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NDB1-63 Series Miniature Circuit Breaker
By:Nader Updated:February 16,2020 21:06PM


●Short -circuit protection
●Over-load protection

The NDB1-63 series of circuit breakers are applicable to the low-voltage terminal distribution in the industry, civil buildings, energy, communication, infrastructure and other fields. They are used for the short circuit and overload protection, control and isolation.

Main technical parameters 

● Electrical parameters 
○Number of Poles:  1P, 1PN, 2P, 3P, 3PN, 4P 
○Rated working Voltage:  AC230/240V(1P,1PN); AC400/415V(2P,3P,3PN,4P) 
○Rated Current: 1A,2A,3A,4A,5A,6A, 10A, 16A,20A,25A,32A,40A,50A,63A 
○Rated Insulation Voltage: 500V 
○Rated Frequency:  50/60Hz 
○Rated Impulse Withstand Voltage: 6KV 
○Breaking Capacity: 6KA 
○Instantaneous Tripping Characteristic: B、C、D 
●Mechanical and Electrical life 
○Mechanical Life: 20000 times 
○Electrical Life: 10000 times 


◆ With overload and short circuit protection units - full protection functions.
◆ Modular - Any combination, series support.
◆ The TH35mm standard installation rail is supported - convenient and simple installation


NDB1-63 series of circuit breaker has obtained China Compulsory Certification (CCC), CB, RoHS for products.

Datasheet download