High-quality CJM1E 1000V 250A 3P Electronic type MCCB Moulded case circuit breaker

Short Description:

·CJM1E series electronic plastic case circuit breaker (hereinafter referred to as the circuit breaker), suitable for AC 50H2 or 60Hz), its rated insulation voltage is 1000V, the rated operating voltage is 690V and below, and the rated operating current is up to 800A for infrequent switching in circuits And the motor is used for infrequent starting. The circuit breaker has overload long delay inverse time limit, short circuit short delay inverse time limit, short circuit short delay fixed time limit, short circuit instantaneous and undervoltage protection functions, residual current protection (optional), and phase loss protection function (optional). It can protect lines and power equipment from damage. The circuit breaker has complete and accurate protection features, which can improve the reliability of power supply and avoid unnecessary power outages.

·Circuit breakers are divided into two types: M type (higher breaking type) and H type (high breaking type) according to their rated limit short circuit breaking capacity. This circuit breaker has the characteristics of small size, high breaking capacity, short arcing, and anti-vibration.

·The circuit breaker can be installed vertically (i.e., vertically) or horizontally (i.e., horizontally).
·The circuit breaker cannot be reversed, that is, only 1, 3, and 5 are allowed to be connected to the power wires and 2, 4, and 6 are allowed to be connected to the load wires.

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Working And Installation Conditions

·Altitude: ≤2000m;
·Ambient temperature: -5°C~+40°C;
·Can withstand the influence of humid air;
·Can withstand the influence of salt spray and oil mist;
·The installation category of the main circuit of the circuit breaker is III, and the installation category of the other auxiliary circuits and control circuits is ll;
·When the maximum temperature is +40°C, the relative humidity of the air does not exceed 50%. Higher relative humidity is allowed at lower humidity. Special measures should be taken to deal with occasional condensation due to temperature changes;
·The maximum inclination is 22.5°;
·In a medium with no explosion hazard, and where the medium is free of gases and conductive dust that can corrode metal and destroy insulation;
·In a place where there is no rain or snow.

Protect

·Overload long-delay action current Ir1 adjustment can be adjusted from 4 to 10 points according to different rated currents of the circuit breaker;
·The long delay action time t1 can be adjusted at 4 points;
·The short-circuit short-delay action current Ir2 can be adjusted at 10 points;
Short delay action time t2 adjustment, 4-point adjustment is available;
The short-circuit instantaneous operating current Ir3 can be adjusted at 9 or 10 points;
The pre-alarm action current Ir0 can be adjusted at 7 points;
Test terminal, used to detect the current setting value of the electronic tripper;
Electronic release working instructions;
Pre-alarm instructions;
Overload indication;
Trip button.

Technical Data

Model		CJM1E-125			CJM1E-250			CJM1E-400			CJM1E-630			CJM1E-800
Frame grade current Inm(A)		125			250			400			630			800
Rated current (adjustable)In(A)		16,20,25,32	32,36,40,45 50,55,60,63	63,65,70,75 80,85,90,95 100,125	100,125,140,160 180,200,225,250			200,225,250,280 315,350,400			630,640,660,680,700 720,740,760,780,800			630,640,660,680,700 720,740,760,780,800
Rated operating voltage Ue(V)		AC400V
Rated insulation voltage Ui(V)		AC1000V
Rated impulse withstand voltage (Uimp)		AC800V
Number of poles (P)		3		4	3		4	3		4	3		4	3		4
Rated ultimate short circuit breaking capacity level		M	H		M	H		M	H			M	H		M	H
Rated ultimate short circuit breaking capacity lcu (kA)		50	85	50	50	85	50	65	100	65	65	100	65	65	100	65
Rated operating short circuit breaking capacity lcs (kA)		35	50	35	35	50	35	42	65	42	42	65	42	42	65	42
Usage categories		A			A			B			B			B
Operation performance	Power on	3000			3000			2000			1500			1500
	No power	7000			7000			4000			3000			3000
Dimensions	L	150			165			257			280			280
	W	92		122	107		142	150		198	210		280	210		280
	H	92			90			106.5			115.5			115.5
Arcing distance		≤50			≤50			≤106.5			≤100			≤100