 12POLE DBL M/F STRT1.5M PVC 21348485C79015 HARTING 1: $52.31 1Stock Available	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	Datasheet	1Stock Available More Info Available	$52.31 $48.69 $47.32 $45.83 View $44.72 $43.61 Quote	Min.: 1 Mult.: 1
Ethernet Cables / Networking Cables M12-B 4PIN M/F STRT DBL END 0.5M PVC 21348889486005 HARTING 1: $54.04 2Stock Available	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	Datasheet	2Stock Available More Info Available	$54.04 $47.87 $47.21 $46.30 View Quote	Min.: 1 Mult.: 1
Sensor Cables / Actuator Cables M12-B 4PIN M/F STRT DOUBLE END 5.0M PVC 21348889486050 HARTING 1: $73.84 2Stock Available	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	Datasheet	2Stock Available More Info Available	$73.84 $67.55 $66.69 $65.54 View $64.76 Quote	Min.: 1 Mult.: 1
Ethernet Cables / Networking Cables M12-B 4PIN M/F STRT DBL END 0.5M PUR 21348889487005 HARTING 1: $58.54 2Stock Available	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	Datasheet	2Stock Available More Info Available	$58.54 $51.20 $50.53 View Quote	Min.: 1 Mult.: 1
Ethernet Cables / Networking Cables M12-B 4PIN M/F STRT DOUBLE END 1.0M PUR 21348889487010 HARTING 1: $65.54 5Stock Available	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	Datasheet	5Stock Available More Info Available	$65.54 $57.79 $57.47 View Quote	Min.: 1 Mult.: 1
Ethernet Cables / Networking Cables M12-B 4PIN M/F STRT DBL END 2.0M PUR 21348889487020 HARTING 1: $75.06 5Stock Available	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	Datasheet	5Stock Available More Info Available	$75.06 $66.62 $64.40 View Quote	Min.: 1 Mult.: 1
Ethernet Cables / Networking Cables M12-D 4PIN M/M STRT DOUBLE END 0.5M PVC 21349292405005 HARTING 1: $53.13 5Stock Available	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	Datasheet	5Stock Available More Info Available	$53.13 $47.85 $47.42 $46.64 View Quote	Min.: 1 Mult.: 1
Ethernet Cables / Networking Cables 7/8" 4PIN M/F STRT DBL END 1.0M PUR 21349697496010 HARTING 1: $77.12 5Stock Available	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	Datasheet	5Stock Available More Info Available	$77.12 $67.12 $66.26 $64.06 View Quote	Min.: 1 Mult.: 1