The Lemo M Series connector is made of high-strength aluminium and incorporates a fast-locking ratchet mechanism, which enables quick and secure coupling of the connector in high vibration environments. It has two outer shell designs: arctic grip or knurled outer shell. The arctic grip makes it easy to manipulate while wearing gloves or when the connector is located in an area which is difficult to access, whilst the knurled grip option minimises the outer diameter of the plug for applications where size is critical.
Some 114 contacts are accommodated within a 34mm diameter shell. The short flange to pcb distance on pcb panel mount housings also provides the opportunity for much smaller enclosure sizes and thus savings in equipment weight and cost.
M Series connectors are tested to the MIL STD 810E gunfire test and are sealed when mated to IP68. The fluorosilicone seals are resistant to a wide range of chemicals including hydrocarbons.
There is a range of shell options (from 13mm to 34mm diameter), contact types and configurations, with multiple keys for ease of blind mating and three keyway options, one of which is reverse gender. Crimp contacts are offered as standard, except on potted panel mount connectors, with contact ratings up to 10A continuous on all contacts together. An optional special backend for over-moulding cable assembly is also offered.