DAB7N-40 series DPN Miniature Circuit breaker(MCB)
DAB7N-40 Series miniature circuit breaker adopts double-break point of 1P+N,the two poles are insulated and isolated from each other,under synchronous operation,N-pole always will make first and break later, which guarantees electric arc breaking capacity of protected pole, also ensures safety of controlled circuits and electric equipment.
•Two types of overcurrent protection – thermal and electromagnetic.
•Independent contact position indicator.
•DIN rail latch with a double fixed position.
•Wide range of operating temperatures from –40 to +50°С.
•Wide engagement lever with improved contact area.
•Notches on terminal clamps lower thermal losses and boost the mechanical stability of connection.
Electrical parameters of DAB7N-40 miniature circuit breaker
Standard of conformity: IEC60898, GB10963
Rated power: 50-60HZ
Rated voltage: 230V
Rated current: 40A
Rated insulation voltage: 500V
Impulse withstand voltage: 4KV
Endurance: no less than 180,000 times of on-off
Instantaneous trip type: B/C
Rated breaking capacity: 6
Release type: thermo-magnetic
Mechanical parameters of DAB7N-40 miniature circuit breaker
Protection grade: IP20
Electric wire: 1~35mm2
Working temperature: -5~+40℃
Flame retardant grade: grade2
Class of pollution: 2
Installation environment: Avoid obvious shock and vibration
Installation grade: grade II
Installation method: Using 35mm guide rail according to IEC standard
Terminal type: Dual-purpose terminal can be connected to the bus bar and conductor.
Terminal connection ability: conductor 1-25mm2, bus bar thickness 0.8-2mm
Guide rail: DIN35guide rail
For protection of general power distribution (IEC/EN 60898-1)
Functionsshort circuit protection,overload protection,isolationg,control
Rated frequency f （Hz）50-60Hz
Rated working voltage Ue（V）AC230
Rated current In ( A)40
Rated insulated voltage Ui( V)500
Impulse withstand voltage Uimp(kV)4
Instantaneous tripping typeB/C
Rated short circuit Icn(kA)DAB7-406
Release typeThermal magnetic type
Service life(O~C)MechanicalActual value12000
Connection and installation
Working temperature-5 ～+40℃
Resistance to humidity and heatClass 2
Altitude above sea≤2000
Relative humidity+20℃ , ≤90% ;+40℃ , ≤50%
Installation environmentAvoid obvious shock and vibration
Installation classClass Ⅱ , Class Ⅲ
Combination with accessories
Auxiliary contact+Alarm contactYes
High-strength cartons, pallet protection, good for long-distance export transport
Why choose us?
1.Already have a product made? Let us help streamline it! We can offer suggestions and recommendations for product usage to save cost on raw materials and/or production times!.
2.We pride ourselves on customer service and quality products.
3.Tracking of defects is part of our ISO 9001:2008 certification, and a core task assigned to our Quality Control department.
4.Our Production and Project managers, coupled with our in-house engineers can guide you through the process preventing unnecessary delays or roadblocks.
5.While each and every single one of our employees is subject to rigorous quality control focuses training, we currently have 5 dedicated QC employees and 1 dedicated QC Manager on staff at all times.
6.Tracking of defects is part of our ISO 9001:2008 certification, and a core task assigned to our Quality Control department.
7.Most of our customers provide us with product or packaging specifications right on their design prints. We would be happy to work with you to fulfill your requirements.
8.World famous electricity Power Gen exhibition
Our exhibition covers the world, Dubai, Brazil, Russia, Hanover, Egypt, Austria,Iran, Mexico and other professional power exhibitions
Q: How long is your delivery time?
A: Generally it will take 25 days upon receipt of order confirmation.If it is urgent order,we’ll negotiate to plug your order first but its better inform us as earlier as you can.
Q: Do you provide samples ? is it free or extra ?
A:The sample are free of charge, freight cannot be for free; After you order it, we can charge off from mass orders.
Q: What is your terms of payment ?
A: We accept TT,30% deposit and 70% balance against copy of BL
B. L/C at sight
Q: Can you accept OEM our brand ?
A: We accept OEM your brand, but it depends on your order quantity.
Q:What is your main market?Turnover?
A:Our main market is middle east,Europe,and turnover is roughly 20 million
USD per year.
Q:Do you have interest to do our own design items?
A:Absolutely!We have big interest!
Q:How many staffs in your company?
A:Roughly 300 in workshop, and 10 inspectors.
If you have any further questions, please let us know.Miniature Circuit Breaker