YNM1 series moulded case circuit breaker(short for breaker) is one of new breakers using international advanced design and technique. Rated isolation voltage is 800V(Ynm1-63 is 500V). It is used in circuit with AC 50Hz, rated working voltage under 690V(YNM1-63 is 400V), rated working current 800A for change and start not frequently. The breaker has protection functions of over load, short circuit and under voltage to protect circult and equipment from damage.

     Based on rated maximum short circuit breaking capacity(lcu), the breaker can be N type (normal), H type (higher) and L type(highest). With small size, high breaking capacity,short arcing(some on arcing) and vibration proof, the breaker is an ideal product for land and shipping.

Working conditions

Height above sea level under 2000m
Ambient temperature from -5°c to +40°c (for shipping +45°c)
Moist air proof
Maximum gradient ±25.5°
shipping normal vibration
Earthquake 4g
No explosion hazard, corrosive gas and conductive dust
No rain and snow
Rated current:10A~630A
Pole:3P or 4P