Durable MCCB 125A Circuit Breaker with 1000V Insulation Voltage Features

• Customization: Available
• Breaking Capacity: Low Voltage Circuit Breakers
• Operation: Manual Type
• Model NO.: DAM1-125
• Speed: High-Speed Circuit Breaker
• Arc-extinguishing Medium: Arc Chamber
• Installation: Fixed
• Structure: MCCB
• Poles Number: 3p, 4p
• Type: Circuit Breaker
• Function: Overcurrent Protection
• Certification: ISO9001-2000, CE, CB, CCC, Kema, Asta, Semko, RoHS
• Rated Insulation Voltage: 1000V
• Rated Operation Voltage: 400/415V
• Outline Dimension: 120X76X70mm
• Transport Package: Carton
• Specification: 12.5, 16, 20, 25, 32, 40, 50, 70, 80, 100, 125A
• Trademark: CDADA, OEM, ODM
• Origin: Shanghai, China
• HS Code: 8536200000
• Production Capacity: 40000PCS/Month

Product Description

Introduction

Introducing the DAM1 series circuit breakers, a pinnacle of safety and efficiency in electrical engineering. These breakers are meticulously crafted to maintain seamless current flow under standard conditions and execute flawless interruption during short circuits, overloads, and intolerable fluctuations. Designed for integration within electrical units, they operate at an operational voltage up to 400V, catering to a versatile range of rated currents from 12.5 to 1600A.

These circuit breakers meet the rigorous standards set by EN 60947-1 and EN 60947-2, ensuring unparalleled reliability and performance.

Thermal-Magnetic Circuit Breakers:

Thermal Protection Function: (Safeguarding against overload scenarios)
The thermal protection is ingeniously provided by a bimetallic component, a union of two metals with distinct thermal expansion properties. Upon being heated, the bimetal bends towards the metal with a lower expansion coefficient, thereby triggering a mechanism that facilitates the opening of the breaker. This phenomenon occurs in direct correlation with the current magnitude traversing through the breaker, as increased current results in heightened thermal activity. Consequently, this ensures that the breaker delivers exceptional overcurrent protection, engaging at load currents surpassing the rated threshold, thanks to this ingenious bimetal mechanism. Magnetic Protection Function: (Critical for safeguarding during short circuit incidents) Another pivotal role of these breakers is to provide robust protection for the connected circuits against the perils of short circuits. These incidents may arise due to the direct contact between phases or phase-to-ground interactions. Such events result in the flow of extraordinarily high currents through the cables, necessitating an immediate cessation of system energy flow. The thermal protection system ensures rapid interruption. The breaker is engineered to execute instantaneous disengagement, safeguarding the associated load. This vital function is empowered by a sophisticated mechanical opening mechanism engineered to actuate by utilizing the magnetic field generated by the short circuit current, offering unmatched protection and reliability in critical scenarios.
 

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		-