GENERAL

STM1 series rated insulation voltage of the breaker is 800v (STM1-63 is 500v),suitable for turn-on or turn off not frequency and starting a motor not frequently in the circuit of AC 50hz,rated working voltage 690V or bellow (STM1-63 is 400v)-rated working current up to800A (STM1-800 is motor protection-free), The breakers have overload, short -circuit and under voltage protection

devices, so as to protect the circuit and the power equipment against damage. It complys with IEC60947-2 standards.

SPECIFICATIONS

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
STM1-63L	63	(6),10,16,20,25,32,40,50,63	AC400V	500V	25	18	135	78	73.5	25	117	φ 3.5
STM1-63M					50	35	135	78/103	81.5
STM1-100L	100	(10),16,20,25,32,40,50,63,80,100	AC400V	690V	35	18	150	92	68	30	129	φ 4.5
STM1-100M					50	35	150	92/122	86
STM1-100H					85	50
STM1-160L	160	100,125,140,160	AC400V	690V	35	22	165	107	86	35	126	φ 4.5
STM1-160M					50	35	165	107/142	103
STM1-160H					85	50
STM1-225L	225	100,125,140,160,180,200,225	AC400V	690V	35	22	165	107	86	35	126	φ 4.5
STM1-225M					50	35	165	107/142	103
STM1-225H					85	50
STM1-400L	400	255,250,315,350,400	AC400V	690V	42	35	257	150/198	105	44	194	φ 7
STM1-400M					65	50	257	150/198	105	44	194	φ 7
STM1-400H					100	65
STM1-630L	630	400,500,630	AC400V	690V	42	35	270	182/240	110	58	200	φ 7
STM1-630M					65	50	270	182	110	58	200	φ 7
STM1-630H					100	65
STM1-800M	800	630,700,800	AC400V	690V	75	50	275	210	103	70	243	φ 7
STM1-800H					100	65

SHAPE AND INSTALLATION DIMENSIONS

Items No. Type			STM1 63		STM1-100，125		STM1-250		STM1 400		STM1 630		STM1-800
			L	M	L	M	L	M	L	M	L	M	L	M
Outline Dimensions	Front connection	W	78		92		107		150		182		210
		W1	50		60		70		96		118		140
		W2	103		122		142		198		240		280
		W3	75		90		105		144		174		211
		L	135		150		165		257		270		280
		L1	169		185		295		456		476		490
		L2	117		132		144		224		234		243
		H	74	82	68	86	86	103	107	107	112		116
		H1	90.5	98.5	86	104	110	127	155	155	160		168
		H2	20.5	28	24		24		38		42		41.5
	Rear connection	H3	52		63		52		60.5		61		74
		H4	75		103		97		120.5		121		74
		W4	60		72		87		124		156		178
		W5	85		102		122		172		214		-
		φd1	5.5		5.5		5.5		6.5		7		7
		φD	18		22		24		32		40		48
		L3	87		90		93		164		164		158
	Plug-in	L4	90		87		83		160		177		177
		L5	146		172		190		282		302		-
		L6	85		101.5		117		151		226		226
		H5	28		50		50.5		60.5		91		91
		H6	36		64		71.5		83.5		92		-
		H7	-		76		86.5		106.5		110		-
		H8	-		17.5		17.5		21		21		-
		K	60		62		54		128		142		142
		C	50		60		70		60		105		105
		φd2	5.5		6.5		6.5		8.5		12		12
		M	5		8		8		12		14		14
Installation size		A	25		30		35		44		58		70
		B	117		129		126		194		200		243
		φd	3.5		4.5		4.5		7		7		7

MOULDED CASE CIRCUIT BREAKER (MCCB)