1.Description
	CKWZ is a three-phase AC outdoor vacuum circuit breaker maximum up to 24kV rated voltage and 50Hz rated frequency. 
	 
	 
	2. Working Condition 
	2.1 Ambient air temperature: -45℃~+40℃,daily range of temperature: diurnal variation 25℃  
	2.2 Relative humidity: daily average data ≤95%, monthly average data ≤90%
	2.3 Seismic capacity: ≤magnitude 8, horizontal acceleration ≤ 0.4g, vertical acceleration ≤ 0.2g
	2.4 Altitude: ≤1000m
	2.5 Pollution classification: IV.  
	2.6 Wind speed: ≤35m/s
	2.7 Applicable in the places without fire, without explosion risk, and without violent vibration
	(Exceeding above working condition is available as customized product)
	 
	3. Standard
	----GB1984-2003
	----GB/T11022-2011
	----GB/T11023-1989
	----GB311.1-1997
	----DL/T593-1996
	----DL/T402-1999
	----GB/T3309-1989
	----DL403-1999
	----IEC62271-100
	 
	
		Contact: Summer Yang
	
		Email: international-sales01@zhcomking.com
	
		http://comkingswitchgear.com
	
		www.zhcomking.com