Molded case circuit breaker SMM5-630L with leakage protection air switch 3P 400A/630A household circuit breaker 400V from China manufacturer

This series of circuit breakers features a compact structure, small size, and high breaking capacity.
Compared to thermal-magnetic molded case circuit breakers, electronic circuit breakers not only have short-circuit and short-delay protection functions, but also all protection functions do not change with changes in ambient temperature.
The circuit breaker has adjustable rated current, adjustable long delay time for overload, adjustable current multiple for short-circuit short delay, adjustable short-circuit short delay action time, adjustable instantaneous current multiple, adjustable pre-alarm current multiple, and other characteristics.
The intelligent control panel has complete functions and is easy to operate. Users can adjust the settings of the trip unit according to the load current requirements.
The circuit breaker has indicators for operating current, current overload, and current pre-alarm.

◎ Ambient air temperature: a) The upper limit value shall not exceed + 40 ℃ b) The lower limit value shall not be lower than - 5 ℃

c) The average value of 24h shall not exceed + 35 ℃

◎ Altitude: The altitude of the installation site shall not exceed 2000m

◎ Atmospheric conditions: The relative humidity of the atmosphere shall not exceed 50% at the maximum ambient temperature + 40 ℃ ; It can have higher relative humidity at lower temperature; When the monthly average minimum temperature of the wettest month is + 25 ℃ , the monthly average maximum relative humidity of that month is 90%, taking into account the condensation on the product surface due to temperature change

◎ Class of pollution: The pollution level is 3, and the pollution level of accessories installed in the circuit breaker is 2

◎ Installation category:The main circuit of the circuit breaker shall be installation category III, and the auxiliary circuit and control circuit shall be installation category II

◎ Installation conditions: The circuit breaker shall generally be installed vertically, and the upper incoming line is usually adopted, and the external magnetic field of the installation site shall not exceed 5 times of the geomagnetic field in any direction

Model		100		250		400		630		800
Inm(A) Frame current		100		250		400		630		800
Breaking capacity level		M	H	M	H	M	H	M	H	M	H
Rated current		32(12~32) 100(40~100)		250(90~250)		400(160~400)		630(252~630)		800(320~800)
Pole		3,4
Rated insulation voltage		800
Rated working voltage		400
Rated impulse withstand voltage		8000
Limit short circuit breaking capacity		50	65	50	65	65	80	65	85	65	85
Operating short circuit breaking capacity		25	50	25	50	32.5	55	65	85	65	85
Operating short-circuit withstand current		5/0.5		5/0.5		5/0.5		20/1		20/1
Use category		A		A		B		B		B
Arcing distance		≯ 50				≯ 100
Operating performance	Power on ( second)	1500		1000		1000		1000		500
	No electricity ( second)	8500		7000		4000		4000		2500

It has the protection functions of overload long delay inverse time limit, short-circuit short delay inverse time limit, short-circuit short delay fixed time limit, short-circuit instantaneous action and so on. It can be set by the user to form the reverse protection characteristics.

漏电动作特性图 Leakage action characteristic diagram 63-250 断路器特性曲线 Circuit breakercharacteristic curve

63-250 外观尺寸 400-800外观尺寸 400-800漏电外观尺寸 400-800 断路器特性曲线 Circuit breakercharacteristic curve 漏电动作特性图 Leakage action characteristic diagram

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Molded case circuit breaker SMM5-630L with leakage protection air switch 3P 400A/630A household circuit breaker 400V

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