Distribution Breaker MCCB 3p 250A Rated Operation Voltage 400/415V

• 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 under normal conditions and adeptly interrupt it during short circuits, overloads, and inadmissible bucking. These breakers also facilitate operational activation and deactivation of electric circuit components. Perfectly suited for electric units with an operative voltage capped at 400V, they boast a rated current range from 12.5A to 1600A.

They adhere strictly to the stringent standards of EN 60947-1 and EN 60947-2.

Thermal-Magnetic Circuit Breakers:

Thermal Protection Function: (Designed for overload protection)
Our advanced bimetal thermal protection system incorporates two metals with differing thermal expansion rates. As the bimetal heats, it bends toward the metal with a lower expansion rate, thereby triggering a mechanism to open the breaker. The bending speed is directly proportional to the current magnitude, ensuring precise overcurrent protection by activating at load currents exceeding the rated capacity.
Magnetic Protection Function:(Engineered for short circuit protection) Another critical function of the breaker is tosafeguard the connected circuit against shortcircuits, which can occur due to phase-phase contact orphase-ground contact. During a short circuit,an extraordinarily high current surge flows through the cables.To prevent damage, the system's energymust be promptly interrupted, as thermal protection aloneis insufficient. The breaker mustinstantly activate to shield the connected load.This protection is ensured by amechanical opening mechanism,which is actuatedby the magnetization effect triggered by the short circuit current's magnetic field.

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