NDW3A-2500(UL) Series Air Circuit Breaker
Updated：July 17,2026 19:48PM
NDW3A-2500 (UL) air circuit breaker is suitable for AC 50/60Hz power distribution networks with a rated current of 1000–2000A rated insulation voltage of 1250V and rated operating voltages of AC254V AC508V AC635V and AC730V. It is used for power distribution and for protecting lines and power supply equipment against overload undervoltage short circuit and single-phase grounding faults. This product is mainly applied in new energy industries such as photovoltaic (PV) and energy storage systems meeting customers’ requirements for specialized application scenarios.
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Features of NDW3A-2500(UL) Series
High breaking capacity up to 75kA, ensuring reliable protection under high fault current conditions.Wide operating voltage range, suitable for AC254V to AC730V power distribution systems.
Stable performance in harsh environments, with -40°C to +70°C operating temperature and Level 3 pollution resistance.
Technology data of NDW3A-2500(UL) Series
| Circuit breaker model | NDW3A-2500 | ||
| Rated current In(+40℃) (A) | 1000、1250、1600、2000 | ||
| Rated working voltage Ue (V) | AC254、AC508、AC635、AC730 | ||
| Rated frequency f (Hz) | 50/60 | ||
| Rated insulation voltage Ui (V) | 1250 | ||
| Rated impulse withstand voltage Uimp (kV) | 12 | ||
| Number of poles pole | 3 | ||
| Full break time Note 1 (ms) | ≤50 | ||
| Closing time Note2 (ms) | ≤85 | ||
|
Rated Short-Circuit Current(kA) Power factor(cosφ≤0.15)(UL1066) |
AC254V | 75 | |
| AC508V | 75 | ||
| AC635V | 75 | ||
| AC730V | 65 | ||
|
Rated Short-Time Current(kA) Power factor(cosφ≤0.15)(UL1066) |
AC254V | 75 | |
| AC508V | 75 | ||
| AC635V | 75 | ||
| AC730V | 65 | ||
|
Operation performance |
Electrical life(times) Operation frequency(30 times/h) |
AC635V | 8000(2000A) |
| AC730V | 6000(2000A) | ||
|
Mechanical life (times) Operation frequency(60 times/h) |
Maintenance-free | 10000 | |
Datasheet of NDW3A-2500(UL) Series
NDW3A-2500(UL)-Series-ACB-Datasheet.pdfINQUIRY NOW
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Factory Address：Pudong, Shanghai, China / Jiaxing, Zhejiang, China
Technical Support：+86-400-99-02706 Email：rfq@nader-circuit-breaker.com   |