415V/ 125A/1600A ACB Air Circuit Breaker MCB Circuit Breaker factory and building
1 Product description:
A circuit breaker is one kind of electric device, used to break any circuit manually otherwise through remotely under normal circumstances. The main function of a circuit breaker or CB is to break a circuit in some fault conditions like a short circuit, over-current, etc. Generally, a circuit breaker switches or protects the system. Some devices are associated with circuit breakers such as relays; switches, fuses, etc are also used for the same purpose. The applications of circuit breakers mainly include power systems and industries for protecting as well as controlling various parts in the circuit namely transformers, switch gears, motors, alternators, generators, etc. There are different kinds of circuit breakers used in industries where the air circuit breaker is one type. Air Circuit Breaker (ACB) is an electrical device used to provide Overcurrent and short-circuit protection . These are usually used in low voltage applications below 690V. We can find these systems in Distribution Panels (below 690V).
An air circuit breaker is a circuit operation breaker that operates in the air as an arc extinguishing medium, at a given atmospheric pressure. There are several types of air circuit breakers and switching gears available in the market today that are durable, high-performing, easy to install and maintain. The air circuit breakers have completely replaced oil circuit breakers.The construction of an air circuit breaker can be done by using different internal .
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Brand Name
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Baikong
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Model Number
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NXA
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Rated Voltage
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380V/400V/415V
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Rated Frequency
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50/60hz
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Number of poles
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3P/4P
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Rated operational voltage Ue
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380V/400V/415V
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Rated insulation voltage
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1000V/1140V
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Rated impulse withstand voltage
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12KV
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Rated frequency
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50/60 Hz
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Flashover distance
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0mm
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Rated current
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1600A~6300A
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Rated current of the N pole
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1600A~6300A
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Rated voltage
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380V/400V/415V,
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Mounting mode
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draw-out type or fixed type
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2. Main Technical Data
| Rated ultimate short circuit breaking capacity (kA rms) VAC 50/60Hz |
Icu |
380/400/415V |
| Rated service short circuit breaking capacity (kA rms) VAC 50/60Hz |
Ics |
380/400/415V |
| Utilization category |
| Rated short-time withstand current (kA rms) VAC 50/60Hz |
lew |
Is, 380/400/415V |
| Closed capacity (kA peak) VAC 50/60Hz |
Icm |
380/400/415V |
| Making current tripping protection function (MCR kA rms) |
| Breaking time (ms) |
| Closing time (ms) |
| Installation, connection and service life |
| Service life C/O cycle |
Mechanical |
Without maintenance |
| Electrical |
Without maintenance |
| Connection |
Horizontal |
| Size (width x depth x height) |
Fixed type |
3P 4P |
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Draw-out type |
3P 4P |
Operation conditions and environment adaptabilit
- Operation temperature: The electrical and mechanical characteristics are applicable to the ambient temperature of -5℃-+40℃. NXA can also operate in the ambient temperature of -45℃-+70℃ (M type, A type), -20℃-+70℃ (P type, H type, CD-1), the derating factor is seen in P21-22.
- Storage conditions: apply to -45℃-70℃
- NXA can resist the following electromagnetic interference
— Overvoltage generated by electromagnetic interference
— Overvoltage caused by environment interference or a power distributing system
— Electrostatic discharge of radio waves (radio, intercom, radar and the like)
- The NXA circuit breaker has successfully passed the test for electromagnetic compatibility specified according to the following standards (EMC) IEC/EN 60947-2 Annex F
- The test can guarantee no false tripping and no interference on tripping time
- Protection grade: Front IP 20, other side IP 00
Product overview
A circuit breaker is one kind of electric device, used to break any circuit manually otherwise through remotely under normal circumstances. The main function of a circuit breaker or CB is to break a circuit in some fault conditions like a short circuit, over-current, etc. Generally, a circuit breaker switches or protects the system. Some devices are associated with circuit breakers such as relays; switches, fuses, etc are also used for the same purpose. The applications of circuit breakers mainly include power systems and industries for protecting as well as controlling various parts in the circuit namely transformers, switch gears, motors, alternators, generators, etc. There are different kinds of circuit breakers used in industries where the air circuit breaker is one type. Air Circuit Breaker (ACB) is an electrical device used to provide Overcurrent and short-circuit protection . These are usually used in low voltage applications below 690V. We can find these systems in Distribution Panels (below 690V).
An air circuit breaker is a circuit operation breaker that operates in the air as an arc extinguishing medium, at a given atmospheric pressure. There are several types of air circuit breakers and switching gears available in the market today that are durable, high-performing, easy to install and maintain. The air circuit breakers have completely replaced oil circuit breakers.The construction of an air circuit breaker can be done by using different internal .
The external parts of ACB mainly include the ON & OFF button, an indicator for the position of the main contact, an indicator for the mechanism of energy storage, LED indicators, RST button, controller, rated nameplate, handle for energy storage, displays, shake, fault trip rest button, rocker repository, etc.
The internal parts of ACB mainly include supporting structure with steel sheet, the current transformer used to protect the trip unit, pole group insulating box, horizontal terminals, arcing chamber, trip unit for protection, terminal box, closing springs, CB opening & closing control, plates to move arcing and main contacts, plates for fixed main & arcing contacts
