型号及含义
Type and specification

产品概述
Product Description
   DAB7-4 0系列小型断路器采用1P+N的双断点，两极绝缘且隔开，在同步操作下.N极始终保持先接通，后分断，从而保证了保护极分断电弧的能力， 又有效地保护被控制线路和电气设备的安全。
   DAB7 -40 series miniature circuit breaker adop ts double- break point 011 P+N. the two poles are insulated and isolated Iromeach other. under synchronous operation. N- pole always will make lirst and break later. which guarantees e lectric arc breaking capacity 01 protected pole.also ensures salety 01 controlled circu its and electric equipment。