Rated current from 200A 400A 630A 800A 1000A 1250A 1600A 2000A 2500A 2900A 3200A 4000A 5000A to 6300A; Rated operational voltage (Ue) from 220/230/240VAC 380/400/415VAC 440/480VAC 660/690VAC to 1000VAC; Rated limit short-circuit breaking capacity Icu (AC415V) from 65kA to 120 kA; Installation type include fixed type and draw out type.
2021 Quick Selection Guide >>
Description
The NDW2 series of air circuit breakers (hereinafter referred to as ABCs) can be applied to the distribution network with the AC 50Hz/60Hz, the rated current of 200A - 6300A, the rated insulation voltage of 1000 V, the rated working voltage of AC220V/230V/240V, AC380V/400V/415V, AC440V/480V, AC660V/690V. NDW2-4000 can also be applied to the distribution network with the rated working voltage of AC1000V for distribution of electrical energy and protecting circuit and power equipment from overload, under-voltage, short circuit, single phase grounding and harm of other faults, and can also be used as isolation switch at the same time. The circuit breaker has multiple protection functions. It can avoid unnecessary sudden power failure while realizing highly accurate selective protection, and improve the reliability and security of the power supply system.
Product family
NDW2 series of air circuit breakers have five frame types included, NDW2-1600, NDW2-2000, NDW2-3200, NDW2-4000, NDW2-6300.
Feature
Technology data
Circuit breaker | NDW2-1600 | NDW2-2000 | NDW2-3200 | NDW2-4000 | NDW2-6300 | |
Number of poles | 3, 4 | 3, 4 | 3, 4 | 3, 4 | 3, 4 | |
Rated current In 40℃ | 200A~ 1600A | 400A~ 2000A | 2000A~3200A | 800A~4000A | 4000A~6300A | |
North pole rated current | 100%In | 100%In | 100%In | 100%In | 100%In | |
Rated operational voltage Ue | AC690V | AC690V | AC690V | AC1000V | AC690V | |
Rated limit short-circuit breaking capacity Icu (AC415V) | 65kA | 80kA | 100kA | 100kA | 120kA | |
Rated operating short-circuit breaking capacity Ics (AC415V) | 55kA | 80kA | 85kA | 100kA | 120kA | |
Rated short time withstand current Icw (AC415V) 1s | 42kA | 60kA | 85kA | 85kA | 100kA | |
Controller | Excluding controller | ● | ● | ● | ● | ● |
KM controller | ● | ● | ● | ● | ● | |
KY controller | ● | ● | ● | ● | ● | |
Installation type | Fixed type | ● | ● | ● | ● | ● |
Drawout type | ● | ● | ● | ● | ● | |
Special application | Wind power, low-temperature circuit breaker | -- | ● | ● | ● | -- |
Thermal-humidi ty type circuit breaker | ● | ● | ● | ● | ● |
FAQs