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EM40M Series



EM40M Series, High Current, 450A (Max) Waterproof, Industrial Push-On Bayonet Lock Connector 



With the use of high-quality plastic material, the circular connector EM40M offers resistance to rough handling, for high current applications.  In addition, the multi-point contact spring component helps reduce contact resistance and promotes a high current flow.


The connector series offers two options of non-waterproof or waterproof versions, the latter achieved with the IP67 specification, which provides superior levels of dustproof and waterproof protection due to the built-in O-ring capable of withstanding liquid intrusion. 


The EM40M series combines a simple push-on mating process with a bayonet un-mating mechanism.  The connector is designed to lock simply by pushing the plug until the user hears an audible click, which is marked with triangles, making it easier for the user to visually line up the plug for blind mating. To un-mate the connector, the user simply twists the sleeve of the plug and pulls. 


A further benefit is that commercial tools are available to be used for this series. Termination of the crimp contact is quick and easy using standard JIS crimping tools. A contact removal tool is available to swiftly remove the contact from the housing.


In this way, the connector benefits from a bayonet locking system - electromechanical security, vibration resistance and positive sealing - whilst providing the simple operation of a push-on design. 


Key Features


  • Number of contacts: 1
  • Shell size: 40mm
  • Current rating: 410A (max)/ 450A (max) Non-waterproof
  • Shell construction: Plastic
  • Voltage rating: AC/DC 1000V (max)
  • Finger protect structure
  • Waterproof available


To discover more about the EM40M Series click here.