Waterproof Male Female Connector M8 3pin 2pin 5pin 4pin 6pin IP65 Waterproof Connector Extension Cable
Product Overview
The M8 Waterproof Male-Female Connector is the micro-size workhorse of industrial circular interconnects, built on an M8×1.0 threaded coupling and standardized under IEC 61076-2-104. A "male-female set" means one male plug (pins) terminates the cable coming from the source (sensor/controller), and one female receptacle/socket mounts on the device or panel. When mated, the pair provides a sealed, keyed, vibration-proof link for 24 VDC sensors, IO-Link, photoelectric switches, valve coils, and D-coded 100 Mbps industrial Ethernet.
Key Benefits
- 8 mm max OD – fits where M12 can't: Perfect for miniature photoelectric heads, robot finger tools, and dense sensor banks
- IP67 mated / IP68 optional – Blocks dust, oil mist, coolant, and survives 1m/30min immersion
- Complete sealed link – Male plug + female socket provides keyed connection preventing mis-mating
- Gold-plated contacts – ≤5 mΩ resistance, ≥500 mating cycles, -25…80°C operating range
- Field-wireable OR molded – Flexible installation options for on-site customization
- 33% smaller than M12 – Lower BOM cost with same reliability for high-density applications
Technical Specifications
| Parameter |
Specification |
| Standard |
IEC 61076-2-104 |
| Coupling |
M8 × 1.0 threaded |
| Pins / Coding |
3/4/5/6/8; A / B / D |
| Rated Current |
3 A (3/4-pin A), 3 A (5-pin B), 1 A (6/8-pin) |
| Rated Voltage |
60 V DC (3-pin A), 30 V (4/5-pin), 30 V (D-code Eth) |
| Contact Resistance |
≤ 5 mΩ |
| Protection Rating |
IP67 mated (IP68/IP69K optional) |
| Wire Gauge |
0.14-0.34 mm² (26-22 AWG) |
| Operating Temperature |
-25…80°C dynamic / -40…105°C static |
| Mating Cycles |
≥ 500 |
| Certifications |
CE, RoHS, REACH |
Competitive Advantages
- vs M12: 33% smaller OD, lower cost, sufficient for 24 VDC sensor applications
- vs JST/PH headers: Threaded M8 lock + O-ring provides IP67 rating and vibration resistance
- vs heat-shrink splices: Coded keying prevents miswiring, reusable with 500-cycle rating
- vs pre-molded only: Field-wireable option allows exact length customization on-site
Applications
- Factory automation: proximity/photoelectric sensors, inductive probes, pressure transmitters
- Industrial Ethernet edges: D-code 4-pin 100 Mbps PROFINET/EtherNet/IP
- Robotics & AGV: robot wrist/finger sensors, cobot end-effector signals
- Outdoor & transport: streetlight controllers, solar combiners, railway telemetry
- Packaging & labeling: conveyor photoeyes, label printer sensor taps
- Medical & instruments: diagnostic probes, lab automation, battery status lines