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With a focus on safety and reliability, this breaker combines a modular design with intelligent trip units, enabling precise protection in industrial and commercial applications. Its compact footprint and easy maintenance features make it suitable for space-constrained switchgear installations.
High Breaking Capacity: Capable of interrupting short-circuit currents up to 100kA (400V AC), ensuring safe operation in high-fault environments.
Microprocessor-Based Trip Unit: Offers adjustable protection settings for overload, short circuit, ground fault, and undervoltage, with self-diagnostic functions.
Arc Suppression Technology: Integral arc chutes and magnetic blowout coils minimize arcing, extending contact life and reducing maintenance needs.
Modular Design: Removable control units and interchangeable accessories allow quick replacement and system upgrades without downtime.
IP54 Protection: Dust-tight and protected against water splashes, suitable for harsh industrial environments.
The DW45 is primarily used in:
Power Substations: Protects transformers, generators, and feeder circuits in medium-voltage distribution systems.
Industrial Plants: Installed in motor control centers and switchboards to safeguard large electrical loads in steel mills, refineries, and chemical plants.
Commercial Buildings: Used in high-rise complexes and data centers for reliable power distribution and emergency backup systems.
Renewable Energy Grids: Controls power flow in solar and wind farms, ensuring grid stability during transient fault events.
Q: What voltage ratings are available for the DW45?
A: It supports AC voltages from 400V to 690V, with specific models available for 3-phase or single-phase systems.
Q: Can the trip unit be configured remotely?
A: Yes, optional wireless modules enable remote setting adjustments and fault monitoring via a dedicated control software.
Q: How often should the breaker be serviced?
A: Routine maintenance is recommended every 3-5 years or after 1,000 operations, depending on the severity of the operating environment.
Q: Is there a version with a built-in isolation switch?
A: Yes, combined breaker-isolator models are available for applications requiring a visible break in the circuit for safety maintenance.
Type |
Frame rated current InmA |
Rated current InA |
Rated voltage Ue V |
Rated insulation voltage UiV |
|
2000 |
400, 630, 800, 1000, 1250, 1600, 2000 |
AC 400/690 |
800 |
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DW45-3200 |
3200 |
2000, 2500, 2900, 3200 |
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DW45-6300 |
6300 |
4000, 5000, 6300 |
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Type |
Breaking capacity 1cu kA |
Rated run shortcircuit breaking capacity 1cs kA |
Rated short-time current 1cw kA |
Arcing distance mm(draw-out) |
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400V |
690V |
400V |
690V |
400V |
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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 |
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Tripping time |
> 2h nont ripping |
< 2h ripping |
Setting time tL |
Tripping time in 1.05IrtL |
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15s |
30s |
60s |
120s |
240s |
480s |
8.4s |
16.9s |
33.7s |
67.5s |
135s |
270s |
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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.
