CQM6RT Thermal-Magnetic Adjustable MCCB OEM Manufacturer

Accessory List

1.MH can provide thre new products right auxiary svitch,left stunt and left undervoltape for custorrersto chose.

2.In 220,320,240,340,270,370 specincafons,the auxilary swichcanbe used for Mopairs of swches,which shoukdbe specfied when ordering.

دليل الاختيار

Main Technical Parameters

Model number			CQM6T/A.RT-160			CQM6T/A.RT-250
Rated current of frame level Inm(A)			160			250
Number of poles			3, 4			3, 4
Rated current In(A),at 40℃,50℃,55℃			63,80,100,125,160			125,140,160,180,200,225,250
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			C	S	M	C	S	M
Short-circuit breaking capacity Icu/Ics(kA)		AC400/415V	25/18	35/25	50/35	25/18	35/25	50/35
Selectivity category			A	A	A	A	A	A
Number of operating cycles(cycle)		ON	6000			6000
		OFF	10000			10000
Trip mechanisms and protection types	Magnetic trip	Power distribution protection	●	●	●	●	●	●
		Motor protection	●	●	●	●	●	●
	Thermal-magnetic trip	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		●	●	●	●	●	●
Derivative products	Dedicated for prepayment electric meters		●	●	●	●	●	●
	Overload alarm without trip		●	●	●	●	●	●
Overall dimensions (mm) (a-b-c-ca)		3 P	90-155-70-94		90-155-84-109	105-165-70-96		105-165-93-120
		4 P	120-155-70-94		120-155-84-109	140-165-70-96		140-165-93-120

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

Model number			CQM6T/A.RT-630			CQM6T/A.RT-800
Rated current of frame level Inm(A)			630			800
Number of poles			3, 4			3, 4
Rated current In(A),at 40℃,50℃,55℃			250,315,350,400,500,630			500,630,700,800
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			S	M	H	S	M	H
Short-circuit breaking capacity Icu/Ics(kA)		AC400/415V	35/25	50/35	75/50	35/25	50/35	75/50
Selectivity category			A	A	A	A	A	A
Number of operating cycles(cycle)		ON	3000			3000
		OFF	8000			8000
Trip mechanisms and protection types	Magnetic trip	Power distribution protection	●	●	●	●	●	●
		Motor protection	●	●	●	●	●	●
	Thermal-magnetic trip	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		●	●	●	●	●	●
Derivative products	Dedicated for prepayment electric meters		●	●	●	●	●	●
	Overload alarm without trip		●	●	●	●	●	●
Overall dimensions (mm) (a-b-c-ca)		3 P	210-275-105-155			210-275-105-155
		4 P	280-275-105-155			280-275-105-155

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

Operating Characteristics

1.The inverse time operating characteristics of power distribution circuit breakers when all poles are energized simultaneously at anambient airtemperature of +40℃(with no humidity compensation)are shown in the following table:

2.The inverse time action characteristics of circuit breakers for motor protection without humidity compensation when all poles areenergizedsimultaneously at an ambient air temperature of +40℃ are shown in the following table.

3.Action characteristics under short-circuit condition:The short-circuitcurentsetting value of the instantaneous tripper of the circuitbreaker for power distribution is 10ln.

The short-circuit current setting value of the instaneous tripper of the circuit breaker for motorprotection is 12ln.

The accuracy of the short-circuit curent setting value of the instantarheous tripper is 20%of the short-circuit currentsetting value.

CQMGT/A.RT-160 Operating Characteristic Curve

CQMGT/A.RT-250 Operating Characteristic Curve

CQMGT/A.RT-630 Operating Characteristic Curve

CQMGT/A.RT-800 Operating Characteristic Curve

Outline and Installation Dimensions(mm)