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Reliable M8/M12 Connectivity
Rugged cable assemblies from HARTING provide secure signal, data, and power in industrial environments
HARTING M8 and M12 cable assemblies deliver dependable, industry-standard connectivity for sensors, actuators, Ethernet networks, and power distribution in demanding industrial environments. Built around HARTING proven circular connector technology, these assemblies combine robust overmolded terminations with high-quality industrial cabling to ensure long service life, secure mating, and consistent electrical performance.
Designed for plug-and-play installation, M8 and M12 assemblies reduce wiring time, eliminate termination errors, and provide IP65/IP67 protection right out of the box. Whether an application needs compact M8 sensor leads for tight space automation or high-speed M12 Ethernet and power assemblies for machine networks, HARTING offers a complete portfolio engineered for harsh environment reliability.
M8 Cable Assembly Features
- Compact overmolded design: ideal for miniature sensors and tight routing
- Lightweight cable builds: reduces strain on small devices and moving axes
- Signal/Ethernet support: A-coded and D-coded variants, T1 (single-pair Ethernet), T1 hybrid (four pins; two for SPE and two for power)
- 2- to 8-pole configurations: for flexible sensor/actuator wiring
- Screw-locking for fast, secure field installation
M12 Cable Assembly Features
- High-speed Ethernet options: D-coded (fast Ethernet) and X-coded (Cat6A)
- T1 (single-pair Ethernet)
- Power-rated assemblies: L/S/K/T-coded up to 16 A/630 V
- Hybrid data + power: Y-coded 4+4 pole solutions
- 2- to 12-pole configurations: broad compatibility across devices
- Custom configurable builds: tailored lengths, codings, and cable types
Shared M8/M12 Cable Assembly Features
- IP65/IP67 sealing: fully sealed overmolded heads for harsh environments
- Straight or angled molded heads: flexible routing in tight spaces
- Shielded and unshielded options: for noise-sensitive or standard applications
- Industrial-grade cable jackets: PVC, PUR, and halogen-free variants
- Vibration-resistant strain relief: protects cable integrity in motion systems
- Ready-to-install assemblies: reduce wiring time and eliminate termination errors
M8 Cable Assembly Applications
- Miniature sensors: proximity, optical, and compact sensing
- Small actuators: pneumatic valves and micro drives
- Compact I/O modules: distributed field-level wiring
- Tight space automation: dense machine layouts
- Lightweight robotic tooling: end effectors and small moving axes
M12 Cable Assembly Applications
- Industrial Ethernet: D-coded and X-coded networking
- Machine vision: high-speed camera and imaging systems
- Power distribution: motors, drives, and compact power feeds
- Hybrid devices: combined data + power over one cable
- Industrial switches and routers: ruggedized Ethernet ports
Shared M8/M12 Cable Assembly Applications
- Industrial automation: sensors, actuators, and control wiring
- Robotics: vibration-resistant cabling for moving equipment
- Packaging machinery: repetitive motion equipment
- Process automation: field-level wiring for valves and instrumentation
- Transportation systems: rugged IP-rated cable runs
- Security and surveillance: reliable signal/data cabling
- Harsh environment electronics: dust, moisture, and vibration exposure
M8 and M12 Comparison
M8 Assemblies
| Image | Manufacturer Part Number | Description | Available Quantity | Price | View Details | |
|---|---|---|---|---|---|---|
 |  | 21348081489010 | CIRC CBL 4POS RCPT TO PLUG 3.28' | 598 - Immediate | $17.41 | View Details |
|  | 21348081380005 | CIRC CBL 3POS RCPT TO PLUG 1.64' | 0 - Immediate | $14.20 | View Details |
|  | 21348081380010 | CIRC CBL 3POS RCPT TO PLUG 3.28' | 0 - Immediate | $14.50 | View Details |
|  | 21348081481010 | CIRC CBL 4POS RCPT TO PLUG 3.28' | 231 - Immediate | $16.39 | View Details |
|  | 21348081380020 | CIRC CBL 3POS RCPT TO PLUG 6.56' | 0 - Immediate | $15.22 | View Details |
|  | 21348081388010 | CIRC CBL 3POS RCPT TO PLUG 3.28' | 131 - Immediate | $15.38 | View Details |
| | 21348081481020 | CIRC CBL 4POS RCPT TO PLUG 6.56' | 2 - Immediate | $19.90 | View Details |
|  | 21348081481050 | CIRC CBL 4POS RCPT TO PLUG 16.4' | 103 - Immediate | $21.15 | View Details |
M12 Assemblies
| Image | Manufacturer Part Number | Description | Available Quantity | Price | View Details | |
|---|---|---|---|---|---|---|
|  | 21348100489035 | M8 A-CODE SINGLE ENDED OVERMOLDE | 0 - Immediate | $17.29 | View Details |
|  | 21348184489010 | CIRC CBL 4POS RCPT TO PLUG 3.28' | 0 - Immediate | $20.96 | View Details |
|  | 21349292405045 | CIR CBL 4POS RCPT TO RCPT 14.76' | 0 - Immediate | $74.78 | View Details |
|  | 21349292477045 | CIR CBL 4POS RCPT TO RCPT 14.76' | 0 - Immediate | $93.25 | View Details |
| | 21349292477068 | CIRC CBL 4POS RCPT TO RCPT 22.3' | 0 - Immediate | $115.39 | View Details |
Circular Connector Accessories
| Image | Manufacturer Part Number | Description | Available Quantity | Price | View Details | |
|---|---|---|---|---|---|---|
|  | 21010000003 | CONN SEALING COVER M12 BLACK | 2823 - Immediate | $2.94 | View Details |
|  | 21410000002 | CONN COVER M12 BLACK | 158 - Immediate | $8.16 | View Details |
|  | 21010000038 | CONN PROTECTIVE COVER M12 SILVER | 281 - Immediate | $11.22 | View Details |
|  | 21410000001 | CONN COVER M12 BLACK | 622 - Immediate | $8.76 | View Details |
|  | 21010000033 | CONN PROTECTIVE COVER M12 SILVER | 111 - Immediate | $20.70 | View Details |
|  | 21010102003 | CONN WIRE SEAL M12 BLACK | 99 - Immediate | $4.31 | View Details |
|  | 21033392000 | T1-M12 RECEPTACLE BACK MOUNTING | 5 - Immediate | $12.25 | View Details |
|  | 21033012011 | M12-ACC-HOUSING PP INVERSE FEMAL | 48 - Immediate | $12.38 | View Details |
M12 Power Assemblies
| Image | Manufacturer Part Number | Description | Available Quantity | Price | View Details | |
|---|---|---|---|---|---|---|
|  | 21035992515 | CIRC CBL 4POS PLUG TO WIRE 0.98' | 6 - Immediate | $44.28 | View Details |
|  | 21349700394050 | CIRC CBL 3POS PLUG TO WIRE 16.4' | 10 - Immediate | $69.71 | View Details |
|  | 21035962515 | CIRC CBL 4POS PLUG TO WIRE 0.98' | 34 - Immediate | $42.79 | View Details |
|  | 21035961515 | CIRC CBL 4POS RCPT TO WIRE 0.98' | 0 - Immediate | $42.46 | View Details |
|  | 21035991515 | CIRC CBL 4POS RCPT TO WIRE 0.98' | 0 - Immediate | $42.60 | View Details |
|  | 21349700496015 | CIRC CBL 4POS PLUG TO WIRE 4.92' | 0 - Immediate | $46.57 | View Details |
|  | 21349697496010 | CIRC CBL 4POS RCPT TO PLUG 3.28' | 0 - Immediate | $68.93 | View Details |
|  | 21349700393100 | CIRC CBL 3POS PLUG TO WIRE 32.8' | 0 - Immediate | $71.58 | View Details |
| | 21349697496020 | CIRC CBL 4POS RCPT TO PLUG 6.56' | 0 - Immediate | $74.98 | View Details |
|  | 21349899495006 | CBL 4POS RCPT RA TO PLUG 1.97' | 0 - Immediate | $66.97 | View Details |
Updated: 2026-09-10
Published: 2015-06-29
