... Voltage:400V,500V,690V,800V.. YKM1 series of molded case circuit breaker (short for circuit breaker), is the latest circuit breaker of advanced technology. The insulation ... 40,5063,80,100AC690VAC800V3522150926830129Φ4.5YKM1-100M503515092/12286YKM1-100H8550YKM1-160L160100,125,140,160AC690VAC800V35221651078635126Φ4.5YKM1-160M5035165107/142103YKM1-160H8550 YKM1 series of molded case circuit breaker