1US is a round cap that with a sealing 1UW can provide IP 67 sealing from front panel.
Standard colours:
1US solid colours: blue, grey, red and black
1US transparent colours: frosted white
1UW colour: black
Temperature range:
Solid cap: -40/+65oC
Transparent cap: -40/+85oC
Sealing material: silicone
The cap 1US with the sealing 1UW is mounted on Multimec 5G series switches.
See more information in the brochure.