DAA Air Circuit Breaker
DAA series Low Voltage Air circuit breaker air circuit breaker is suitable for the circuit of AC 50Hz/60Hz with rated service voltage 400V, 690V and rated service current up to 6300A.It is mainly used to distribute electric energy and protect circuits and electric equipment against over-load, under-voltage, short-circuit and single-phase earthing fault.
With intellectualized and selective protection functions, the breaker can improve the reliability of power supply, and avoid unnecessary power failure.The breaker is applicable for power stations, factories, mines (for 690V) and modern high- buildings, especially for the distribution system of intellectualized building.
With intellectualized and selective protection functions, the breaker can improve the reliability of power supply, and avoid unnecessary power failure.The breaker is applicable for power stations, factories, mines (for 690V) and modern high- buildings, especially for the distribution system of intellectualized building.
5.0
design customization
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Please fill out the form below to request a quote or to request more information about us. please be as detailed as possible in your message, and we will get back to you as soon as possible with a response. we're ready to start working on your new project, contact us now to get started.
Specifications
· Normal installation conditions
>> The circuit breakers DAA all be installed in accordance with the manufacturer’s instructions.
The vertical inclination of the circuit breakers DA All not exceed 5°
· Installation category
2000 drawer
2000 fixed type
3200 drawer type
| Rated operational voltage | 380/400V | 660/690V |
| Installation category | ||
| Electric circuit | ||
| Main circuit | IV | IV |
| Coil of under voltage release | ||
| Primary coil power transformer | ||
| Auxiliary circuit | III | III |
| Degree of protection | Installation method | Accessories |
| IP30 | Normal open mounting | |
| IP40 | Mounted in a compartment of cubicle with additional door frame | Door frame to be mounted by user |
| IP54 | Mounted in a compartment of cubicle with additional door frame and transparent cover | Door frame and transparent cove to be mounted by user |
| Type | DAA1-1000 | DAA1-2000 | DAA2-3200 | DAA3-4000 | DAA4-6300 | |
| Frame rated | 1000 | 2000 | 3200 | 4000 | 6300 | |
| current Inm(A) | ||||||
| Number of poles | 3,4 | 3,4 | 3,4 | 3,4 | 3,4 | |
| Rated current In(A) | 200,400,630,800,1000 | 400,630,800,1000,1250,1600,2000 | 2000,2500,3200 | 4000 | 50,006,300 | |
| Icu(kAO-co | 40 OV | 42 | 80 | 100 | 100 | 120 |
| 69 OV | 25 | 50 | 65 | 65 | 85 | |
| Ics(kA)O-Co-co | 40 OV | 30 | 50 | 65 | 65 | 100 |
| 69 OV | 20 | 40 | 50 | 50 | 80 | |
| IcwlkA)o-co | 40 OV | 20 | 50 | 65 | 65/80(MCR) | 85/100(MCR) |
| 69 OV | 20 | 40 | 50 | 50/65(MCR) | 65/75(MCR) | |
| Rated current at N-pole In(A) |
50%ln,100%ln | |||||
| Inherent making& breaking time |
23-32ms | |||||
| Operational peformance (operations) |
Electric life |
500 | ||||
| Mechanical life | 9500 | |||||
| Mounting mode | Fixed with draw-able | |||||
| Arcing distance(mm) | 0 | |||||
| Intelligent controller | Standard type(M) Telecommunication type (H) | |||||
| Long delay | short delay | Instantaneous | Ground Fault | |||||
| Ir1 | Ir2 | error | Ir3 | error | error | Ir4 | error | |
| (0.4-1)In | (0.4-15)In | ±10% | In~50kA(Inm=2000A) In~75kA(Inm=3200~4000A) In~100kA(Inm=6300A) |
±15% | ±15% | Inm=2000~4000A (0.2~0.8)In Max 1200A, Min 160A |
Inm=6300A (0.2-1.0)In |
±10% |
| 1.05Ir1 | 1.3Ir1 | 1.5Ir1 setting time (s) | 15 | 30 | 60 | 120 | 240 | 480 |
| ＞2h non-operation | ＜1h opetation | 2.0Ir1 opetation time (s) | 8.4 | 16.9 | 33.7 | 67.5 | 135 | 270 |
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Contact Us
Get in touch with us
Just leave your email or phone number in the contact form so we can send you a free quote for our wide range of designs!
0086 173 1658 0160
yjq@cdada.com
171 Yezhuang road, Fengxian District, Shanghai, China
Shanghai DADA Electric Co., Ltd.
Acknowledged as one of the most respected nationwide manufacturers and exporters of low voltage circuit breakers in China.
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CONTACT US
Contact Person: Joker Yang
Tel: +86 173 1658 0160
Email: yjq@cdada.com
Contact Person: Charlotte Weng
Tel: +86 151 6747 7792
Email: charlotte.weng@cdada.com
Address: 171 Yezhuang Road, Fengxian District, Shanghai, China