Xinchi Electric Co., Ltd. >> Molded Case Circuit Breaker 400AMP MCCB 3 Pole

Molded Case Circuit Breaker 400AMP MCCB 3 Pole

Molded Case Circuit Breaker 400AMP MCCB 3 Pole
Price: Negotiable/Piece
Trade Terms: FOB,CFR,CIF
Min Order: 1/Piece
Pay Type: L/C,T/T,Western Union,Paypal
Markets: North America,South America,Eastern Europe,Southeast Asia,Africa,Oceania,Mid East,Eastern Asia,Western Europe
Rated Working Voltage: 690V
Certificate: CE-LVD, RoHS
Brand Name: Suntree
Frequency: AC 50Hz (60Hz)
All Standard: IEC947-2
Type: Circuit Breaker
Function: Ovp(Overvoltage Protection)
Arc-extinguishing Medium: Air
Breaking Capacity: Low Voltage Circuit Breakers
Certification: CE
Operation: Manual Type
Installation: Fixed
Speed: Normal Type Circuit Breaker
Structure: Moulded Case Circuit Breaker
Poles Number: 3p, 4p

Product Description

Molded Case Circuit Breaker 400AMP MCCB 3 Pole

Keyword:1P,3P(3P+N),4Pole, Apply for isolator switch, Electric and thermal magnetic tripping
 device,

Provide miniature circuit breaker lockouts,Similar Tmax.

Application of (SM8max)  MCCB 

The SM8max  T1 1p, T1, T2, T3, Ts3, T4, T5 and T6 circuit breakers can be fitted with thermal 

magnetictrip units and are used in protection of alternating and direct current networks with a range of 

use from15 A to 800 A. They allow the protection against overload with a thermal device (with fixed threshold 

forT1 1p, T1, T2, T3, Ts3, T4 and adjustable threshold for T4, T5 and T6) realized using the bimetal technique,

and protection against short-circuit with a magnetic device (with fixed threshold for T1, T2, T3, Ts3 

and T4 up to 50 A and adjustable threshold for T4, T5 and T6).

The four-pole circuit breakers are always supplied with the neutral protected by the trip unit 

and with protection of the neutral at 100% of the phase settings up to 100 A. For higher settings, 

the protection of the neutral is at 50% of the phase setting unless the protection of the neutral at 100% of 

the phase setting is required.

 

Working conditions of MCCB                                                  

1. Not over altitude 2000m; 

2. Ambient temperature is between-25°C and +40°C ; Working in the medium which not any explosive, 

not enough dielectric to corrode metal, no gas to damage insulation and electric conduction dust; 

3. Working in the place would not be invaded by rain and snow; 3. Pollution degree3; 4. Mounting type. 

 

Classification of MCCB                                                             

 

1) According to using: distribution circuit protection type, motor production type;

2) According to connection mode: front panel connection, back panel connection, plug-in connection;

3) According to operating way: for direct handle operating, for motor operator operating, for rotary handle operating.

4) According to the number of pole: 3,4 pole.

5) According to the accessory: with accessory setting, and without accessory setting.


Rated current of release(A)
 

Thermodynamic release(ambient temp+40 )
 

Operation current 

of magnetic release(A)
 

1.05ln(cold state)
inoperative time(h)
 

1.30ln(heat state)
inoperative time(h)
 

ln 63 
 

1
 

1
 

10-50ln 20%
 

63 ln 250
 

2
 

2
 

10ln 20%
 

250 ln 800
 

2
 

2
 

5-10ln 20%
 

 

 

Rated current of release(A)
 

Thermodynamic release(ambient temp+40 )
 

Operation 

current 

of magnetic 

release(A)
 

1.0ln(cold state)
inoperative 

time(h)
 

1.20ln(heat state)
inoperative 

time(h)
 

1.50ln(heat state)
inoperative 

time(h)
 

1.0ln(heat state)
inoperative 

time(h)
 

12.5 ln 400
 

2
 

2
 

4min
 

2S Tp 10S
 

12ln 20%
 

 

ABB Tmax (SM8max)  MCCB SPECS   

 

Type
 

T1-100
 

T1-160
 

T3-250
 

T5-400
 

T5-630
 

T6-800
 

Pole nunmber
 

1,3
 

3
 

3
 

3
 

3
 

3
 

Rated current ln(A)
 

25,32,40,50,

60,80, 100
 

125,160
 

160,200,250
 

300,400
 

500,630
 

700,800
 

Rated insulation voltage Ui(V)
 

AC500
 

AC660
 

AC660
 

AC660
 

AC660
 

AC660
 

Utilisation category
 

A
 

A
 

A
 

A
 

A
 

A
 

Rated ultimate short-circuit breaking capacity lcu(KA) at 415V
 

25
 

65
 

65
 

65
 

65
 

65
 

Rated short-circuit service breaking capacity lcs(%lcu)at 415V
 

75%
 

75%
 

75%
 

75%
 

75%
 

75%
 
 
Xinchi Electric Co., Ltd. is the best one, which stands out above the rest in China intelligent low voltage electrical field, meanwhile it is a grouping company in the "city of electrical".There are four branch companies subordinate to it:Yueqing Xinchi Electric Sci-Tech Co., Ltd, Yueqing Imp&Exp Co., Ltd, HK Yangming Electrical Technology Co., Ltd and Wenzhou Litto smart Co., Ltd.Moreover.There are 320 workers, the annual output value breakthrough one hundred million, and the export value arrive at ten million.
We always pay attention to manufacture and sell automatic industrial and control system, modular intelligent electrical equipments, such as circuit breakers, residual circuit breakers, contactors, isolators, solid state relay, control and protect switch, automatic transfer switch, electrical fire detecting system, surger protect device, multifunctional meter and new energy system fittings etc.
Especially DC circuit breaker, DC isolating switch, DC fuse, busbar chamber, waterproof switch and other products with leading technical level in this field...We are the first domestic company with CE, CB, IEC, Nemko, SAA, TUV, ISI and CCC certification.Our products are widely used by domestic famous enterprises, and it has become a OEM partner of many international famous brands.

We have fully implement the IS09001:2008 quality management system.It adopts advanced production equipment and precision detecting equipment, introduces high-tech process and high technology talents to provides powerful guarantee for product development, quality upgrading and management innovation of the company.
In order to seek after the excellence, Xinchi will continue to carry on the spirit of "practice, honesty, innovation, active", insist on the policy of " technology promotes industry, Brand promotes industrial", and we believe in "Technology innovation, famous in the world", working hard to let"XINCHI electric brand"walk towards to the world.

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