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ASKM3E Intelligent Electronic Molded Case Circuit Breaker for General Protection

ASKM3E Intelligent Electronic Molded Case Circuit Breaker for General Protection

ASKM3E intlligent electronic molded case circuit breaker(hereinafter referred to as MCCB) is a new type of circuit breaker designed and developed byour company using international advanced technology. MCCB is suitable for the distribution network of AC 50Hz, rated insulation voltage 1000V, ratedvoltage 400V and rated current up to 800A. MCCB can be used for infrequent switching of lines and infrequent starting of motors.

MCCB have 3-section protection function(LSI, i.e. overload long delay protection+short-circuit short delay protection+grounding protection ), 4-section protection function(LSIG, i,e. overload long delay protection+short-circuit short delay protection+short-circuit instantaneousprotection+grounding protection ) and under-voltage protection function. MCCB can protect circuits and power equipment from damage. Lowtemperature to -40"C type circuit breaker is available.

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FEATURES

Small volume, high breaking capacity, isolation function;

Electronic adjustable tripper based on MCU microprocessor technology, precise three-section

/ four-section protection;

Short-circuit protection with backup protection, there is a backup magnetic tripper to achieve

rapid tripping, limiting the short-circuit current to ensure reliable breaking

FRAME

a67f27b1-36c3-417c-b99a-f956799b38e6

WIRING METHOD

0c0cfe52-d230-48f6-87d9-e2121e5f8900

OPERATION METHOD

9547937e-4329-4535-997e-c8c803db14ad

APPLICABLE STANDARDS

GB14048.2、IEC60947.2

72d84eac-d966-463c-bdda-d85306fd0ae5

TECHNICAL DATASHEET OFASKM1E THERMOMAGNETICNORMAL PROTECTION MOLDED CASE CIRCUIT BREAKER

Model		ASKM3E-125				ASKM3E-250		ASKM3E-400		ASKM3E-630		ASKM3E-800
Frame rating current Inm(A)		125				250		400		630		800
Rated current In(A)		32	63		125	160	250	400		630		800
Overload long delay setting current Ir1(A) Ir1=(0.4-1In)		12.5, 16,20, 25,32	32, 36,40, 45,50, 55,60, 63		63,65, 70,75,80, 85,90,95, 100,125	63,80,90, 100,125, 140,160	100,125,140, 160,180,200, 225,250	200,225,250,280,315, 350,400		400,420,440,460,480, 500,530,560,600,630		630,640,660,680,700, 720,740,760,780,800
Rated operationalvoltage Ue(V)		AC400V/415V AC660V/690V
Rated insulation voltage Ui(V)		1000V
Rated impulse withstand voltage Uimp(V)		12000V
Breaking capacity level		M		H		M	H	M	H	M	H	M	H
Ultimate short-circuit breaking capacity Icu(kA)	AC400V/415V	50		85		50	85	65	100	65	100	65	100
	AC660V/690V	20		20		20	20	20	20	20	20	20	20
Service short-circuit breaking capacity Ics(kA)	AC400V/415V	35		50		35	50	50	65	50	75	50	75
	AC660V/690V	15		15		15	15	15	15	15	15	15	15
Rated short-timewithstand current lcw(kA)/1s		5				5		8		10		10
Use category		B				B		B		B		B
Arc distance		≯50(0)**				≯50(0)**		≯100(0)**		≯100(0)**		≯100(0)**
Electrical service life(times of operation)		8000				8000		7500		7500		7500
Mechanical service life (times ofoperation)	without maintenance	20000				20000		10000		10000		10000
	with maintenance	40000				40000		20000		20000		20000
Outline dimensions (mm)	W(3P/4P)	92/122				107/142		150/198		210/280		210/280
	L	150				165		257		280		280
	H(not including handle)	91				90		106.5		115.5		115.5
Note:after MCCB is equipped with a zero-flashover arc chute,zero-flashover can be achieved.