功能:Mainly connected with cable, control the two-way transmission between car platform sill signal and elevator main control system, for maintainer to do maintenance on the car roof.
功能:Electrical safety component is applied in elevator maintenance operation or emergency electric operation, placed on car roof or machine room, and met the requirements of national standard.
功能:Electrical safety component is applied in elevator maintenance operation or emergency electric operation, placed on car roof or machine room, and met the requirements of national standard.
功能:Electrical safety component is applied in elevator maintenance operation or emergency electric operation, placed on car roof or machine room, and met the requirements of national standard.