... . Model 1.Only land caput pushbutton,opistho-model is color, Example:SB2-BA_ , _ enter figure:1-white,2-black,3 ... -red,5-yellow,6-blue. 2.Ony land cantact pedestal,Example:SB2-BZ10_ , _ enter figure: 1-one NO, 2-one ... , 4-two NC, 5- NO+NC3. Only land contact-replacement: Example:SB2-BE10_, _ enter figure:1-NO, 2-NC2. ApplicationUsed ...