Arm5 Series Double-Break Molded Case Circuit Breakers MCCB Arm5-400-4300 4poles 400AMP

• Customization: Available
• Breaking Capacity: Low Voltage Circuit Breakers
• Operation: Manual Type
• Model NO.: Arm5-400-4300
• Arc-extinguishing Medium: Air
• Structure: MCCB
• Poles Number: 4
• Type: Circuit Breaker
• Function: Conventional Circuit Breaker, Circuit-Breaker Failure Protection, Overcurrent Protection, OVP(Overvoltage Protection), RCCB
• Certification: ISO9001-2000, CCC
• Transport Package: Carton
• Specification: 185*255*169
• Trademark: AceRreare/OEM/ODM
• Origin: China
• HS Code: 853620
• Production Capacity: 500

Product Description

Product Description

^{Product Overview}

     ARM5 series plastic case circuit breaker (hereinafter referred to as circuit breaker) is the latest new product developed by our company. Its design reflects the latest current limiting principle and manufacturing technology, and has the characteristics of small and compact, modular, high breaking, zero flying arc, green and environmental protection. The circuit breaker is suitable for connecting, breaking and carrying rated current in circuits with dry AC 50Hz/60Hz, rated insulation voltage of 1000V, maximum rated working voltage of 690V, rated current of 32A-630A, and can provide reliable protection for lines and power-using equipment in case of overload, short circuit and under-voltage. It can also be used as infrequent starting and overload, short-circuit and under-voltage protection for motors. The circuit breaker can be installed vertically (i.e., vertical installation), horizontally (i.e., horizontal installation), and also down into the line. The circuit breaker has an isolation function and its corresponding symbol: "".

 

 

Main functions and features

Pneumatic protection device

In case of short circuit and large current in the circuit, the gas in the contact unit box will be rapidly pressurized, and the pneumatic protection device will quickly pull the operating mechanism to lock under strong air pressure, greatly reducing the damage of short circuit current to other electrical components and buses.	Magnetic blowout design: the current flows through the fixed contact to generate an electromagnetic source, which forms an annular magnetic field with the iron core. The arc quickly enters the arc extinguishing chamber under the action of the magnetic field, which is conducive to quickly break the current.
The reasonable structure design of moving and fixed contacts makes the short circuit peak value and energy I²t in the protection circuit of this series of products far less than the expected value.
Working principle: the current flows in from the fixed contact    1, flows out from the fixed contact    2 through the moving and fixed silver contact and the moving contact. The moving contact quickly disconnects under the action of strong electric repulsion force (Holm force and Lorentz force) to improve the breaking speed.
Air blowing design: when short circuit and large current occur in the circuit, gas producing parts produce gas under the high temperature of the arc, the air pressure in the contact unit box increases rapidly, and high-speed air flow can be formed through the air outlet of the arc extinguishing chamber, which can effectively extinguish the arc.

 

Product Parameters

Basic Info.

Model

Inm (A)

Rated current (In)

Type of use

Poles

Ue

Icu

Ics

Ue

Icu

Ics

Ui

Uimp

Mechanical Endurance

Electrical safe lif

Flashover distance (mm)

ARM5-400L

400A

250A,315A,350A,400A

A Class

3P

400V/415V

85KA

85KA

550V/690V

35KA

35KA

1000V

12KV

7000

1000

0

ARM5-400L

400A

250A,315A,350A,400A

A Class

4P

400V/415V

85KA

85KA

550V/690V

35KA

35KA

1000V

12KV

7000

1000

0

ARM5-400M

400A

250A,315A,350A,400A

A Class

3P

400V/415V

150KA

150KA

550V/690V

50KA

50KA

1000V

12KV

7000

1000

0

ARM5-400M

400A

250A,315A,350A,400A

A Class

4P

400V/415V

150KA

150KA

550V/690V

50KA

50KA

1000V

12KV

7000

1000

0

ARM5-400H

400A

250A,315A,350A,400A

A Class

3P

400V/415V

200KA

200KA

550V/690V

65KA

65KA

1000V

12KV

7000

1000

0

ARM5-400H

400A

250A,315A,350A,400A

A Class

4P

400V/415V

200KA

200KA

550V/690V

65KA

65KA

1000V

12KV

7000

1000

0

 

Model	Rated current (In)	Poles	Structure size	Dimensions (W*L*H1 )	Dimensions (W*L*H2 )
ARM5-400L	250A,315A,350A,400A	3P		141*256.5*169	141*256.5*123.5
ARM5-400L	250A,315A,350A,400A	4P		185*256.5*169	185*256.5*123.5
ARM5-400M	250A,315A,350A,400A	3P		141*256.5*169	141*256.5*123.5
ARM5-400M	250A,315A,350A,400A	4P		185*256.5*169	185*256.5*123.5
ARM5-400H	250A,315A,350A,400A	3P		141*256.5*169	141*256.5*123.5
ARM5-400H	250A,315A,350A,400A	4P		185*256.5*169	185*256.5*123.5

 

Detailed Photos

FAQ

1.Q: Are you trading company or manufacturer ?

   A: We are manufacturer and specializing in manufacturing good quality of MCCB.

2.Q: How long is your delivery time?
   A: Normally 5-10 days if there are goods in stock. Or it will take 15-20 days. For customized   items, the delivery time depends.

3.Q: What is your terms of payment ?
   A: 30% T/T in advance ,and the balance before shipment.
 
4.Q : Can you make customized products or packing?
   A: Yes.We can offer customized products and packing ways can be made according to customer's requirement.

5.Q: Can you offer mould making services?
A: We have made many mould for different customers for years.Wecan offer DMC Thermosetting Compressionmoulding,Thermoplastic injection moulding,Metal stamping moulding.

6.Q: How about the guarantee period?
A: It varies according the different kinds of product. We can negotiate it before place an order.

7.Q: What is your production capacity?
   A: We can produce 3000  sets per month.

8.Q: How about the scale of your factory?
   A: Our total area is 7000 square meter. We have 300staffs, .40 engineers.
9.Q: What tests do you have to confirm the quality of the arc chamber?
   A: We have a incoming inspection for the raw material and process inspection for the rivet and stamping. There is also final statistical audit which consisting the measurement of sizes, tensile test and coat examine.

10.Q: What are the countries you have exported to?
A: We have not worked directly with foreign customers before, we provide ODM and OEM services for brands in China and then they take our products and sell them to foreign customers, basically to Europe and the Middle East.
11,Q: Your products are really good, but we have seen the same circuit breakers on the market nearby and their prices are much cheaper than yours.
A: First of all, I would like to emphasise that the price is definitely proportional to the quality. If you are a buyer, you must know that the materials and treatment processes used in our products are better than those of our peers, and the quality is recognised in the same industry. Our factory has a thermosetting workshop, thermoplastic workshop, welding workshop, hardware stamping workshop and assembly workshop, and the rate of self-made parts is as high as 80%. We have also built a new factory in Wuhu to guarantee the supply of parts for us, so that the parameters and various technical indicators such as mechanical life, Icu, Ics, etc. are very stable, and the match between parts is very high, and the service life of the finished product is also very long, which is They can be used in high-end industrial areas and hospitals, where the quality of the circuit breakers is very high. We also have our own technology patents and a very professional R&D team of 30-40 engineers to respond to the various needs of our customers, the development cycle of new products only takes 30-40 days, in the process, unconditionally provide you with technical expenses, we can greatly reduce the cost of communication and research and development costs. if particularly urgent, I can apply to my superiors to set up a customer line for you, specifically for you to assemble MCCB.