Factory Price AC Circuit Breaker (AC MCB) Manufacturer with High Accuracy and Minimal Maintenance for PV

• Breaking Capacity: Low Voltage Circuit Breakers
• Operation: Electric Type
• Speed: Normal Type Circuit Breaker
• Arc-extinguishing Medium: Air
• Installation: DIN Rail
• Structure: MCB
• Model NO.: ESM
• Poles Number: 3
• Type: Circuit Breaker
• Function: Conventional Circuit Breaker, Circuit-Breaker Failure Protection, Overcurrent Protection, Solar Arrester Surge Protector
• Certification: CE, SAA
• ICU: 10ka
• Transport Package: by Sea/Air
• Specification: box
• Trademark: Onccy
• Origin: China
• HS Code: 8536490090
• Production Capacity: 1000000PC/Year

Product Description

AC Circuit Breaker Manufacturer

AC circuit breaker is an essential safety device used in electrical systems to protect electrical circuits from excessive current flow due to an overload or a short circuit.  AC Circuit breakers are typically used in residential, commercial, and industrial applications to maintain the safety and functionality of electrical systems.

The main components of an AC circuit breaker are:

Contacts: These are the conductive parts that allow the flow of current when the circuit breaker is closed (ON position) and interrupt the current flow when the circuit breaker is open (OFF position).

Bimetallic strip: This component is made from two different metals bonded together. The strip bends when heated due to the difference in thermal expansion coefficients of the metals. In the event of an overload, the heat generated by the excessive current causes the bimetallic strip to bend, triggering the circuit breaker to trip and interrupt the current flow.

Electromagnetic coil: This coil generates a magnetic field when current flows through it. If the current exceeds a certain threshold (as in the case of a short circuit), the magnetic field becomes strong enough to actuate the circuit breaker mechanism, causing it to trip and interrupt the current flow.

Arc extinguishing chamber: When the contacts separate during a trip, an electric arc forms between them. The arc extinguishing chamber helps to cool and extinguish the arc, preventing damage to the contacts and other components.

 

• Installation
  Contact position indicator	Yes
  Protection degree	IP20
  Reference temperature for setting of thermal element	30°C
  Ambient temperature	-5~+40°C and its average over a period of 24h does not exceed +35°C
  Storage temperature	-25~+ 70°C
  Terminal connection type	Cable/U-type busbar/Pin -type busbar
  Terminal size top/bottom for cable	25mm2
  Tightening torque	2.5N.m
  Mounting	On DIN rail FN 60715 (35mm) by means of fast clip device
  Connection	Top and bottom

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FAQ
Q: Are you trading company or manufacturer ?
A: We are manufacturer. We have 30,000 square meters of self-owned plant.

Q: Do you have any certificates?
A: Yes,we have UL, TUV, CB, SAA, CCC, CE and other certifications.

Q: How do we make a quick response to customer , 5 inquiry ?
A: Our professional team will reply you online or by email,Skype, whatsApp and so on.

Q: Do you have any exporting experience?Which countries did you export to before?
A: We have lots of exporting experience and customers in many countries,such as America, Japan,Australia,UAE,Canada,Vietnam,Turkey,Thailand,Russia,UK,etc.

Q:Can you supply samples for checking ?
A: Yes, we can supply samples, pls contact for detailed required.

Q:How long is your delivery time?
A: Generally it is within 3days for small qty. Or it is around 15-20 days to a general order.

Q: What is the standard of package of your goods?
A: Export standard package or special package according to customer requirement.

Q:How about inspection?
A: We have the whole inspection system from raw material to end products include transient test, delay test,mechanical life test and so on.Q:What is the service offered by company?

A: We have the professional engineer team which can design and develop the mould to arrive different customer requirements. We also have the professional sales team to offer good service from pre-sale to after-sale.