Moulded Case Circuit Breakers (HKKM1-4P)

Product Description

HKKM1L Residual moulded case circuit breaker is suitable for use in circuit of rated voltage 400V, 50Hz, and rated current up to 630A, as an electrical leakage protecting device to man. It also can be used to avoid fire caused by bad insulation of electrical aparatues and earthing faults. The breaker has various protections, protecting loads from over-load, shor-circuit, and over voltage. In the circuit, the breaker is usually used to be isolator for non-frequently switching. Being of small cubicle, high breaking capacity, short arcingdistance, having isolating function, time delay function, residual current protecting function, the breaker can not be connected to circuit up and down. The connection must be following correct diagram that is terminal 1, 3, 5 connect to power lines and terminals 2, 4, 6 connect to load.

Applied standard: IEC60947-2; GB14048.2 and standards

Rated current of release (A)	Thermodynamic release (ambient temp+40 ° C)		Operational current of magnetic release (A)
Rated current of release (A)	1.05In (cold state) inoperative time (h)	1.30In (heat state) inoperative time (h)	Operational current of magnetic release (A)
In ≤ 63	≥ 1	< 1	10In ± 20%
63 ≤ In _ 125	≥ 2	< 2	10In ± 20%
125 ≤ In _ 630	≥ 2	< 2	10In ± 20% , 5In ± 20%

Rated current of release (A)	Thermodynamic release (ambient temp+40 ° C)				Operational current of magnetic release (A)
Rated current of release (A)	1.0In (cold state) not operative time (h)	1.20In (heat state) operative time (h)	1.50In (heat state) operative time (h)	>2In (cole state) operative time (h)	Operational current of magnetic release (A)
10 ≤ In ≤ 400	2	2	8min	6S < Tp ≤ 20S	12In ± 20%

TECHNICAL DATD

Type			HKKML1-100				HKKML1-225							HKKML1-400					HKKML1-630
Rated current of shell classification Inm(A)			100				225							400					630
Rated current In(A)			16,20,25,32, 40,50,63,80,100				100,125,140, 160,180,200,225							200,225,250, 315,350,400					400,500,630
Rated operational voltage Ue(V)			400V
Rated insulating voltage Ui(V)			800V
Poles			3		4		3			4				3			4		3			4
Arcing distance(mm)			>100				>100							>100					> 100
Breaking capacity			M	H			M		H					M		H			M		H
Rated operational limited breaking capacity Lcu(KA)		AC400C	50	85		50	50		85		50			65	100			65	65	100			65
Rated operational short circuit breaking capacity lcs(KA)		AC400C	35	50		35	35		50		35			42	62			42	42	62
Rated residual active current In(mA)		I	100/300/500
		I I	30/100/300									300/500/1000
Rated residual not-active current I no(mA)			1/2I _ no
Rated residual short circuit making (breaking) capacity Im(mA)			1/4Icu
Operations(OPS)	Elec.		3000					3000					2000						1500
	Mech.		7000					7000					4000						3000