Three Phase Moulded Case Circuit Breaker with 1000V Insulation

• Customization: Available
• Breaking Capacity: Low Voltage Circuit Breakers
• Operation: Manual Type
• Model NO.: DAM1-250
• Poles Number: 3
• Type: Circuit Breaker
• Function: Conventional Circuit Breaker, Circuit-Breaker Failure Protection, Overcurrent Protection
• Certification: ISO9001-2000, CE, CB, CCC, Asta, Semko, RoHS
• Base: BMC Unflaming Material
• Rated Insulation Voltage: 1000V
• Rated Operation Voltage: 400/415V
• Outline Dimension: 170X105X103.5mm
• Transport Package: Carton
• Specification: 63, 80, 100, 125, 160, 200, 250, 315A
• Trademark: CDADA, OEM, ODM
• Origin: Shanghai, China
• HS Code: 8536200000
• Production Capacity: 20000PCS/Month

Product Description

Introduction

The DAM1 series circuit breakers are meticulously engineered to conduct current seamlessly under normal conditions and to interrupt it promptly during short circuits, overloads, or any inadmissible fluctuations. These advanced circuit breakers also facilitate operational actuation and the tripping of electric circuit parts. Designed for electric units with an operative voltage of up to 400V, they support a wide range of rated currents from 12.5A to an impressive 1600A.

Our products meet and exceed the rigorous standards set by EN 60947-1 and EN 60947-2, ensuring unparalleled reliability and safety.

Thermal-Magnetic Circuit Breakers:

Thermal Protection Function: (For safeguarding under overload conditions)
The thermal protection is powered by a bimetal component, which ingeniously combines two metals with distinct thermal expansion coefficients. When subjected to heat, the bimetallic strip bends towards the metal with a lower expansion rate, activating a notch that triggers the breaker mechanism to disconnect the circuit. The bending rate of the bimetal is directly proportional to the current flowing through the breaker, as increased current leads to increased heat. This mechanism ensures effective overcurrent protection by the bimetal at load currents exceeding the rated current.
Magnetic Protection Function:(For safeguarding under short circuit conditions) Another critical function of the breaker is toprotect the connected circuit against shortcircuits, which may occur due tocontact between phases orcontact between a phase and the ground. Given that a short circuit results in amassive current surge through the cables, the system's energymust be rapidly cut off to prevent thermaldamage. The breaker must perform an instantaneous disconnect to safeguard the loadit is connected to. This critical function is achieved by a mechanical openingmechanism that operates throughmagnetization induced by the magnetic field generated by the short circuit current.The efficiency of thismechanism ensures reliable protection,maintaining the integrity of your electrical systems in the event of short circuits.

Thermal-Magnetic fixed type Circuit Breakers
Model			DAM1-250
Breaking Capacity Code			N	S	H	G
Rated Current of Frame size- Inm                                                                    (A)			250A
Rated Current-In(40,50 or 55ºC)                                                                      (A)			63 - 80-100-125 - 160(180) -  200(225) - 250(320)A
Rated İnsulation Voltage -Ui(a.c.) 50-60Hz                                                    (V)			750V
Rated operation Voltage  -Ue(a.c.) 50-60Hz                                                    (V)			400/415V
Number of Pole			3P /4P
Rated ultimate short Circuit breaking Capacity  kA  Icu AC400V/50Hz O-CO          (KA)			35	50	65	85
Rated service short Circuit breaking Capacity  kA  Ics AC400V/50Hz O-CO-CO     (KA)			26.25	37.5	48.75	51
Rated short-circuit breaking capacity Icm(peak)/cos ф AC400V/50HZ O-CO         (KA)			77/0.25	114/0.25	143/0.2	178/0.2
Rated impulse withstand Voltage -Uimp                                                                            (V)			8000
Dielectric Propery (V)			3000
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/B
	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	105
		4P	140
	L (mm)	3P	170
		4P	170
	H (mm)	3P	103.5
		4P	103.5
Weight	Fixed version 3P/4P		2.7/3.5		41.5/5.5
	Plug-in version 3P/4P		3.2/4.2		4.6/6
	Draw out version 3P/4P		3.6/4.6		5/6.4