DW2-1600 Air Circuit Breaker Manufacturer

DW2 Air circuit breaker

Model: DW2-1600

Shell ass Rated Current Inm(A): 1600

Rated insulation voltage Ui(V): 1000

Rated impulse withstand voltage Uimp(kV): 12

Description

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Scope of Application

DW2-1600 universal circuit breaker has the characteristics of small size,high breaking capacity,multi-function and so on.

DW2-1600 is suitable for grid-connected operation and protection of general power distribution system,new energy power generation and distribution system,multi-power distribution network,inverter and distributed power rotary motor power supply.

DW2-1600 conforms to the circuit breaker class standard GB/T14048 .2 --Class B use category,AC-3 use category:

◎ Circuit breaker is suitable for AC 50Hz/60Hz rated working voltage 400V/690V

◎ Circuit breaker rated current 200A~1600A

◎ The circuit breaker has three and four poles

◎ With drawer type and fixed type

◎ Refundable wire connection with isolation function,symbol is "

◎ Circuit breakers meet the following standards:

IEC60947-1 and GB/T14048 .1-2012 Low voltage switchgear and control equipment General

IEC60947-2 and GB/T14048 .2-2020 Low voltage switchgear and control equipment circuit breakers

IEC60947-4-1 and GB/T14048 .4 Low voltage switchgear and control equipment Electromechanical contactors and motor starters (including motor protectors)

Application Scenarios

The DW2 Series Air Circuit Breaker is designed for low-voltage power distribution systems requiring high breaking capacity, reliable protection and safe circuit isolation. It is suitable for AC 50Hz/60Hz power networks with rated operating voltages up to 690V and rated currents from 200A to 1600A.

With its compact structure and comprehensive protection functions, the DW2 series is widely used as an incoming breaker, bus coupler breaker or feeder breaker in various power distribution applications. It provides reliable protection against overload, short circuit and other electrical faults while ensuring continuous and stable power supply.

Industrial Power Distribution

Widely used in factories, manufacturing plants, mining operations and industrial automation systems for power distribution and equipment protection.

Renewable Energy Systems

Suitable for photovoltaic power stations, wind power systems, energy storage projects and inverter output distribution systems.

Commercial Buildings

Applied in shopping malls, office buildings, hotels, hospitals and public facilities where reliable low-voltage power distribution is required.

Utility and Infrastructure Projects

Installed in substations, distribution stations, water treatment facilities, transportation systems and municipal infrastructure projects.

Motor and Equipment Protection

Used in motor control centers (MCC), power distribution cabinets and large electrical equipment to provide switching, isolation and protection functions.

Normal working conditions

The ambient air temperature is -5 ℃~+40℃(beyond the range can be reduced);

The elevation of the installation site does not exceed 2000m;

The relative humidity of the air at the installation site does not exceed 50%at the maximum temperature of +40 °C,and can have a higher phase humidity at lower temperatures, such as 90% at 20 ° C. Special measures should be taken for occasional condensation due to temperature changes;

Pollution level is 3;

The installation category of the main circuit of the breaker is IV,and the installation category of the other auxiliary circuits and control circuits isⅢ;

The circuit breaker should be installed in a place where there is no danger of explosion, no conductive dust, no enough to corrode metal and destroy insulation;

The circuit breaker should be installed in a place where there is no rain or snow;

Operational conditions

The circuit breaker passes the test requirements of GB/T14048 .2,and the altitude is 2000m(more than 2000m capacity reduction);

Storage conditions:ambient air temperature is -5 ℃~+40℃.

Structural features

Compact and High-Performance Design

Features a compact structure with high breaking capacity, making it suitable for modern low-voltage distribution systems.

Comprehensive Protection Functions

Provides reliable overload, short-circuit and fault protection to ensure safe operation of electrical equipment and distribution networks.

Fixed and Draw-Out Versions Available

Available in both fixed-mounted and withdrawable configurations to meet different installation and maintenance requirements.

Reliable Isolation Function

Equipped with a visible isolation function for safer maintenance and operation of power distribution systems.

Multi-Pole Configuration

Available in 3-pole and 4-pole versions to suit different distribution applications.

Optimized Contact and Arc Extinguishing System

Designed to achieve fast fault interruption, improve electrical endurance and enhance operational reliability.

Easy Installation and Maintenance

Modular construction allows convenient installation, inspection and replacement of components.

Compliance with International Standards

Manufactured in accordance with IEC 60947-2 and GB/T 14048.2 standards for low-voltage circuit breakers.

Product Model and Its Meaning
DW2 Air circuit breaker

Technical Parameters

Model			DW2-1600
Shell ass Rated Current Inm(A)			1600
Rated caurent In(A)			200、400、630、800、1000、1250、1600
Rated operating votage UelV)			AC50Hz/60Hz 400、690
Rated insulation voltage Ui(V)			1000
Rated impulse withstand voltage Uimp(kV)			12
Power frequencywithstand voltage UM)1min			3500
Number of poles			3、4
N-Pole Rated curentIn(A)			100%In
Using categonies			B
			AC-3
Rated limit short-circuit breaking capacity	AC400V		65
lcu(kA)(valid value)	AC690V		50
Rated operating short-circuit breaking capacity	AC400V		55
IcskA(vald value)	AC690V		42
Rated Short-Circuit Making Capacity	AC400V		143
lem(kA)(peak value)	AC690V		105
Rated short-time withstand current (1S)	AC400V		50
The lcw(kA)(valid value)	AC690V		42
Totalinteruption time (without aditional delay)(ms)			≤30
Qosing time (ms)			≤70
EleciclLfe (cycles)	AC400V	In=200A~630A	1500
		In=800A~1250A	1000
		In=1600A	800
	AC690V	In=200A~630A	1000
		In=800A~1250A	650
		In=1600A	500
Mechaniclife(ydes)	Maintenance-free		15000
	Maintenance ongoing		20000
Externaldimensions	Fxed type	3P	260×310×240
(W×H×Dmm		4P	330×310×240
	Drawer type	3P	275×345×330
		4P	345×345×330