B/C/D Curve 1p 2p 3p 4p Mini Circuit Breaker MCB

• Customization: Available
• Breaking Capacity: Low Voltage Circuit Breakers
• Operation: Electric Type
• Model NO.: esm1
• Speed: Normal Type Circuit Breaker
• Arc-extinguishing Medium: Air
• Installation: DIN Rail
• Structure: MCB
• 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
• Voltage Ui: 500V AC
• Protection Degree: IP20
• Connection: Top and Bottom
• Over/Under Voltage Release: Yes
• Contact Position Indicator: Yes
• Transport Package: by Sea/Air
• Specification: box
• Trademark: Onccy
• Origin: China
• HS Code: 8536490090
• Production Capacity: 1000000PC/Year
• Package Size: 23.00cm * 9.50cm * 8.50cm
• Package Gross Weight: 1.200kg

Product Description

B/C/D Curve 1p 2p 3p 4p Mini Circuit Breaker MCB 

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.

Applications and Markets

AC mini circuit breakers (MCBs) are compact, modular protection devices designed for low voltage electrical systems. They are typically used in residential, commercial, and light industrial ,Backup Power System,Electric Vehicle Charging Stations and so on for the protection and control of electrical circuits.

Renewable Energy Systems: MCBs can be found in solar photovoltaic (PV) systems, wind turbines, and other renewable energy installations, where they protect inverters, charge controllers, batteries, and other components from overloads and short circuits.

 

Features and Benefits

Safety

AC Circuit breakers help prevent electrical fires and damage to electrical equipment by interrupting the flow of current in case of a fault.

Convenience

AC Circuit breakers can be easily reset after resolving the issue that caused the trip, unlike fuses that need to be replaced.

Selectivity

AC Circuit breakers can be designed to trip at different current levels, allowing for better coordination and isolation of faulty circuits in a system.

Reliability

AC Modern circuit breakers are designed to operate with high accuracy and minimal maintenance, ensuring the long-term protection of electrical systems.

 

 

ESM1-63(10KA) AC Circuit Breaker B/C/D curve 2P/3P/4P 415V~500V 63A 7.5KA

Product Benefits

• Choice to use Bus bar or cable in the same terminal, provides reliable connection.
• Two step snapping mechanism for easy & efficient mountion in 35mm DIN Rail steadily.
• Clear indication of the ON/OFFswitch status.
• IEC 60898 10KA
• MCB can 100% pass 10KA
• Over 20,000 cycles ,mechanical and electrical endurance operation

ESM1-63(10KA) AC Circuit Breaker MCB B/C/D curve 1P 240/415V~ 63A 10KA

Product Benefits

• Choice to use Bus bar or cable in the same terminal, provides reliable connection.
• Two step snapping mechanism for easy & efficient mountion in 35mm DIN Rail steadily.
• Clear indication of the ON/OFFswitch status.
• IEC 60898 10KA
• MCB can 100% pass 10KA
• Over 20,000 cycles ,mechanical and electrical endurance operation

ESM2-63 AC mini Circuit Breaker MCB B/C/D curve 1P 2P 3P 4P 63A 415V 6KA

Product Benefits

• Choice to use Bus bar or cable in the same terminal, provides reliable connection.
• Two step snapping mechanism for easy & efficient mountion in 35mm DIN Rail steadily.
• Clear indication of the ON/OFFswitch status.
• IEC 60898 10KA
• MCB can 100% pass 10KA
• Over 20,000 cycles ,mechanical and electrical endurance operation

Technical Data

Electrical Features
Rated current (In)	1-63A
Poles	1P 2P 3P 4P
Rated voltage (Ue)	1P: 240/415V~     2/3/4P:415~
Insulation voltage (Ui)	500V
Rated frequency	50/60Hz

 

Overload Current Protection Characteristics
Test Procedure	Type	Test Current	Initial State	Tripping or Non-tripping Time Limit	Expected Result	Remark
A	B.C.D	1.13In	Cold	t≤1h	no tripping
B	B.C.D	1.45In	After test A	t≤1h	tripping	The current steadily rise to the specified value within 5s
C	B.C.D	2.55In	Cold	1s<t<60s(In≤32A)   1s<t<120s(In>32A)	tripping
D	B	3In	Cold	t≤0.1s	no tripping	Turn on the auxiliary switch to close the current
	C	5In
	D	10In
E	B	5In	Cold	t≤0.1s	tripping	Turn on the auxiliary switch to close the current
	C	10In
	D	20In

 

Detailed Photos

 

 

ONCCY Electrical Co, Ltd as Professional Electrical Components Manufacturer for Solar PV, Battery Energy Storage and EV Charging System. 30+Years Of Production Experience and Service.ONCCY Electrical Co, Ltd main products are including DC and AC circuit breaker (MCB), DC and AC isolation switch DC molded case circuit breaker (MCCB), DC fuse, DC lighting surge protector (SPD) and so on.

With our driven engineer team, over 200+ global experts and distribution & service network spanning North America, South America, Europe, Asia, Africa and Oceania, ONCCY has empowered homeowners and professionals in more than 100 countries and regions to join the journey to true open energy. Now we are favored by the market as a trustworthy partner to our investors, installers and end consumers.


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.