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E-mail: info@heangroup.com
Tel: 0086-577-62739215
Fax:0086-577-62739275
Add: NO. 88 Liuqing North Road Liushi Yueqing 325604 Zhejiang, China

Home-Moulded Case Circuit Breaker - GM1

PDF: GM1PDF download

Application

GM1(CM1) series moulded case circuit breaker is applicable to the circuit of AC 50/60Hz,

rated insulation voltage 800V,rated opertating voltage up toAC 600V or 250V(DC),rated

operating currnet 6A-800A.It can be used in motors for unfrequent starting and interruption

with the function of the protection against overload,short circuit and undervolatge and

capable of preventing damage of circuits and supply units due to its protection devices

for over-current,short circuit and undervoltage.The MCCB complies with standard of

IEC60497-2&GB14048-2.According to its limit short circuit breaking capacity(lcu),the breaker

are classified into C-type(economical type with current trip-release on N pole closing and

opening with the other three poles),L-type(standard type),M-type(middle high breaking capacity

type) and H-type(high breaking capacity type).

Technical Speciffcation

Type			Rated	Rated	Arcing	Ultimate	Rated	Operation
	Rated	No.	insulation	operating	over	short	service short	performance
	current	of	voltage	voltage	distance	circuit	circuit	On	Off
	In(A)	Pole	Ui(V)	Ue(V)	(mm)	breaking	breaking
						capacity(KA)	capacity(KA)
GM1-63L	6,10,16	3P,4P	800V		0	25	18	1500	8500
GM1-63M	20,25,32				0	50	35
GM1-63M	40,50,63				0	50	35
GM1-100C	10,16,20				0	25	18
GM1-100L	25,32,40				0(≤50）	35	22
GM1-100M	50,63,80				0(≤50）	50	35
GM1-100H	100				0(≤50）	85	50
GM1-225C	100,125,			380/660V	≤50	25	18	1000	7000
GM1-225L	100,125,			AV	≤50	35	22
GM1-225M	160,180				≤50	50	35
GM1-225H	200,225			250V/DC	≤50	85	50
GM1-400C	225,250,				≤50	35	25	1000	4000
GM1-400L	315,350,				≤50	50	35
GM1-400M	400				≤100	65	42
GM1-630C	400,500,				≤100	35	25
GM1-630L	400,500,				≤100	50	35
GM1-630M	630				≤100	65	42
GM1-630H	630				≤100	100	65
GM1-800M	630,700,				≤100	65	42
GM1-800H	800				≤100	100	65

Tripping characteristic

The thermodynamic ralease of the breaker provides the feature of inverse time-delay,

while the magnetic ralease is the instantaneous operation sa shown on table

(distribution circuit breaker)and table 2(motor protection circuit breakers).

Table1
Rated current of release(A)	Thermodynamic Release		operational
	(ambient temp:land+40℃ marine+45℃		current of
	1.05In(cold state)	1.30In(heat state)	magnetic
	inoperative time(h)	operative time(h)	release(A)
6≤In≤63	≥1	〈1	10-50In±20%
63≤In≤100	≥2	〈2	10In±20%
100≤In≤800	≥2	〈2	5-10In±20%

Table 2
	Thermodynamic Release				operational
Rated current	(ambient temp:land+40℃ marine+45℃				current of
of release(A)	1.0In(cold state)	1.20In(heat state)	1.50In(heat state)	7.2In(cold state)	magnetic
	inoperative time(h)	operative time(h)	operative time(h)	operative time(h)	release(A)
10≤In≤225	≥2	〈2	≤4min	4s≤10s	12In±20%
225≤In≤400	≥2	〈2	≤4min	6s≤20s	12In±20%

Working encironment

1.Ltitude≤2000m.
2.Ambient temperature:+40℃（+45℃ for ships)～-5℃.
3.Resistance to moisture.
4.Resistance to salt spry and oil spary.
5.Resistance to mould.
6.Resistance to nuclear radiation.
7.Maximum salant:±22.5°.
8.Reliable work under earthquake condition(4g).
9.Ambient environment free from explosive danger and air or dust which may cause corrosion of metal or weakness of insulation.
10.Ambient encironment free from erosion of rain or snow.

Outline and installation dimension

Next： GM2

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