WEM1E Series Electronic Moulded Case Circuit Breaker
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Summary Description:
WEM1E series electronic molded case circuit breakers are suitable for infrequent conversion and infrequent starting of motors in circuits with AC 50Hz, rated working voltage of 400V and rated working current of 800A. The circuit breaker has the functions of overload long delay inverse time limit, short circuit short delay inverse time limit, short circuit short delay time limit and short circuit instantaneous protection, which can protect the circuit and power supply equipment from damage. It has the characteristics of small size, high breaking, short arcing and anti-vibration.
Product Parameters
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- Product Parameters
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- Commodity name: WEM1E Series Electronic Moulded Case Circuit Breaker
WEM1E series electronic molded case circuit breakers are suitable for infrequent conversion and infrequent starting of motors in circuits with AC 50Hz, rated working voltage of 400V and rated working current of 800A. The circuit breaker has the functions of overload long delay inverse time limit, short circuit short delay inverse time limit, short circuit short delay time limit and short circuit instantaneous protection, which can protect the circuit and power supply equipment from damage. It has the characteristics of small size, high breaking, short arcing and anti-vibration.
Main technical parameters
Shell frame current: 125A、250A、400A、630A、800A Rated voltage: 400V/690V Rated current: 16~800A Rated insulation voltage: 1000V Number of poles: 3P、4P Frequency: 50HZ Rated ultimate short-circuit breaking capacity (Icu): 50~100kA（400V）
20~30kA（690V）
Rated operating short circuit breaking capacity (Ics): 35~75kA（400V）
10~20kA（690V）
Rated short-time withstand current (Icw): 5~10kA/0.5s（400V）
5~10kA/0.5s（690V）
Rated impulse withstand voltage (Uimp): 8kV Operation mode: Electric/manual/rotating handle Installation method: Board front wiring, board rear wiring, plug-in board front wiring, plug-in board rear wiring, pull-out type Working and installation environment
Ambient temperature:-5 ℃ ~ 40 ℃, and the average value does not exceed 35 ℃
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 installation category of the main circuit and undervoltage tripping of the circuit breaker is III, and the installation category of the other auxiliary circuits and control circuits is II.
Pollution level:Level 3
Protection class:IP30
Usage category:Class B
Key words:
Explosion-proof monitoring
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Xiamen Welsh Saint Electric Co., Ltd.
No.96, Tongsheng North Road, Xiangping Street, Tongan District, Xiamen City
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