Moulded Case Circuit Breaker MCCB With CE CB KNM1

Moulded Case Circuit Breaker MCCB With CE CB KNM1

KNM1 series moulded case circunt breaker(hereafter reffered to as simply breaker)The rated nsulation woltageof the breaker is 800V (KNM1-83is 500v),suiable for tum-an ortum of not requency and starting amobor not trequentyin the circuit ofAC 50hz,rated working wolage 890V or below(KNM1-83is 400wH-ated working current up to800A(KNM1-800is molor prcdncfion-fe).

The breakrshawe oertbadt sthot-craitandunder woltage protection devioes,so as to prolcctthe crcult and the power equipment agalnst damage

Breakers could be instaled vertlallyuprght)or honlzontaly(ransversek

Breakers has disoommecing functon,its comesponding symbol s shown as uhao?

Breakers comply wh demands of following standads
IEC60947-1 and GB/T14048.1-2000 general
IEC60947-2 and GB/T14048.1-2001 low wohage breakers
IEC609474-1 and GB/T14048.4-2003 macharica contactors and motor starters
IEC60947-5-1 and GB/T14048.5-2001 elbctrical equipments of elactromechanical control crcult

Parameters & Technical Date

Type	Frame current (Inm)	Rated current (A)	Rated working voltage (V)	Rated insulation voltage	Rated limiting short-circuit breaking ability KA 400V	Rated opearating short- circuit breaker 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	18	12	136	78	73.5	25	117	φ3.5
KNM1-63M					35	22	136	78/103	81.5
KNM1-125L	125	16,20,25,32, 40,50,63, 80,100,125	AC400V	800V	35	22	150	92	68	30	129	φ4.5
KNM1-125M					50	35	150	92/122	85
KNM1-250L	250	100,125,140 160,180,200, 225,250	AC400V	800V	35	22	165	107	86	35	126	φ4.5
KNM1-250M					50	35	165	107/142	105
KNM1-400L	400	225,250,315,350,400	AC400V	800V	42	35	257	150/198	107	44	195	φ7
KNM1-400M					65	50	257	150/198	107
KNM1-630L	630	400,500,630	AC400V	800V	42	35	270	182/240	111	58	200	φ7
KNM1-630M					65	50	270	182	111
KNM1-800M	800	630,700,800	AC400V	800V	65	50	282	210	113	70	243	φ7