Scope of Application
NLW1O series Intelligent Universal Air Circuit Breakers (hereinafter referred to as breaker) is suitable for distribution systems with 50Hz, rated voltage 400V/690V, rated current 200A—1600A. It can distribute power and protect circuit and power device, prevent from danger of overload, under voltage, short circuit, single phase grounding, etc.. The 630A and below breaker can be used to operate motor directly, for its infrequently ON/OFF.
This breaker has feature: compact, intelligent and with multi protection. It can increase the reliability of the power supply, avoid unnecessary power off by precise selective protection. Meanwhile, it is with multi opening communication interface, which is convenient for electricity distribution automation in control center and automation system.
This breaker also has isolating function. It can be used as isolator, while without intelligent controller and sensors. The symbol is
Standard:
GB 14048.2-2008, IEC 60947-2:2006
Main Specification And Technical Parameters
| Frame Size Current Inm (A) | 1600 |
| Rated Current In (A) | 200 | 400 | 630 | 800 | 1000 | 1250 | 1600 |
| Rated Voltage Ue (V) | 400690/50HZ |
| Rated Insulation Voltage Ui (V) | 1000 |
| Rated Impulse Withstand Voltage Uimp (V) | 12 |
| Limiting Short-circuit Breaking Capacity Icu (kA) | 55 |
| Operating Short-circuit Breaking Capacity Ics (kA) | 50 |
| Rated Short-time Withstand Current Icw (kA/s) | 42 |
| Complete Breaking Time (no addicional delay)ms | 9-11 |
| Making Time (ms) | 60 |
Ningbo Ville Electric Co., Ltd. is a company specialized in research, development and production of transformer and high voltage & low voltage electrical power equipment.
It locates in Hi-technical enterprise R & D center zone of Ningbo, Zhejiang province, which is one of the well-know coastal city in China. Its professional engaged in turnkey project contractor of power substation, power plant project and electric power complete equipments.
Working field: Manufacturing, engineering, designing, executing and commissioning for HV and LV electrical products.
Products application:
Power-fossil fuel plant, Steel plant, Infrastructure- railway, international generation, substation, hydropower station, wind power substation, transmission and distribution.
We has excellent experience and good capacity in complete projects equipments in Generation, Substation, Transmission and Distribution from 400V-330kv, especially in Power plant, Substation construction and Transmission line, including of design, complete equipment, installation, Commissioningand after-sales service, and also design the complete Electrical Solutions according to customer's demand. We are mainly services to International State Power Board, Power Construction Contractor, Power Project Contractor, Factories and the Electric Power Project in the world.
In order to achieve the enterprise's strategic target---being stronger, larger, and superior, we continue to expand throughout the world's markets for power transmission and distribution area. And we also actively attach our team to competition, walking forward to the mission of "First-class worldwide electrical equipment supplier"
