M-series connectors

M8 Circular Waterproof Connectors

M8 Circular Waterproof Connectors

Outer Diameter: Approx. 8 mm
Common Pin Counts: 3, 4, 5, 8 pins
Applications: Sensors, compact devices, space-constrained areas
> Customized
> Panel mounts & overmolded cable
> Straight & right angled configuration
> Compliant with IEC standards
> IP67
  • M8 connector 1.png
  • M8 connector 2.png
  • M8 connector 4.png
  • M8 connector 5.png
  • M8 connector 6.png
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DETAIL


 
SPECIFICATIONS
Parameter Description Min Max Units
Rated Voltage 3,4 pin
5,6,8 pin
60
30
V
V
Rated Current 3,4,5 pin
6,8 pin
3
1.5
A
A
Contact Resistance 10
Insulation Resistance 500V DC 100
Mating Cycles 100 cycles
Operating Temerature -25 85
IP Level IP67
ROHS Yes
Safety Approvals IEC61076-2-104














⚖️Comparison: Pros & Cons of M8 vs. M12 Circular Waterproof Connectors
Feature M8 Waterproof Connector M12  Waterproof Connector
Compact Size ✅ Ideal for tight spaces ❌ Bulkier in size
Current/Voltage Capacity Lower (mainly for signal use) Higher, supports power and complex signals
Pin Count Options Up to approx. 8 pins Up to 17 pins, more options
Durability Moderate (for light-duty applications) High (suitable for harsh industrial environments)
IP Rating Typically IP65–IP67 Up to IP68 / IP69K (suitable for food-grade use)
Ease of Installation Small, quick-connect Larger, lockable and more stable
Cost Relatively lower Higher, but with comprehensive performance

Recommended Usage Scenarios
Application Scenario Recommended Connector
Space-constrained sensor devices ✅ M8
General I/O module connections ✅ M12
Industrial communications with multiple pins/power ✅ M12
Light-load, short-distance signal transmission ✅ M8
High durability and high pin count connections ✅ M12