Electrical Switch MCCB 125A 3p Distribution Breaker with 400/415V Operation Voltage

• 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 meticulously engineered to conduct current in normal conditions and safely interrupt it during short circuits, overloads, or operational disruptions. These circuit breakers are ideal for use in electrical systems with an operating voltage of up to 400V and a rated current range from 12.5A to 1600A.

They comply with the stringent standards of EN 60947-1 and EN 60947-2, ensuring top-tier safety and performance.

Thermal-Magnetic Circuit Breakers:

Thermal Protection Function: (Protections against overload conditions)
Our thermal protection mechanism features a bimetallic strip composed of two metals with distinct thermal expansion rates. When heated, the bimetal bends towards the metal with a lower expansion rate, triggering a notch that disengages the breaker mechanism. The bending speed is directly proportional to the current flow, ensuring that overcurrent protection is effectively activated at currents exceeding the rated levels. This sophisticated system ensures your breaker provides reliable protection under overload conditions.
Magnetic Protection Function:For robust protection against short circuit conditions, another key function of our breaker is tosafeguard the connected circuit from shortcircuits, which may occur due to phase-to-phaseor phase-to-ground contact. In such events,extremely high currents flow through the cables,necessitating rapid system shut down. The breakermust operate swiftly to ensureload protection. Our breaker is designed toinstantly disconnect the load, thanks to amechanical opening mechanism that isactivated by the magnetic field generatedby the short circuit current.This sophisticated mechanism ensuresinstantaneous response, providing unparalleled protection for your system.

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		-