Advanced Moulded Case Circuit Breaker 3p 250A for Efficient Use

• Customization: Available
• Breaking Capacity: Low Voltage Circuit Breakers
• Operation: Manual Type
• Model NO.: DAM1-250
• Arc-extinguishing Medium: Arc Chamber
• Installation: Fixed
• Structure: MCCB
• 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 exceptional DAM1 series circuit breakers are meticulously designed for seamlessly conducting current in normal operations. They offer unparalleled reliability in switching off during short circuits, overloads, and inadmissible bucking. These breakers are also proficient in operational actuation and tripping of electric circuit segments. Perfectly suited for electric units with an operative voltage capped at 400V and a rated current range spanning 12.5 to 1600A.

Fully compliant with the stringent standards of EN 60947-1 and EN 60947-2, ensuring quality and safety.

Thermal-Magnetic Circuit Breakers:

Thermal Protection Function: (Designed for safeguarding under overload conditions)
A sophisticated bimetal, fundamental for thermal protection, is crafted from two metals with distinct expansion coefficients when heated. Upon heating, the bimetal elegantly bends towards the metal with a lesser extension coefficient. This precise movement releases a notch that facilitates the opening of the breaker mechanism, effectively disabling the breaker. The bending speed of the bimetal is intricately linked to the magnitude of the current traversing the breaker, as an increase in current correlates with a rise in heat. Consequently, the bimetal impeccably fulfills the overcurrent protection function at load currents exceeding the rated threshold. Magnetic Protection Function: Providing essential protection under short circuit conditions, this function of the breaker is engineered to safeguard the connected circuit against the damaging effects of short circuits. Such conditions may arise due to contact between phases or between phase and ground. In the event of a short circuit, a substantial surge of current flows through the cables, necessitating a swift disconnection of system energy via thermal protection. The breaker must act instantaneously to shield the load it is connected to. This critical function is performed by a mechanical opening mechanism, operating through the magnetization induced by the magnetic field generated by the short circuit current.

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