WEW45 Series Universal Circuit Breaker
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Summary Description:
WEW45 series intelligent universal circuit breaker is suitable for distribution network with AC 50HZ, rated voltage to 660V(690V) and rated current of 400A ~ 6300A. It is used to distribute electric energy and protect lines and power supply equipment from overload, undervoltage, short circuit, single-phase grounding and other faults. Circuit breaker with intelligent protection function, selective protection precision, can improve the reliability of power supply, to avoid unnecessary power outages. At the same time, it has an open communication interface, which can carry out "four remotes" to meet the requirements of the control center and automation system. When the circuit breaker is at an altitude of 2000 meters, the pulse withstand voltage is 8000V (different altitudes are corrected according to the standard, and the maximum is not more than 12000V). The circuit breaker can be used as an isolator without intelligent controller and sensor.
Product Parameters
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- Product Parameters
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- Commodity name: WEW45 Series Universal Circuit Breaker
WEW45 series intelligent universal circuit breaker is suitable for distribution network with AC 50HZ, rated voltage to 660V(690V) and rated current of 400A ~ 6300A. It is used to distribute electric energy and protect lines and power supply equipment from overload, undervoltage, short circuit, single-phase grounding and other faults. Circuit breaker with intelligent protection function, selective protection precision, can improve the reliability of power supply, to avoid unnecessary power outages. At the same time, it has an open communication interface, which can carry out "four remotes" to meet the requirements of the control center and automation system. When the circuit breaker is at an altitude of 2000 meters, the pulse withstand voltage is 8000V (different altitudes are corrected according to the standard, and the maximum is not more than 12000V). The circuit breaker can be used as an isolator without intelligent controller and sensor.
Main technical parameters
Shell frame current: 2000~6300A Rated voltage: 400/690V Rated current: 400~6300A Rated insulation voltage: 1000V Number of poles: 3P、4P Frequency: 50HZ Rated ultimate short-circuit breaking capacity (Icu): 80~120kA（400V）、
80~100kA（690V）
Rated operating short circuit breaking capacity (Ics): 65~120kA（400V）、
65~100kA（690V）
Rated short-time withstand current (Icw): 65~120kA/1s（400V）、
65~100kA/1s（690V）
Rated impulse withstand voltage (Uimp): 12kV intelligent controller type: Economic type L, standard type M, communication type H Installation method: Drawer type, fixed type Working and installation environment
Ambient temperature:Ambient air temperature -5 ℃ ~ 40 ℃
Atmospheric conditions:The relative humidity of the atmosphere does not exceed 50% at an ambient air temperature of +40°C, and may have a higher relative humidity at lower temperatures, for example up to 90% at 20°C. Special measures should be taken for occasional condensation due to temperature changes.
Altitude:The elevation of the installation site does not exceed 2000m
Installation category:The main circuit is IV; the other auxiliary circuits and control circuits are III.
Pollution level:Level 3
Protection class:IP30
Installation angle:The vertical inclination angle of the circuit breaker is 5 °
Key words:
Explosion-proof monitoring
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Xiamen Welsh Saint Electric Co., Ltd.
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