الشركة المصنعة الأصلية لقواطع الدائرة المسبقة الإلكترونية القابلة للتعديل CQM6E

Applications and Selection Guide

Use the verified CQM6E values below to create a shortlist, then validate the complete circuit. An MCCB rating does not replace conductor calculations, fault-current analysis, coordination review or local installation requirements.

Ordering Guide

1. State the exact model: CQM6E.
2. Provide frame and rated current within the published range: 10–1250A.
3. Confirm poles: 3P / 4P.
4. Specify the trip unit or protection function: adjustable electronic L-S-I-G protection.
5. Provide system voltage, frequency, application, expected fault level, destination market and quantity.
6. List required accessories, terminals, documents and any approved OEM/ODM marking or packaging requirements.

Installation and Coordination Checks

• Use the exact model drawing and instructions; do not infer terminal positions, supply direction or accessory compatibility from another MCCB.
• Verify conductor material and cross-section against the circuit calculation, terminal data, temperature and grouping.
• Confirm Icu/Ics or DC fault duty, upstream/downstream coordination, enclosure conditions, altitude and clearances.
• Installation, isolation, testing and maintenance must be performed by qualified personnel under applicable rules.

Accessory List

Characteristic curve

دليل الاختيار

Product code①	Shell frame grade②	Shell frame rating current optional designator③	Breaking capacity④
CQM6	E	160		S	M	H
Molded case circuit breaker	E Electronically Adjustable	160	160	/	50/35	50/50
		250	250	/	50/35	50/50
		630	630	35/25	50/35	75/75
		800	800	35/25	50/35	75/75
		1250	1250	35/25	50/35	75/75

Operating method ⑤	Number of poles ⑤	Decoupler method and internal accessories ⑥	Rated current A ⑦
P	4	300	160A
P: Motorized operation Z: Turn the handle W: Direct operation	3-pole 4-pole	2: Intelligent disconnectors Note: The last two digits are the accessory code (see attachment)	160, 250, 630, 800, 1250

Function ⑧	Four-pole products can be selected code ⑨	Special code ⑩
2	A	I
1: For power distribution 2: For motor protection	A: N-pole without protection, can not be combined B: N-pole with protection, can be combined C: N-pole with protection, can be combined D: N-pole with protection, can not be combined Note: If the customer does not have a clear request, four-pole products will be defaulted to the B category	I: Overload alarm non-trip function

Main Technical Parameters

Model number			CQM6E-160		CQM6E-250
Rated current of frame level Inm(A)			160		250
عدد الأقطاب			3, 4		3, 4
Rated current In(A),at 40℃,50℃,55℃			32, 63, 125, 160		160, 250
Rated operating voltage Ue(V),AC 50/60Hz			400/415		400/415
Rated insulation voltage Ui (V)			800		800
Rated impulse withstand voltage Uimp(KV)			8		8
Breaking capacity designation			M	H	M	H
Short-circuit breaking capacity Icu/Ics(kA)	AC400/415V		50/35	50/50	50/35	50/50
Rated short-time withstand current Icw(kA),1s	AC400/415V		2	2	5	5
Selectivity category			B	B	B	B
Number of operating cycles (cycle)	ON		6000		6000
	OFF		10000		10000
Electronic decouping (adjustable)	Power distribution protection		●	●	●	●
	Motor protection		●	●	●	●
Accessory	Auxiliary contacts		●	●	●	●
	Alarm contacts		●	●	●	●
	Shunt disconnect		●	●	●	●
	Undervoltage detent		●	●	●	●
	Manual operating mechanism		●	●	●	●
	Motorized operating mechanism		●	●	●	●
	Backplane wiring		●	●	●	●
	Inserted		●	●	●	●
	Coupling plate		●	●	●	●
	Partition between phases		●	●	●	●
Overall dimensions (mm) (a-b-c-ca)		3P	90-155-84-109		105-165-93-120
		4P	120-155-84-109		140-165-93-120

Note:● for optional accessories;”-” for no optional accessories.

Model number			CQM6E-630			CQM6E-800			CQM6E-1250
Rated current of frame level Inm(A)			630			800			1250
عدد الأقطاب			3, 4			3, 4			3, 4
Rated current In(A), at 40℃, 50℃, 55℃			400, 630			630, 800			1000, 1250
Rated operating voltage Ue(V), AC 50/60Hz			400/415			400/415			400/415
Rated insulation voltage Ui (V)			800			800			800
Rated impulse withstand voltage Uimp(KV)			8			8			8
Breaking capacity designation			S	M	H	S	M	H	S	M	H
Short-circuit breaking capacity Icu/Ics(kA)	AC400/415V		35/25	50/35	75/75	35/25	50/35	75/75	35/25	50/35	75/75
Rated short-time withstand current Icw(kA), 1s	AC400/415V		8	8	8	10	10	10	19.2	19.2	19.2
Selectivity category			B	B	B	B	B	B	B	B	B
Number of operating cycles(cycle)	ON		3000			3000			1000
	OFF		8000			8000			3000
Electronic decouping (adjustable)	Power distribution protection		●	●	●	●	●	●	●	●	●
	Motor protection		●	●	●	●	●	●	●	●	●
Accessory	Auxiliary contacts		●	●	●	●	●	●	●	●	●
	Alarm contacts		●	●	●	●	●	●	●	●	●
	Shunt disconnect		●	●	●	●	●	●	●	●	●
	Undervoltage detent		●	●	●	●	●	●	●	●	●
	Manual operating mechanism		●	●	●	●	●	●	●	●	●
	Motorized operating mechanism		●	●	●	●	●	●	●	●	●
	Backplane wiring		●	●	●	●	●	●	●	●	●
	Inserted		●	●	●	●	●	●	●	●	●
	Coupling plate		●	●	●	●	●	●	●	●	●
	Partition between phases		●	●	●	●	●	●	●	●	●
Overall dimensions		3 P	140-257-105-155			210-275-105-155			210-275-105-155
(mm) (a-b-c-ca)		4 P	185-257-105-155			280-275-105-155			280-275-105-155

Note:● for optional accessories;”-” for no optional accessories.

Intlligent Release Adjustment Panel

1.Ir: Rated Current (Ir) Setting Dial

The setting dial for the rated current, applicable to 160-1250 frame sizes. The selectable settings on the front panel are:0.4, 0.45, 0.5, 0.55,0.6, 0.7,0.8,0.9,1.0, OFF.

2.Tr. Long-Time Delay (Tr) Setting Dial

The setting dial for the overload long-time delay. When the current passing through the circuit breaker reaches 1.5 times lr (×in), the breaker trips within the set time.

The selectable settings are: 8s, 12s, 16s, 24s, 32s, 48s, 64s, 96s, 128s,256s.

3.Isd: Short-Time Delay Current (Isd) Setting Dial

The setting dial for the short-time delay current multiplier. Selectable setting are: 2,3, 4, 5, 6,7,8, 9, 10, OFF. When a short-circuit current equal to the set value(×Ir, ×In) passes through the breaker, it will trip after a time delay.

4.Tsd: Short-Time Delay Operating Time (Tsd) Setting Dial

The setting dial for the short-time delay operating time. It is divided into inverse-time protection (²t ON) and definite-time protection (²t OFF). Selectable settings are: 0.05s, 0.1s, 0.15s, 0.2s, 0.3s. When a short-circuit current equal tosses through the breaker, it will trip within the set time.

5.li: Instantaneous Current (Ii)Setting Dial

The setting dial for the instantaneous current multiplier. Selectable settare:2,3,4,5,6,8,9,10,12. When a short-circuit current equal to the set value (×in) passes through the breaker, it will trip instantaneously.

6.Ip: Pre-alarm Current(Ip) Setting Dial

The setting dial for the pre-alarm current multiplier. Selectable settings are:60%,65%,70%, 75%, 80%, 85%, 90%, 95%, 100%, OFF. When the current passing through the breaker reaches the set value (×ir, ×in), the pre-alarm indicator light will illuminate.

7.Ig: Ground Fault Current (Ig) Setting Dial

The setting dial for the ground fault current multiplier. Selectable setting are:0.2,0.3, 0.4, 0.5, 0.6, 0.7, 0.8, 0.9, 1.0,OFF. When the ground fault current passing through the breaker reaches the set value (×In),the breaker will trip due to the ground fault.

Characteristics of Intelligent Release: It has protection functions such as overload long-delay inverse time, short-circuit short-delay inverse time,short-circuit short-delay fixed time,and short-circuit instantaneous action. These functions can be set by the user to form the required protection characteristics. The inverse time action characteristics of long-delay overcurrent protection are shown in the table:

Current		time of action
power distribution	1.05lr	>2h inoperative(In>63A),1h inoperative (In≤63A)
	1.3r	<1h action
	1.5lr	Settling time tr(s)	Inm-125A、250A、400A、630A、800A、1250A
			8、12、16、24、32、48、64、96、128、256

Remarks:Tolerance of operation value is ±10%,tolerance of operation time is ±15%.

Short delay overcurrent protection action characteristics

 

When Tsd is within the 1²tON stall range,it is a fixed time limit:

Current	time of action
I≤Isd≤6Ir counter-time limit	I²T2=(6Xlr)² Tsd
I>Isd and I>6Ir Inverse time limit to fixed time limit	Consolidation time	0.05	0.1	0.15	0.2	0.3
	Inaccuracies	±0.02	±0.03	±0.04	±0.06	±0.08
	Returnable time	–	–	0.14	0.21	0.3

Remarks :1 is the actual passing current, T2 is the actual action time,lsd is the set short delay curent, Tsd is the set short delay action time

 

When Tsd is in the range of I²tOFF gear,it is fixed time limit:

Current	time of action
l≥lsd Current Error±10%	Consolidation time	0.05	0.1	0.15	0.2	0.3
	Inaccuracies	±0.02	±0.03	±0.04	±0.06	±0.08
	Returnable time	–	–	0.14	0.21	0.3

Remarks:lis the actual passing current,T2 is the actual action time;lsdis the short delay curent, Tsd is the short delay actiontime.

Short-circuit transient protection action characteristics

Current	li=(2,3,4,5,6,8,9,10,12)×ln
Motion Characteristics	Operating current	Minimum operating current 0.9li Maximum inoperative current 1.1li
	time of action	<0.1s

 

Grounding protection operating characteristics

Current	Ig=(0.2,0.3,0.4,0.5,0.6,0.7,0.8,0.9,1.0)×ln
Motion Characteristics	Ig≤0.9lg Circuit breaker inoperative	Ig>1.1lg
	time of action	Tg=0.4(fixed time limit)

The electronic striker panel indicators are set as follows

Overload pre-warning characteritics:

Load Current	I<1lp	I > 1lp
Indicator status	Indicator ligh is not flashing,does not light up	Indicator light constant

Load Current	I<1.15lp	I ≥ 1.15lp
Indicator status	Indicator light is not on	Indicator ligh is on

Load Current	≥0.4In(Single phase)	l≥0.2ln(Tri-phase)
Indicator status	Indicator light is on	Indicator light is on

ملاحظة:

1.The above current error±10%.

2.The pre-alarm current needs to satisfy the startup current constraint,i.e.,the current cannot be lower than the operating condition.

Outline and Installation Dimensions(mm)

Molded case circuit breaker	Overall dimension																					Installation dimensions		Bolt
	A		A1		A2		A3		B	B1	B2	B3	B5	B6	H	H1	H2	H3	H4	H5	H6	A4	B4
	3P	4P	3P	4P	3P	4P	3P	4P
CQM6E-160	90	120	60	90	–	–	–	–	155	134	102	50	50	–	109	83	4	83	76	24.5	24.5	30	132	M8
CQM6E-250	105	140	70	105	–	–	–	–	165	144	102	50	110	–	120	95	4	91	84	22.5	24	35	126	M8
CQM6E-630	140	185	88	132	140	196	112	196	257	230	179	90	110	42	155	107	5	105	97	30	32	44	194	M10
CQM6E-800	210	280	140	210	180	250	140	250	275	243	192	90	110	87	155	107	5	104	97	25	25	70	242.5	M12
CQM6E-1250	210	280	140	210	180	250	140	250	275	243	192	90	110	87	155	107	5	104	97	25	25	70	242.5	M10*2

Appearance and instllation dimensions at the rear of the panel

Appearance and installation dimensions of the rear part for the plug-in type(on the panel)

Molded case circuit breaker	B-board rear wiring dimensions								C Front-of-Board Wiring Dimensions			C Plug-in wiring size
	A1	B	B1	H	H1	φd	φd1	φd2	φd3	A4	B4	A	A1	A2	A3	A4	A5	A6	A7	H	B	B1	B2	B3	φd	H2	H3
125	25	114	111	62	87	6	14	5	5	25	111	130	58	115	132	17.5	20	58	97	28	75	50	50	77	5.5	15	10.5
160	30	134	132	72	112	8	18	5	5	30	132	155	60	134	173	38	40	60	98	50	92	60	60	94	6.5	31	19.5
250	35	144	126	87	126	12	24	5	5	35	126	165	54	144	184	45	47	54	95	50	107	70	70	109	6.5	35	21.5
630	44	230	194	83	136	18	35	7	7	44	194	257	125	225	280	55	57	125	169	60	140	87	60	142	9	32	φ23
800	70	243	243	174	243	26	48	7	7	70	243	275	147	242	42	55	58	147	190	91	218	140	107	222	10.5	31	φ27

Appearance and installation dimensions of the rear part for the plug-in type(on the panel)

Model Number	A	E	L2	L3	D	E	H	H1	L	A1	B1	D1	A2	B2	D2
160	112	30	200	216	4.5	6.5	56	28	182	172	30	5.5	67	60	6.5
250	150	35	233	245	4.5	8.5	74	33	202	191	35	5.5	74	70	6.5
630	283	70	363	405	6.5	12.5	125	67	341	327	70	6.5	143	140	7
800	283	70	363	405	6.5	12.5	125	67	341	327	70	6.5	143	140	7

The internal accessories of CQM6E series include under-voltage detent,shunt detent, auxiliary alarm detent,its main technical paraameters and wiring diagrams are as follows.

Under-voltage release device

Internal accessories
Rated voltage of the power supply	Main Performance
AC220,AC240 AC380,AC415	A. When the supply voltage drops to 70%and 35%of the rated voltage, the undervoltage detector shall operate. B. When the electro-hydraulic voltage is lower than 35%of the rated voltage,the undervoltage detractor should not be able to absorb,in order to prevent the circuit breaker from closing. C.When the power supply voltage is equal to or greater than 85% of the rated voltage,the undervoltage detractor will ensure the absorption, and ensure the reliable closing of the circuit breaker.

Shunt release device
Rated supply voltage	Main Performance
DC24,DC110 AC220,AC3B0	The shunt release can operate reliably between 70%and 110%of the rated voltage value.

Auxiliary alarm contact
Rated voltage of power supply	Main performance
Auxiliary switch AC 125V 5A,AC 250V 3A DC 125V 0.4A,DC 125V 0.2A	Provides differentiated signals for circuit breakers in the”closed” and “open”positions.
Alarm switch AC 125V 5A,AC 250V 3A DC 125V0.4A,DC   125V 0.2A	Provides signals to distinguish between “normal operation and “fault free release” positions of circuit breakers.
Auxiliary alarm switch AC 125V 5A.AC 250V 3A DC 125V 0.4A,DC125V 0.2A	Provides signals to distinguish between “closed”, “open” and “fault free release” positions of the circuit breaker.

Internal accessory

DC3 Electric Operation Mechanism

DC3 series electric operation mechanism is adopted advanced switching power supply technology,utilizing smallpermanent contact motordrive,small working current,suitable for 63-800A plastic case circuit breakers.

Model Number		DC3-125	DC3-160	DC3-250	DC3-630	DC3-800
Compatible نموذج		CQM6-125	CQM6-160 CQM6RT-160 CQM6RE-160	CQM6RE-250 CQM6-250 CQM6L-250 CQM6RT-250 CQM6Z-250	CQM6-630 CQM6L-630 CQM6RT-630 CQM6RE-630 CQM6Z-630	CQM6-800 CQM6L-800 CQM6RT-800 CQM6RE-800 CQM6L-1250 CQM6RE-1250
Overall Dimensions	A	25	30	35	44	70
	B	117	132	126	194	243
	C	73	90	90	130	130
	H	98	98(89.5)	102(92)	152	153
Rated voltated V		AC-110-240, DC100-220,DC24				AC 230,DC 220 AC 100,DC 110
Starting current A		≤0.5				≤2
Mechanical life(times)		14000			10000	5000
Power(W)		14				35

1.Manual operation:Counterclockwse operationis prohibited.

2.When operating manually,insert the handle at the starting point and turn it 180° in a clockwise direction.

Manual operating mechanism

Shape of the circular handle and the door panel opening size (the distance from the center of the opening to the hinge should not be less than 200mm)

Outline and Installation Schematic Diagram of the Central Series Manual Opion Mechanism

Hand-operated mechanism model	A	B	C	D	H
160	30	132	66	66	46
250	35	126	63	63	51
630	128	194	97	97	76
800	198	243	121.5	121.5	76
1250	198	243	121.5	121.5	76