• Dam1-400 3p 250-400A Semko Approved Molded Case Circuit Breaker

Dam1-400 3p 250-400A Semko Approved Molded Case Circuit Breaker

Breaking Capacity: Low Voltage Circuit Breakers
Operation: Manual Type
Speed: Normal Type Circuit Breaker
Arc-extinguishing Medium: Arc Chamber
Installation: Fixed
Structure: MCCB
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Basic Info.

Model NO.
DAM1-400
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
Thermal Adjustable
0.7-1in
Transport Package
Carton
Specification
250, 315, 400A
Trademark
CDADA, OEM, ODM
Origin
Shanghai, China
HS Code
8536200000
Production Capacity
15000PCS/Month

Product Description


Introduction

The DAM1 series circuit breakers are intended for conducting current in normal mode and switching it off at short circuits, overload, inadmissible bucking as well as operational actuation and tripping of electric circuit parts. They are designed for use in electric units having the operative voltage limited to 400V per rated current from 12,5 to 1600A. 

They correspond to the requirements of EN 60947-1, EN 60947-2 


Thermal-Magnetic Circuit Breakers:

Thermal protection function:(For protection under over load conditions) 
Bimetal,  which provides thermal protection, consists of combination of two metals with different extension coefficients under heat. When bimetal is heated, it bends towards the metal with less extension. In this way, a notch that assists opening of the breaker mechanism is released to disable the breaker. Bending speed of bimetal is in direct proportion with size of the current passing through the breaker. Because, increase of current means increase of heat. In this way, over current protection function of the breaker is fulfilled by bimetal at load currents higher than the rated current 
Magnetic protection function (For protection under short circuit conditions) Another function of the breaker is to protect the connected circuit against short circuits. Short circuit may occur as a result of contact of phases with each other or contact of phase-ground. Since a very high current shall pass through the cables in case of short circuit, system energy should be broken in a shorter time due to thermal protection. Breaker should perform instant opening to protect load it is connected to. The part fulfilling this function is a mechanical opening mechanism that operates with magnetization caused by the magnetic area formed by the short circuit current

 
Thermal-Magnetic fixed type Circuit Breakers  
Model DAM1-400
Breaking Capacity Code N S H G
Rated Current of Frame size- Inm                                                                    (A) 400A
Rated Current-In(40,50 or 55ºC)                                                                      (A) 250 - 315 (350)- 400 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 70 85
Rated service short Circuit breaking Capacity  kA  Ics AC400V/50Hz O-CO-CO     (KA) 26.25 37.5 52.5 52.5
Rated short-circuit breaking capacity Icm(peak)/cos ф AC400V/50HZ O-CO         (KA) 70/0.25 110/0.25 154/0.2 187/0.2
Rated impulse withstand Voltage -Uimp                                                                            (V) 8000
Dielectric Propery (V) 3000
lonization distance                                                                                                              (mm) 60/0
Endurance Total Cycles 5000
Electrical Life 1000
Mechanical Life 4000
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 140
4P 184
L (mm) 3P 254
4P 254
H (mm) 3P 103.5
4P 103.5
Weight Fixed version 3P/4P 5.1/7.1
Plug-in version 3P/4P 6.5/8.5
Draw out version 3P/4P 6.5/8.7


Dam1-400 3p 250-400A Semko Approved Molded Case Circuit Breaker
Dam1-400 3p 250-400A Semko Approved Molded Case Circuit Breaker
Dam1-400 3p 250-400A Semko Approved Molded Case Circuit Breaker
Dam1-400 3p 250-400A Semko Approved Molded Case Circuit Breaker
Dam1-400 3p 250-400A Semko Approved Molded Case Circuit Breaker
Dam1-400 3p 250-400A Semko Approved Molded Case Circuit Breaker
Dam1-400 3p 250-400A Semko Approved Molded Case Circuit Breaker
Dam1-400 3p 250-400A Semko Approved Molded Case Circuit Breaker
Dam1-400 3p 250-400A Semko Approved Molded Case Circuit Breaker
Dam1-400 3p 250-400A Semko Approved Molded Case Circuit Breaker
Dam1-400 3p 250-400A Semko Approved Molded Case Circuit Breaker

Dam1-400 3p 250-400A Semko Approved Molded Case Circuit Breaker

 

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