Moulded Case Circuit Breakers | Meba Electric Co., Ltd

Meba Mcb And Mccb HJW-250

Specification

·Brief description
G series moulded case circuit breaker not only has compact volume than normal circuit breaker or fuse, but
also supply more advanced performance. Advantages as following:

■Easy installation accessory

■20A-2500A can equip with electronic trip

■Built in 20A earth fault protection

·Application
HJW-250 is one kind of latest developed molded case circuit breaker in our factory, it is according to cutler-hammer technology, at present we mainly export to South America and Middle East countries, quality is satisfied by our customers.

·Operating mechanism
1. G circuit breaker adopts shaft operation feature, this shaft can instruct circuit breaker’s working condition: ON OFF and PIPPED.

2. When circuit breaker appear overloading, short circuit, shunt or under voltage trip action, shaft will jump to TRIPPED (trip) position, at this time, if need to re-switch on must push shaft to RESET position.

3. On both sides of shaft on EG and RG frame there will have 2 windows, which direct circuit breaker’s working condition, red, green and white each correspondence to: On/OFF/TRIPPED.

Technical Parameter

Type			G	F				J	K	L
Frame Current(A)			100	225				250	400	630
Culter-hammer Specifications			GWF	FW	HFW	FWH	HFWF	HJW	HKW	HLW
Rated Current(A)			16-100	16-225				125-250	125-400	315-600
Number of Poles			3 Poles
Breaking Capacity(kA, rms), AC50/60Hz
IEC60947-2	220-240V AC	Icu	65	85	100	85	100	100	100	100
	220-240V AC	Ics	33	85	100	85	100	100	100	100
	380-415V AC	Icu	25	40	70	40	70	70	70	70
	380-415V AC	Ics	13	40	70	40	70	70	70	70
	660-690V AC	Icu	–	12	14	12	14	18	25	25
	660-690V AC	Ics	–	6	7	6	7	9	13	13
	250V DC	Icu	10	10	20	10	20	20	20	20
	250V DC	Ics	5	5	10	5	10	10	10	10
NEMA	240V AC		65	65	100	65	100	100	100	100
	480VAC		22	25	65	25	65	65	65	65
	600VAC		–	18	25	18	25	25	35	35
Rated Insulation Voltage	Main Circuit		750VAC
Rated Insulation Voltage	Auxiliary Circuit		690VAC
Uimp	Main Circuit		6kV	8kV
Uimp	Auxiliary Circuit		4kV
Rated Working Voltage, Ue			440	690
Ambient Temperature			From -20 to +70
Size(mm)	H		123.8	152.4				177.8	280	273
	W		76.2	105				105	140	210
	D		66.7	86				103	104	104
Weight(kg)			1	2.4				5.2	6.1	9.4

Working condition:
1.The altitude not exceeding 2000m
2.The ambient temperature is from +40°Cto -5°C
3.Ambient environment is free from explosive danger and air or dust, which may cause corrosion of metal or weakness of insulation.
4.Ambient environment is free from erosion of rain or snow.
5.Pollution degree 3
6.Over-voltage category III

Gallery

Meba Mcb And Mccb HJW-250

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[Download not found] Meba Mcb And Mccb HJW250 is big ampere circuit breaker with high breaking capacity match with RCCB, MCB use to protection power distribution equipment safety.

Meba Moulded Case Circuit Breakers EZC-250F

Application

1. EZC-250F MCCB series is one of breakers which adopts international advanced design, manufacture technology to develop.

2.The rated insulating voltage is 500V, suitable for AC 50Hz(60Hz), rated working voltage 500V or below, rated working current is 15A to 250A of circuit and use in distributing electric energy.

3. It complies with standard of IEC60947-2.

Classification:

1. Installation way: Mounted vertically, Horizontal installation;
2. By use of circuit breaker usage: Distribution protection, Motor protection;
3. According to the mode of wiring points: Front panel wiring, Back panel wiring , Plug-in connection;
4. According to the mode of operation: direct operating handle, External turning the handle operations, electric operation;
5. By release type distinction: instantaneous action release (magnetic release), thermal + electromagnetic release (duplex); electronic release;
6. Poles Number: 3poles, 4poles;

Specification

Type		EZC60E	EZC100B	EZC100D	EZC160D	EZC250D
Poles No.		3	3	3	3	3
Rated Current In(A)		15, 20, 25, 30, 40, 50, 60	15, 20, 25, 30, 40, 50, 60, 75, 80, 100	15, 20, 25, 30, 40, 50, 60, 75, 80, 100	125, 160	200, 225, 250
Rated Operating Voltage Ue(V)(50/60Hz)		500	500	500	500	500
Rated Insulation Voltage Ui(V)		500	500	500	500	500
Rated Impulse Voltage Uimp(Kv)		6	6	6	6	6
Utilisation Category		A	A	A	A	A
Rated Limited Breaking Capacity Icu(KA)	220/240V	7.5	25	25	85	85
	380V	7.5	10	18	18	18
	400V	7.5	10	15	15	15
Rated Used Breaking Capacity Ics(%Icu)		25	50	50	50	50

Trip characteristic:
The thermodynamic release of the breaker has the advantages of inverse time-delay while the magnetic release the instantaneous operation as shown on table 2(distribution circuit breaker)and table 3(motor protection circuit breaker).

Overall & Installation Dimensions:

PDF Download

[Download not found] Meba Moulded Case Circuit Breakers EZC-250F is big ampere circuit breaker with high breaking capacity match with RCCB, MCB use to protection power distribution equipment safety.