1.Application

• Protection against short circuit
• Protection against overload
• Control
• Isolation
• Protection of DC system

NDB1-125 series is used in low voltage electrical distribution system in industry, real estate, power, telecom, construction field, etc.

2.Specification

• Frame Size(A):125
• Tripping Curve: C,D
• Rated current(A): 50,63,80,100,,125
• Pole: 1P, 2P, 3P, 4P
• Electricial parameters:
• Rated voltage(Ue): AC230/240V(1P); AC400/415V(2P,3P,4P); DC60/80V(1P);DC80/125V(2P)
• Rated current(In): 50A, 63A, 80A, 100A, 125A
• Ultimate short-circuit breaking capacity(Icu): 10kA
• Service short-circuit breaking Capacity(Ics):7.5kA
• Rated insulation voltage: 500V
• Impulse voltage endurance: 4kV
• Isolation function
• Indication of real breaking
• Green color in the indication window indicates the contacts are open.
• Mechanical and electrical life:
• Mechanical life: 15,000 times
• Electrical life: 6000 times
• Standards and Certificates:
• CCC, CE, TUV, UL1077;
• GB/T 14048.2, IEC 60947-2
• Environmental requirements: RoHS
• Used in place without obvious shock and vibration
• Wiring:
• Adopt tunnel type wiring
• Connection capability: 10m㎡ to 50m㎡
• Connection screw M7, Twisting moment 3.5N.m

3.Working conditions:

• Ambient temperature: -40℃~+70℃
• Relative air humidity ≤95%
• Altitude:≤2000m
• Pollution degree:3
• Used in place without obvious shock and vibration

4.Packing and depositing:

• 1P: 9 pieces in a box, 12 boxes in an overwrap carton
• 2P: 4 pieces in a box, 12 boxes in an overwrap carton
• 3P: 3 pieces in a box, 12 boxes in an overwrap carton
• 4P: 2 pieces in a box, 12 boxes in an overwrap carton
• 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 -40℃ to +80℃. In addition, there should not be acidic, alkaline and corrosive gas in the air
• Products should not be deposited more than 3 years in the above mentioned conditions since the producing date.