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Core Differences Between M8, M9 and M12 Series Connectors

Difference Core Dimension

  • Size & Bearing Capacity & Application Scenario : The essential differences of the three series of circular connectors focus on thread size, power/signal bearing capacity, and the matching degree with different industrial application scenarios, with a clear gradient of performance and application.

Parameter Comparison & Scenario Adaptation Table

Model Thread Specification Common Core Count Rated Current/Voltage Core Advantages Applicable Scenario
M8 8mm 3/4/6/8 PIN 1-3A/30-60V Smallest volume, suitable for micro equipment Micro sensors, small current actuators, precision vision modules
M9 9mm 2/3/4/5/6/7/8 PIN 2-5A/60-125V Moderate size, balance of compactness and bearing Mid-range sensors, small motors, warehousing logistics sensing nodes
M12 12mm 2-17 PIN 4-10A/60-250V Strong bearing capacity, most complete specifications Industrial bus, high-power sensors, field bus equipment

Technical Note: The three series of connectors form a complete product matrix for industrial circular connectors, covering from micro small-power to high-power heavy-duty application scenarios; the selection is mainly based on the actual installation space, power/signal transmission requirements and system bus specifications, and it is recommended to unify the model specification in the same system for standardized management.