Application

NDB3-50 series circuit breaker for equipment (hudraulic-magnetic circuit breaker) is applied in electrical system, of which the rated current is from 0.5A to 63A and the rated voltage is AC230/400V, AC250V, AC480/277V (50/60Hz) or up to DC125V, to protect the circuit against the overload current and short-circuit current. It is also can be used to make and break the circuit infrequently.

It is widely used in computer, peripheral equipment, industrial automatic devices, telecommunication equipment, power supply for telecommunication, UPS equipment, railway-engine, marine electrical systems, aerospace electrical power system, elevator control systems and mobile power equipment.

NDB3-50(1) Z4(2) 40(3)/ 1(4) L (5) L(6) AL(7) A(8) 0(9)-L (10) XXXX(11)

Working Condition:

• Altitude: ≤2000m
• Operation temperature: -40℃~+85℃
• Humidity: ≤95%
• Service place without explosive media, gas and dust which are corrosive and conductive.
• Be mounted free from rain and snow

Packing and depositing

• Maximum packing quantity:
  1-pole: 30 pieces in a box, 3 boxes in an overwrap carton.
  2-pole: 15 pieces in a box, 3 boxes in an overwrap carton.
  3-pole: 10 pieces in a box, 3 boxes in an overwrap carton
• The products should be stored in the warehouse where there is ventilation. The
  relative humidity there should not exceed 80%, and the ambient temperature there is between
  -25℃ to +60℃. In addition, there should not be acidic, alkaline and corrosive gas in
  the air. The products should not be deposited more than 3 years in the above mentioned
  conditions since the producing date.