Home > Products > MCB > NDM1 Series Miniature Circuit Breaker
NDM1 Series Miniature Circuit Breaker
By:Nader Updated:February 14,2020 21:20PM

Description

NDM1 include: NDM1-63 Series, NDM1T-63 Series, NDM1-125 Series.
Application
●Protection against short circuit
●Protection against overload
●Control
●Isolation
●Protection of DC system
NDM1-63 series MCB is used in low voltage electrical distribution system in industry, real estate, power, telecom and construction field.
NDM1T-63 series circuit breaker is suitable for the low-voltage terminal power distribution in industry field, residential building field, energy field, telecommunication field, infrastructure field, etc. 
NDM1-125 series is used in low voltage electrical distribution system in industry, real estate, power, telecom, construction field, etc.

Main technical parameters

NDM1-63 Series
○ Rated working voltage (Ue): AC230/240/400/415V (1P); AC400/415V (2P,3P,4P), DC60/80V (1P,2P)
○ Rated current (In): 1A, 2A, 3A, 4A, 6A, 10A, 16A, 20A, 25A, 32A, 40A, 50A, 63A
○ Breaking capacity (Icn): 6 kA (B, C curve breaker40A and below), 4.5 kA(B, C curve breaker 50A and above, D curve breaker)
○ Impulse voltage endurance: 4kV
○ Rated Insulation Voltage: 500V
○ Rated Frequency Withstand Voltage:  AC2500V 50Hz 1min
● B curve
○ Non-inductive or micro-inductive loads
○ Tripping characteristic: instantaneous trip between 3In to 5In
● C curve
○ Illumination distribution system
○ Tripping characteristic: instantaneous trip between 5In to 10In
● D curve
○ Industrial distribution system
○ Tripping characteristic: instantaneous trip between 10In to 14In
● Product certification and implementation standard     
○ Product certificate:CCC,CE,TUV;
○ Product certification standard:GB/T 10963.1,IEC60898-1, GB/T 10963.2,IEC60898-2;
● Environmental requirements:RoHS
NDM1T-63 Series

○Rated Voltage (Ue): AC230/240V(1P), AC400/415V(2P,3P,4P),DC60V(1P);
○Rated Current (In): 1A, 2A, 3A, 4A, 6A, 10A, 16A, 20A, 25A, 32A, 40A, 50A, 63A
○Rated breaking capacity: 6kA
○Impulse withstand voltage: 4kV ○nominal insulation voltage: 415V
● B Curve
○Protection the non-inductive or micro-inductive circuit
○Tripping characteristic: instantaneous trip range 4In(1±20%)
● C Curve
○Protection the illumination distribution circuit
○Tripping characteristic: instantaneous trip range 8In(1±20%)
● D Curve
○Protection the industry distribution system
○Tripping characteristic: instantaneous trip range 12In(1±20%)
NDM1-125 Series
○ 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
○ Rated breaking capacity (Icn): 10kA
○ Impulse voltage endurance: 6kV
○Indication of real breaking
○Green color in the indication window indicates the contacts are open.
● Mechanical and electrical life: 20000 times
● Standards and Certificates
○CCC, CE, TUV, UL1077;
○GB/T14048.2, IEC 60947-2
● Environmental requirements:RoHS
● Used in place without obvious shock and vibration
● C Curve
○ Protection common loads and power distribution circuit
○ Available for the rated current of 50A to 125A
○ Tripping characteristic: instantaneous trip between 6.4In to 9.6In
● D Curve
○Protection big impulse load of starting current (Motor, transformer etc)
○Available for the rated current of 50A to 125A
○Tripping characteristic: instantaneous trip between 9.6In to 14.4In

Features

◆ Withoverload and short circuit protectionunits - full protection functions.
◆ With the “Frame”wiring structure —safe and reliable wiring.
◆ Support a variety of accessories: Residual current action release, auxiliary contact, alarm contact, busbar - Easy to expand the functions.
◆ Modular - Any combination, series support.
◆ The TH35mm standard installation rail is supported - convenient and simple installation

Datasheet download