DW931 series marine frame circuit breaker (hereinafter referred to as circuit breaker) is suitable for AC 50HZ or 60HZ, rated power supply 690V and below in ship power system, used for power generation protection, power distribution, power equipment and line overload, short circuit and owed Voltage protection and infrequent switching on and off of the circuit under normal operating conditions. The circuit breaker has an isolation function. The circuit breaker does not have an overcurrent release and can be used as a load switch.
The circuit breaker complies with IEC60947-2 2006/GB14048.2 2008, IEC60947-4 2009/GB14048.4 2010, GB/T3783-2008, CCS Rules for Classification of Sea-Going Steel Ships (2015).
The product has passed the type approval of China Classification Society, and the type approval certificate: NJ16T00113. This series of circuit breakers is recognized as a high-tech product of Jiangsu Province, product number: 120581G0820N.