3KMl (DZl27 ) series mould the shell type circuit breaker and is suitable for exchanging 50Hz, the working voltage of amount is to 400V, the distribution line to 800A of specified electric current, make and distribute electric energy and overload of the circuit and power equipment , short out and owing the voltage to protect, and serve the purpose of the not frequently changing of the circuit under the normal condition of work. The circuit breaker of the Model H is besides suitable for routine environmenting, when the environment temperature is 70 degrees Centigrade, can work normally , is especially suitable for the outdoor complete sets of device of power system or the harsh environment of other high temperature.

Reference standards:

GB14048.2 IEC947-2

Type Instruction:

Product specification and main technical parameter

Maximum rated current of release of 3KM1-800H MCCB is 750A
Type of release and symbols for accessories

过电流脱扣器方式 Type of release	瞬时脱扣器 Instantaneous release	复式脱扣器 Complex release	过电流脱扣器方式 Type of release	瞬时脱扣器 Instantaneous release	复式脱扣器 Complex release
附件代号 Symbol of accessory			附件代号 Symbol of accessory
附件名称 Name of accessory			附件名称 Name of accessory
无 None accessory	200	300	分励脱扣器.报警触头 Shunt release.Alarm contact	218	318
报警触头 Alarm contact	208	308	二组辅助触头.报警触头 Two groups of auxiliary contacts.Alarm contact	228	328
分励脱扣器 Shunt release	210	310	欠电压脱扣器.报警触头 Under-voltage release.Alarm contact	238	338
二组辅助触头 Two groups of auxiliary contacts	220	320	分励脱扣器.二组辅助触头.报警触头 Shunt release.Two groups of auxiliary contacts.Alarm contact	248	348
欠电压脱扣器 Under-voltage release	230	330	分励脱扣器.欠电压脱扣器.报警触头 Shunt release.Under-voltage release.Alarm contact	258	358
分励脱扣器.二组辅助触头 Shunt release .Two groups of auxiliary contacts	240	340	四组辅助触头.报警触头 Four groups of auxiliary contacts.Alarm contact	268	368
分励脱扣器.欠电压脱扣器 Shunt release.Under-voltage release	250	350	欠电压脱扣器.二组辅助触头.报警触头 Under-voltage release.Two groups of auxiliary contacts.Alarm contact	278	378
四组辅助触头 Four groups of auxiliary contacts	260	360
二组辅助触头.欠电压脱扣器 Two groups of auxiliary contacts.Under-voltage release	270	370

Technical parameter of shunt release、under-voltage release and power operating mechanism.

类型 Category of accessory	额定电压 Rated voltage
	交流 AC 50Hz	直流 DC
分励脱扣器 Shunt release	220.380	110.220
欠电压脱扣器 Under-voltage release	380
电动操作机构 Power operating mechanism	220.380	110.220

周围环境温度 Ambient temperature	试验电流 Test current	脱扣器额定电流 Rated current of release	试验时间 Test time	预期试验结果 Result to be obtained	起始状态 Initial condition
+30±2℃ 或 or 70±3℃	1.05In	In ≤63A	1h	不脱扣 Non tripping	冷态 Cold
		In >63A	2h
	1.30In	In ≤63A	1h	脱扣 Tripping	热态 Hot
		In >63A	2h
任何合适温度 Any convenient temperature	5In 或 10In	所有额定电流 All ratings	≤0.2s	脱扣 Tripping	冷态 Cold

Overall and installation dimensions

型号 Type	外形尺寸 Overall dimensions								安装尺寸 Installing dimensions
	W	L	H	W1	L1	L2	H1	H2	A	B	d
3KM1Y-63	76	135	75	50	170	--	90.5	20	25	117	3.5
3KM1J-63	76	135	83	50	170	--	98.5	28	25	117	3.5
3KM1Y-100	92	150	68	60	185	--	86	24	30	129	4.5
3KM1J-100	92	150	86	60	185	--	104	24	30	129	4.5
3KMIY-225	107	165	86	70	215	--	110	24	35	126	5
3KM1J-225	107	165	103	70	215	--	127	24	35	126	5
3KM1Y-400	150	257	105	96	357	--	155	38	44	194	7
3KM1J-400	182	270	110	116	370	--	160	43	58	200	7
3KM1Y-630	182	270	110	116	370	--	160	43	58	200	7
3KM1J-630	182	270	110	116	370	--	160	43	58	200	7
3KM1 -800	210	268	108	140	--	398	147	21.5	70	200	7