The Rittal SZ pressure relief stopper with integral sealing membrane, especially for enclosures which are exposed to changing climatic conditions, pressure differences may cause condensation to form in sealed enclosures. The integral sealing membrane in the pressure relief stopper largely prevents such pressure differences and hence eliminates condensation, additionally, it also prevents the ingress of moisture from the outside. Installed in vertical surfaces to protect against dirt.

Air permeability up to 120 litres/hour with a pressure difference of 70 mbar
Connection thread M12 x 1.5
For fitting in material thicknesses up to 4 mm
Protection category IP to IEC 60 529 IP 68, IP X8
Protection category IP to DIN 40 050-9 IP 69K