molded case circuit breaker compact structure and small volume high breaking capacity and short arcing distance

 molded case circuit breaker

Rated current of frame size lnm(A)		400
Type		KWN-400C		KWN-400S		KWN-400G
Rated current ln(A)		200, 225, 250,315,400
Number of poles		3	4	3	4	3	4
Rated insulation voltage Ui (V)		AC690
Rated operating voltage Ue (V)		AC400
Rated impulse withstand voltage Uimp (V)		8000
Arcing distance(mm)		≤50
Rated ultimate short-circuit breaking capacity lcu(kA)	AC400V	50		75		100
	AC230V	75		120		150
Rated service short-circuit breaking capacity lcs(kA)	AC400V	50		75		75
	AC230V	75		100		100
Operational performance(Number of operating cycles)	With current	1000
	Without current	4000
Outline dimensions(mm)	W	140	184	140	184	140	184
	L	257
	H	103

KWN-400C,S,G/MCCB molded case circuit breaker