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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.
Circular Metric Connectors M12-A 8PIN FML STRT 0.5M RECEPT 21033176805 HARTING 1: $27.90 132In Stock	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	Datasheet	132In Stock	$27.90 $23.72 $22.24 $21.17 View $20.15 $18.89 $17.99	Min.: 1 Mult.: 1
Sensor Cables / Actuator Cables M8 4PIN MALE STRT SINGLE END 1.0M PVC 21348000481010 HARTING 1: $14.35 429In Stock	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	Datasheet	429In Stock	$14.35 $11.82 $11.30 $10.90 View $10.27 $9.56 $9.00 $8.57	Min.: 1 Mult.: 1
Sensor Cables / Actuator Cables M12-A 8PIN MALE STRT SINGLE END 1.0M PVC 21348400882010 HARTING 1: $20.65 145In Stock	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	Datasheet	145In Stock	$20.65 $18.02 $17.16 $16.04 View $15.89 $14.33 $13.90	Min.: 1 Mult.: 1
Sensor Cables / Actuator Cables M12-A 8PIN MALE STRT SINGLE END 5.0M PVC 21348400882050 HARTING 1: $32.04 103In Stock	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	Datasheet	103In Stock	$32.04 $27.83 $26.09 $24.84 View $24.40 $22.18 $22.17 Quote	Min.: 1 Mult.: 1
Sensor Cables / Actuator Cables M12A 12PIN 12POLE MALE STRT 1.0M PVC 21348400C79010 HARTING 1: $32.82 204In Stock 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	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	$32.82 $27.89 $26.15 $24.90 View $23.71 $22.23	Min.: 1 Mult.: 1
Sensor Cables / Actuator Cables M12A 12PIN 12POLE MALE STRT 5.0M PVC 21348400C79050 HARTING 1: $46.36 146In Stock 997On 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	Datasheet	146In Stock 997On Order On Order Ship Dates Mfr. No: 21348400C79050 Stock: 146 Can Dispatch Immediately On Order: 271 Expected 03/11/2026 726 TBD Factory Lead Time: 6 Weeks	$46.36 $40.53 $36.07 $34.35 View $33.06 Quote	Min.: 1 Mult.: 1
Sensor Cables / Actuator Cables M12A 12PIN 12POLE DBL M/F STRT5.0M PVC 21348485C79050 HARTING 1: $57.98 109In Stock 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	Datasheet	109In Stock 210On Order On Order Ship Dates Mfr. No: 21348485C79050 Stock: 109 Can Dispatch Immediately On Order: 101 Expected 10/11/2026 109 TBD Factory Lead Time: 6 Weeks	$57.98 $49.29 $46.21 $44.00 View $41.90 $39.68 Quote	Min.: 1 Mult.: 1
Sensor Cables / Actuator Cables M12-A 8PIN FML STRT SINGLE END 1.0M PVC 21348500882010 HARTING 1: $20.36 260In Stock	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	Datasheet	260In Stock	$20.36 $17.30 $16.21 $15.44 View $14.70 $13.78 $13.12	Min.: 1 Mult.: 1
Sensor Cables / Actuator Cables M12-A 8PIN FML STRT SINGLE END 5.0M PVC 21348500882050 HARTING 1: $31.67 234In Stock	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	Datasheet	234In Stock	$31.67 $29.18 $25.90 $24.56 View $22.61 $22.46 Quote	Min.: 1 Mult.: 1
Sensor Cables / Actuator Cables M8 3PIN M/F STRT DOUBLE END 10.0M PUR 21348081388100 HARTING 1: $33.84 67In Stock 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	Datasheet	67In Stock 100On Order	$33.84 $28.76 $26.67 $24.45 $22.92	Min.: 1 Mult.: 1
Sensor Cables / Actuator Cables M12-A 8PIN M/F ST DOUBLE END 1.0M PVC 21348485882010 HARTING 1: $27.29 177In Stock 122Expected 02/11/2026	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	Datasheet	177In Stock 122Expected 02/11/2026	$27.29 $23.20 $21.75 $20.71 View $19.72 $18.48 $17.60	Min.: 1 Mult.: 1
Ethernet Cables / Networking Cables M12-A 8PIN M/F ST DOUBLE END 2.0M PVC 21348485882020 HARTING 1: $29.19 115In Stock 60Expected 10/11/2026	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	Datasheet	115In Stock 60Expected 10/11/2026	$29.19 $24.80 $23.25 $22.14 View $21.08 $19.77 $18.82	Min.: 1 Mult.: 1
Sensor Cables / Actuator Cables M12-A 8PIN M/F ST DOUBLE END 5.0M PVC 21348485882050 HARTING 1: $34.96 370In Stock	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	Datasheet	370In Stock	$34.96 $29.72 $27.86 $27.85 View $27.12 Quote	Min.: 1 Mult.: 1
Sensor Cables / Actuator Cables M12A 12PIN 12POLE DBL M/F STR10.0M PVC 21348485C79100 HARTING 1: $74.78 160In Stock	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	Datasheet	160In Stock	$74.78 $63.56 $60.68 Quote Quote	Min.: 1 Mult.: 1
Sensor Cables / Actuator Cables M8 3PIN FEMALE STRT SINGL END 0.5mRECEPT 21023576305 HARTING 1: $14.34 80In Stock	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	Datasheet	80In Stock	$14.34 $12.76 $11.96 $10.84 View $10.16 $9.68 $9.22	Min.: 1 Mult.: 1
Circular Metric Connectors M8 4PIN FEMALE STRT SINGL END 0.5mRECEPT 21023576405 HARTING 1: $16.32 50In Stock 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	Datasheet	50In Stock 27Expected 09/11/2026	$16.32 $14.69 $14.40 $14.19 View $12.24 $11.48 $10.93	Min.: 1 Mult.: 1
Circular Metric Connectors M12-A 4PIN FML STRT 0.5M RECEPT 21033176405 HARTING 1: $16.39 70In Stock 166Expected 27/10/2026	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	Datasheet	70In Stock 166Expected 27/10/2026	$16.39 $14.20 $13.46 $12.09 View $10.75 $10.07 $9.59 $9.19	Min.: 1 Mult.: 1
Circular Metric Connectors M12-A 12POLE RECEPT FML STRT SNG END .5M 21033532C00 HARTING 1: $36.22 27In Stock	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	Datasheet	27In Stock	$36.22 $34.94 $28.77 $27.40 Quote Quote	Min.: 1 Mult.: 1
Circular Metric Connectors M12-D 4PIN RCPT 0.5M FML STRT SNGL END 21033752400 HARTING 1: $18.43 3In Stock	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	Datasheet	3In Stock	$18.43 $16.52 $15.49 $14.75 View $14.03 $13.16 $12.53	Min.: 1 Mult.: 1
Standard Circular Connector 7/8" 4PIN FML STRT RECEPTACLE 21043162501 HARTING 1: $36.50 3In Stock	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	Datasheet	3In Stock	$36.50 $31.02 $29.08 $27.69 View $26.37 $24.72	Min.: 1 Mult.: 1
Sensor Cables / Actuator Cables M8 3PIN MALE STRT SINGLE END 5.0m PVC 21348000380050 HARTING 1: $17.76 18In Stock	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	Datasheet	18In Stock	$17.76 $17.13 $14.14 $13.47 View $12.83 $12.02 $11.45	Min.: 1 Mult.: 1
Sensor Cables / Actuator Cables M8 4PIN M/F STRT DOUBLE END 1.0M PVC 21348081481010 HARTING 1: $16.90 66In Stock 55Expected 27/10/2026	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	Datasheet	66In Stock 55Expected 27/10/2026	$16.90 $15.72 $14.87 $14.02 View $12.57 $12.16 $11.71 $11.62 Quote	Min.: 1 Mult.: 1
Sensor Cables / Actuator Cables M8 4PIN M/F STRT DOUBLE END 5.0M PVC 21348081481050 HARTING 1: $24.43 29In Stock 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	Datasheet	29In Stock 33On Order	$24.43 $21.56 $20.21 $16.21 Quote Quote	Min.: 1 Mult.: 1
Sensor Cables / Actuator Cables M8 4PIN M/F STRT DOUBLE END 0.5M PUR 21348081489005 HARTING 1: $19.83 1In Stock	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	Datasheet	1In Stock	$19.83 $16.86 $15.80 $15.05 View $14.33 $13.43 $12.79	Min.: 1 Mult.: 1
Sensor Cables / Actuator Cables M8 4PIN M/F STRT DOUBLE END 1.0M PUR 21348081489010 HARTING 1: $17.41 83In Stock	Mfr. Part No. 21348081489010 Mouser Part No 617-21348081489010	HARTING	Sensor Cables / Actuator Cables M8 4PIN M/F STRT DOUBLE END 1.0M PUR Learn More about HARTING m8 m12 78 connectors	Datasheet	83In Stock	$17.41 $14.79 $14.20 $13.20 View $12.57 $12.32 $11.85	Min.: 1 Mult.: 1