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DW45 Air Case Circuit Breaker

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Applications

DW45 series intelligent air circuit breakers are applied for the network circuit of AC 50Hz, rated voltage 400V, 690V and rated current between 400A and 6300A. Mainly used for distributing energy and protecting the circuit and power supply device against short circuit, under voltage, single-phase ground fault, etc. The HW8 has intelligent protection function and the key parts adopt intelligent release. The release can make the accurate selective protection, which can avoid cutting off the power and improve the reliability of power supply.

The products conform to IEC60847-2, IEC60947-4 standards.



Advantages


Intelligent, zero arc, with isolation function;

High breaking and short-time tolerance;

With overload long delay, short circuit short delay, short circuit instantaneous and ground fault function (optional);

Drawer seat has three position indications of "connection", "test" and "separation";

CAN realize intelligent network monitoring, can be applied to Modbus, Profibus, Devicenet, CAN and TCP communication protocols, convenient for users to integrate management;

It can be equipped with FDM3 short message notification module to realize remote alarm and monitoring.


Main Technical Specifications


Type

Frame rated current     InmA

Rated current

InA

Rated

voltage

Ue V

Rated

insulation   voltage UiV

DW45-2000

2000

400, 630, 800, 1000, 1250, 1600, 2000

AC 400/690


800

DW45-3200

3200

2000, 2500, 2900, 3200

DW45-6300

6300

4000, 5000, 6300



Type

Breaking capacity 1cu kA

Rated run shortcircuit breaking capacity 1cs kA

Rated short-time current 1cw kA

Arcing distance mm(draw-out)

400V

690V

400V

690V

400V

DW45-2000

80

50

50

40

50


0

DW45-3200

100

65

80

50

65

DW45-6300

120

85

100

80

85


Current multiple

1.05Ir1

1.3Ir1

1.5Ir1

2.0Ir1

Tripping time

> 2h nont ripping

< 2h   ripping

Setting time tL

Tripping time in 1.05IrtL

15s

30s

60s

120s

240s

480s

8.4s

16.9s

33.7s

67.5s

135s

270s


Note:

1. When it has three protection, setting value cannot be cross

2. The ex-factor current setting value is Ir1=In1=In, Ir2=4In, Ir3=50kA and Ir4=0.2 in if there is no specifications on the contract.



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