OTIS SH1 SH2 SH3 AA1 Key Switch

Otis elevator key swith ,SH 1,SH 2, SH3, AA1,DAA431B4 DAA431E2 GEN-II (GEN2),TAA431K2 FAA431R1 FAA194F2 Lift Power Supply Key Lock Switch, aa1: self reset switch