KNM1 Moulded Case Circuit Breaker

KNM1 series moulded case circuit breaker(hereafter reffered to as simply breaker) The rated insulation voltage of the breaker is 800v (KNM1-63 is 500v),suitable for turn-on or turn off not frequency and starting a motor not frequently in the circuit of AC 50hz,rated working voltage 690V or bellow (KNM1-63 is 400v)-rated working current up to800A (KNM1-800 is motor protection-free), The breakers have overload, short -circuit andunder voltage protection devices, so as to protect the circuit and the power equipment against damage.Breakers could be installed vertically(upright) or horizontally (transverse);
Breakers has disconnecting function, its corresponding symbol is shown as “fuhao”;
Breakers comply with demands of following standards
IEC60947-1 and GB/T14048.1-2000 general
IEC60947-2 and GB/T14048.1-2001 low voltage breakers
IEC60947-4-1 and GB/T14048.4-2003 mechanical contactors and motor starters
IEC60947-5-1 and GB/T14048.5-2001 electrical equipments of electromechanical control circuit

Type	Frame (lnm)	Rated Current(A)	Rated working voltage(V）	Rated insulation voltage	Rated limiting short-circuit breaking ability KA 400V	Rated operating short-circuit breaking ability KA 400V	Outline dimensions			Mounting dimensions
							L	W 3p/4p	H	A	B	4-Φd
KNM1-63L	63	(6),10,16,20,25,32,40,50,63	AC400V	500V	25	18	135	78	73.5	25	117	Φ3.5
KNM1-63M					50	35	135	78/103	81.5
KNM1-100L	100	(10),16,20,25,32,40,50,63,80,100	AC400V	690V	35	18	150	92	68	30	129	Φ4.5
KNM1-100M					50	35	150	92/122	86
KNM1-100H					85	50
KNM1-160L	160	100,125,140,160	AC400V	690V	35	22	165	107	86	35	126	Φ4.5
KNM1-160M					50	35	165	107/142	103
KNM1-160H					85	50
KNM1-225L	225	100,125,140,160,180,200,225	AC400V	690V	35	22	165	107	86	35	126	Φ4.5
KNM1-225M					50	35	165	107/142	103
KNM1-225H					85	50
KNM1-400L	400	225,250,315,350,400	AC400V	690V	42	35	257	150/198	105	44	194	Φ7
KNM1-400M					62	50	257	150/198	105	44	194	Φ7
KNM1-400H					100	65
KNM1-630L	630	400,500,630	AC400V	690V	42	35	270	182/240	110	58	200	Φ7
KNM1-630M					65	50	270	182	110	58	200	Φ7
KNM1-630H					100	65
KNM1-800M	800	630,700,800	AC400V	690V	75	50	275	210	103	70	243	Φ7
KNM1-800H					100	65

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