Thermal-magnetic circuit breaker RDCM1(CM1) series

voltageunder-voltageAC

Application RDCM1(CM1) series MCCB is mainly used in the circuit of AC 50/60Hz, rated insulating voltage 690V (630 type is 500V), rated working voltage up to 690V, and rated current from 6A-800A in distribution line for distributing power, protecting line, overload, short-circuit and under-voltage protection. It also can be used for infrequently starting of motor for overload, short-circuit and under-voltage protections. It is small size, high breaking capacity and short arcing (without arcing). The products can be installed vertically and horizontally.And it have front connection, rear connection and plug-in connection. The product meets the standards of GB14048.2 and IEC60947-2. Product Classification • Breaking Capacity: a Standard Type (L type) b Relatively high Type (M type); • Connection Type, a Front connection b Rear connection c Plug-in connection. • Operation Type: a handle directly operation; b Rotary handle operation; c Electrical operation; (63-225 Size Electromagnet type; 400-800 Size motor type); • Number Of Pôle: two pôles; three pôles; four pôles. Normal Working Condition • Altitude: not exceed 2000m • Ambient air température: 1 ) Température: -5° C~+ 40rtC; 2) 24 hours average air température shall not exceed +35°C: 3) If the air température is more than +40°C, it need remark the spécial ordering • Air conditions: At mounting site, relative humidity not exceed 50% at the max température of +40°C, higher relative humidity is allowable under lower température For example, RH could be 90% at +20°C, spécial measures should be taken to occurrence of dews. • Pollution grade:Grade 3; • Protection Grade: IP20.