The WY, WF, and WS series are metal shell connectors, they are a big family, these three series have the same insert, same contacts, and same electric spec, just different shell and different IP rating.
WY series is an IP55-67 waterproof connector, bayonet coupling, it is a very strong connector, designed for indoor 1 outdoor, cold or hot, shaking, vibrating hush conditions, the bayonet coupling features quick locking and anti-vibration, it is the high-end connector compare to WF and WS.
The connectors can be used for both cables to cable (in-line) or cable to panel-mount connections. Each side can be male or female contact, (Plug or socket versions), the IP67 sealing caps are available on the panel connector.
1) shell diameter (the panel hole cutout size) : from 16mm to 55mm .
2) number of contacts : 2pin to 61pin
3) rated current: 5A-200A
4) IP rating : IP55-IP67
5) CE , ROHS approval