NDB2-63 Series Miniature Circuit Breaker MCB
The NDB2 series of circuit breakers provide the short circuit and overload protection, control and isolation functions. Applicable to the low-voltage terminal distribution in the industry, civil buildings, energy, communication, infrastructure and other fields.
Description
Rated voltage: AC230/240, AC400/415, DC60/80, AC120/277, AC480Y/277, DC125
Rated insulation voltage: 400V, 1000V, 230V
Rated impulse withstand voltage: 4kV, 6kV
Rated current: 1A, 1.2A, 1.5A, 1.6, 2A, 3A, 4A, 5A, 6A, 7A, 8A, 10A, 10A, 12A, 13A, 15A, 16A, 20A, 25A, 30A, 32A, 35A, 40A, 50A, 63A
Rated short-circuit breaking capacity: 6kA, 10kA, AC120/240, AC277V/480
Instantaneous tripping characteristic: B: 3~5In, C: 5~10In, D: 10~14In
Mechanical/Electrical life: 10000/10000, 20000/10000
Number of poles: 1PN, 1P/2P/3P/4P, 1P/2P/3P
Features
Quick closing: To ensure the reliable operation of the impact load and extend the life of the circuit breaker
The product structure can limit the short circuit, thus improving the short circuit breaking capacity
The product structure can limit the short circuit,:thus improving the short circuit breaking capacity
Support a variety of accessories: Easy to expand the functions
Modular: Any combination
NDB2 series of circuit breaker has obtained China Compulsory Certification (CCC) for products and CE certification. NDB2Talso has obtained the UL certification.
Technology data
The NDB2 series of circuit breakers provide the short circuit and overload protection, control and isolation functions. Applicable to the low-voltage terminal distribution in the industry, civil buildings, energy, communication, infrastructure and other fields.
Description
Rated voltage: AC230/240, AC400/415, DC60/80, AC120/277, AC480Y/277, DC125
Rated insulation voltage: 400V, 1000V, 230V
Rated impulse withstand voltage: 4kV, 6kV
Rated current: 1A, 1.2A, 1.5A, 1.6, 2A, 3A, 4A, 5A, 6A, 7A, 8A, 10A, 10A, 12A, 13A, 15A, 16A, 20A, 25A, 30A, 32A, 35A, 40A, 50A, 63A
Rated short-circuit breaking capacity: 6kA, 10kA, AC120/240, AC277V/480
Instantaneous tripping characteristic: B: 3~5In, C: 5~10In, D: 10~14In
Mechanical/Electrical life: 10000/10000, 20000/10000
Number of poles: 1PN, 1P/2P/3P/4P, 1P/2P/3P
Features
Quick closing: To ensure the reliable operation of the impact load and extend the life of the circuit breaker
The product structure can limit the short circuit, thus improving the short circuit breaking capacity
The product structure can limit the short circuit,:thus improving the short circuit breaking capacity
Support a variety of accessories: Easy to expand the functions
Modular: Any combination
NDB2 series of circuit breaker has obtained China Compulsory Certification (CCC) for products and CE certification. NDB2Talso has obtained the UL certification.
Technology data
| Technology data of NDB2-63 Series | |
| Rated Insulated Voltage | AC230/240(1P) AC400/415(2P/3P/4P) DC80(1P/2P) |
| Rated operating current (A) | 1~63A |
| Number of poles | 1P,2P,3P,4P |
| Product certification | CCC,CE,TUV,UL1077 |
FAQS
-What is the function of miniature circuit breaker?
A Miniature Circuit Breaker (MCB) is an automatically operated electrical switch used to protect low voltage electrical Circuits from damage caused by excess current from an overload or short circuit.
-What is miniature circuit breaker how it works?
A miniature circuit breaker (MCB) automatically switches off the electrical circuit during an abnormal condition of the network means in overload condition as well as faulty condition. Nowadays we use an MCB in a low voltage electrical network instead of a fuse. Handling an MCB is electrically safer than a fuse.
-What is mean by miniature circuit breaker?
miniature circuit breaker: a small trip switch operated by an overload and used to protect an electric circuit, esp a domestic circuit as an alternative to a fuse.
-How does a house breaker work?
Inside each circuit breaker is a spring hooked over a small piece of solder (a melt-able fusible alloy). Each breaker is connected to an electrical wire that runs through your house. The electricity that flows through your house runs through the solder.
-What is the advantage of miniature circuit breaker?
MCB (Miniature Circuit Breaker) is a circuit breaker with optimum protection facilities of overcurrent and short circuit only. Its basic function is to detect the fault condition and interrupt the current flow. it avoids overheating in case of excess current & provides fire protection.
-What is the difference between MCCB and MCB?
MCB is miniature circuit breaker which is used to break small currents. Like in domestic LT circuits. The ratings usually end up to 100 A. MCCB is a Module case circuit breaker which has a rugged construction as it can break larger currents usually from (100-1000A).
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