Cdada Dam1-125 MCCB Factory Moulded Case Circuit Breaker with Kema Asta Certification

Product Description

Introduction
The DAM1 series circuit breakers are intended for conducting current in normal mode and switching it off at short circuits, overload, inadmissible bucking as well as operational actuation and tripping of electric circuit parts. They are designed for use in electric units having the operative voltage limited to 400V per rated current from 12,5 to 1600A.
They correspond to the requirements of EN 60947-1, EN 60947-2
Thermal-Magnetic Circuit Breakers:
Thermal protection function:(For protection under over load conditions)
Bimetal, which provides thermal protection, consists of combination of two metals with different extension coefficients under heat. When bimetal is heated, it bends towards the metal with less extension. In this way, a notch that assists opening of the breaker mechanism is released to disable the breaker. Bending speed of bimetal is in direct proportion with size of the current passing through the breaker. Because, increase of current means increase of heat. In this way, over current protection function of the breaker is fulfilled by bimetal at load currents higher than the rated current Magnetic protection function (For protection under short circuit conditions) Another function of the breaker is to protect the connected circuit against short circuits. Short circuit may occur as a result of contact of phases with each other or contact of phase-ground. Since a very high current shall pass through the cables in case of short circuit, system energy should be broken in a shorter time due to thermal protection. Breaker should perform instant opening to protect load it is connected to. The part fulfilling this function is a mechanical opening mechanism that operates with magnetization caused by the magnetic area formed by the short circuit current

Thermal-Magnetic fixed type Circuit Breakers
Model			DAM1-125
Breaking Capacity Code			B	N	S
Rated Current of Frame size- Inm (A)			125A
Rated Current-In(40,50 or 55ºC) (A)			10 - 12,5 - 16 - 20 - 25 - 32(30) - 40 - 50 - 63(60) - 80 - 100 - 125A
Rated İnsulation Voltage -Ui(a.c.) 50-60Hz (V)			750V
Rated operation Voltage -Ue(a.c.) 50-60Hz (V)			400V
Number of Pole			3P / 4P
Rated ultimate short Circuit breaking Capacity kA Icu AC400V/50Hz O-CO (KA)			25	35	50
Rated service short Circuit breaking Capacity kA Ics AC400V/50Hz O-CO-CO (KA)			12.5	17.5	37.5
Rated short-circuit breaking capacity Icm(peak)/cos ф AC400V/50HZ O-CO (KA)			40/0.3	73.5/0.25	105/0.25
Rated impulse withstand Voltage -Uimp (V)			10000
Dielectric Propery (V)			2500
lonization distance (mm)			≤30/0
Endurance	Total Cycles		8000
	Electrical Life		1000
	Mechanical Life		7000
Over Current trip	Thermal and Magnetic release fix type		√
Category (EN 60947-2/IEC 60947-2)	Main circuit		A/0
	Auxiliary circuit		AC-15
Under Voltage Release			√
Shunt Release			√
Auxiliary Contact			√
Alarm Contact			√
Auxiliary Contact and Alarm Contact			√
Handle Operation Mechanism			√
Electrical Operastion Mechanism			√
DIN clips			√
Terminal cover			√
Phase seperator			√
Extention Handle			-
	W (mm)	3P	76
		4P	101
	L (mm)	3P	120
		4P	120
	H (mm)	3P	70
		4P	70
Weight	Fixed version 3P/4P		0.92/1.3
	Plug-in version 3P/4P		1.2/1.5
	Draw out version 3P/4P		-

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