...tection or use a Limit Switch. IP67 (except terminal sections) O (except terminal sections) Δ V D3V-01 VX D2RV D2MC D3M SS SS-P Sealing Relays O IP40 × D2A D3C D2X D3D Environmental resistanc...https://www.ia.omron.com/data_pdf/guide/29/microswitch_tg_e_3_4.pdf