These accessories are mechanical interlock for TeSys Deca Advanced contactors 3 poles 115A to 150A and 4 poles 200A within identical frame. They are designed to be used for Star delta assembling without electrical interlocking. They operate within a temperature range of -40C to 70C and can be used at altitudes of up to 3000m without derating. Unique QR code provides quick access to complete product data.