Intelligent 3p 125A MCCB Circuit Breaker for Outdoor Electrical Applications

• Customization: Available
• Breaking Capacity: Low Voltage Circuit Breakers
• Operation: Manual Type
• Model NO.: DAM1-125
• 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

The DAM1 series circuit breakers are expertly engineered to seamlessly conduct current during normal operations and reliably interrupt it during short circuits, overloads, or critical conditions such as inadmissible bucking. Designed for flawless operation in electrical units with an operative voltage up to 400V, they cater to a wide range of rated currents from 12.5A to an impressive 1600A.

Our products are meticulously crafted to align with the esteemed standards of EN 60947-1 and EN 60947-2, ensuring premium quality and unparalleled performance.

Thermal-Magnetic Circuit Breakers: The Pinnacle of Protection

Thermal Protection Function: (Expertly safeguarding against overload conditions)
Our bimetal technology offers exceptional thermal protection by utilizing a sophisticated blend of two metals, each with distinct heat expansion coefficients. Upon heating, the bimetal bends towards the lesser expanding metal, releasing a notch that masterfully triggers the breaker mechanism to disable the circuit. The bending speed of the bimetal is directly proportional to the current size passing through-higher currents translate to higher heat, enabling the bimetal to flawlessly execute overcurrent protection at load currents exceeding the rated parameters. Magnetic Protection Function: Unyielding Defense (Offering comprehensive protection during short circuit conditions) Another fundamental role of the breaker is to safeguard the connected circuits against short circuits. Such incidents may arise from the unintended contact between phases or between phase-ground interfaces. Given the extreme current surging through the cables during a short circuit, it is essential for the system energy to be interrupted swiftly due to the thermal protection protocols. The breaker must perform an instantaneous disconnection to safeguard the connected load. This essential function is executed by a precision-engineered mechanical opening mechanism that is activated through magnetization induced by the magnetic field generated by the short circuit current, ensuring rapid response and unwavering protection.
 

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		-