LY: LY1: Size: 20.5*27*33.4mm Terminal layout: 1Z,1H Contact capacity: 16A 220VAC,16A 28VDC Contact resistance:<=50mohm Insulation resistance:>=100Mohm Dielectric strength: BOC 1000VAC, BCC 1500VAC LY2: Size: 20.5*27*33.4mm Terminal layout: 2Z,2H Contact capacity: 10A 220VAC,10A 28VDC Contact resistance:<=50mohm Insulation resistance:>=100Mohm Dielectric strength: BOC 1000VAC, BCC 1500VAC LY3: Size: 31*27.2*35.4mm Terminal layout: 3Z Contact capacity: 16A 220VAC,16A 28VDC Contact resistance:<=50mohm Insulation resistance:>=100Mohm Dielectric strength: BOC 1000VAC, BCC 1500VAC LY4: Size: 41*27.4*34.9mm Terminal layout: 4Z Contact capacity: 16A 220VAC,16A 28VDC Contact resistance:<=50mohm Insulation resistance:>=100Mohm Dielectric strength: BOC 1000VAC, BCC 1500VAC MY: MY2: Size: 20.5*27*33.4mm Terminal layout: 2Z Contact capacity: 5A 220VAC,5A 28VDC Contact resistance:<=50mohm Insulation resistance:>=100Mohm Dielectric strength: BOC 1000VAC, BCC 1500VAC MY3: Size: 20.5*27*33.4mm Terminal layout: 3Z Contact capacity: 3A 220VAC,3A 28VDC Contact resistance:<=50mohm Insulation resistance:>=100Mohm Dielectric strength: BOC 1000VAC, BCC 1500VAC MY4: Size: 20.5*27*33.4mm Terminal layout: 4Z Contact capacity: 3A 220VAC,3A 28VDC Contact resistance:<=50mohm Insulation resistance:>=100Mohm Dielectric strength: BOC 1000VAC, BCC 1500VAC