Categories
NS Moulded Case Circuit Breaker

Meba LS ABE 225A MCCB Circuit Breaker MBE203B

1. MBE series MCCB is developed from LS type, suitable for industrial or commercial power and lighting with AC50/60Hz, rated working voltage up to AC600V/DC250V, rated current up to 630A.

2. It’S a kind of economical breaker with the characters of stable and reliable function, beautiful appearance, small size and long life.

3. It can be used for conversion of line and infrequent starting motor. It can also be attached to install the accessories which have protection function for avoiding loss-voltage, undervoltage.

4. The product can install connection line with front board and back board, it also can equip hand-operating apparatus or motor-operating apparatus to control in a remote distance.

The rated insulation voltage for this series of circuit breaker is 690V, the rated operating voltage is 600V, the rated frequency is 50Hz, the other rated values for the main circuit.

Type

2pole

MBE-32E

MBE-52E

MBE-52S

MBE-62E

MBE-62S

3pole

MBE-33S

MBE-53E

MBE-53S

MBE-63E

MBE-63S

Frame size(AF)

30

50

60

Rated current (A)

5,10,15,
20,30

5,10,15,20
30,40,50

60

Rated operational voltage(V) Ue (50/60Hz)

600

600

600

600

600

Rated insulation voltage(V) Ui (50/60Hz)

690

690

690

690

690

Rated impulse withstand voltage (KV) Uimp

6

6

6

6

6

Ultimate breaking capacity
(KA, Icu, AC 50/60Hz)

220/240V

10

10

25

10

25

380V

7.5/5

7.5/5

14/10

7.5/5

14/10

415V

7.5/5

7.5/5

14/10

7.5/5

14/10

440/460V

5

5

10

5

10

480/500V

2.5

2.5

7.5

2.5

7.5

600V

2.5

2.5

5

2.5

5

Utilisation category

A

A

A

A

A

Endurance

Mechanical

8500

8500

8500

8500

8500

Electrical

1500

1500

1500

1500

1500

Part2

Type 2pole

MBE-102E

MBE-102S

3pole

MBE-103E

MBE-103S

MBE-203E

MBE-203S

MBE-403E

MBE-403S

Frame size(AF)

100

225

400

Rated current (A)

5,10,15,
20,30,40,50,60,75,100

5,10,15,
20,30,40,50,60,75,100

100,125,150,175,220,225

250,300,350,400

Rated operational voltage(V) Ue (50/60Hz)

600

600

              600

600

600

600

Rated insulation voltage(V) Ui (50/60Hz)

690

690

          690

690

690

690

Rated impulse withstand voltage (KV) Uimp

6

6

                 6

6

6

6

Ultimate breaking capacity
(KA, Icu, AC 50/60Hz)
220/240V

10

50

35

50

35

50

380V

7.5/5

25

18

25

30

42

415V

7.5/5

25

18

25

25

35

440/460V

5

25

18

25

25

35

480/500V

2.5

25

10

14

18

25

600V

2.5

14

7.5

10

18

22

Utilisation category

A

A

A

A

A

A

Endurance Mechanical

8500

8500

7000

7000

4000

400

Electrical

1500

1500

1000

1000

1000

1000

Dimension:

MBE203B Dimension

 

 

 

Meba LS ABE 225A MCCB Circuit Breaker MBE 203B is delevop moulded case circuit breaker used to distribute electric energy in distribution network, overload or short circuit protection power equipment and transformation of infrequent circuit under the normal conditions.

Categories
C Series Moulded Case Circuit Breaker

Meba MCCB Circuit Breaker H126h

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·Brief description
1. Compared with traditional circuit breaker or relevant fuse,MEBA C series circuit breaker has excellent protection performance in smaller space, in maximum range can satisfy rated current and faulty current’s requirement.
2. C series  circuit breaker  can  be used in cascade system,  meet next stage circuit breaker’s limit section capacity select protection req-uirement, save whole system cost.
C series circuit breaker complies with IECZ60947-2 international standard;  also comply with main industrial countries standard.
·Features
1. C series  circuit  breaker  including 7 basic frames, frame current from  100  to  2500A.  Each  frame  has up to  415V 100KA (AC240V 200KA)short circuit breaking capacity multiple choice, more flexibility in design, and save space as well.
2. Actually, using  C series  circuit breaker  can  avoid  in  re-design system.  It  can be used in original  switchboard,  feeder ark, bus duct, equipment control panel,  motor  control  center  substitute of old type circuit  breaker.  At  most situations,  can  adopt  same Connector bar, terminal and shaft structure.
3. Circuit  breaker  stan dard  temperature  is  40  degree,  for other higher  ambient  temperature  situation,  can  use  50  degree  factory finalize type design circuit breaker.
4. C series circuit breaker can be used in DC situation as well, 630A frame  3P  circuit breaker   concatenation  used  in  DC600V  breaking capacity can reach 40KA.

·Most reasonable contact terminal system design
C series circuit breaker flexible and special specific is adopt one of the most reasonable design in circuit breaker history, can assure circuit breaker in high fault current fast and reliable breaking.

·Whole testing process in factory
Each C series circuit breaker steady and reliable quality is acc-ording to a whole testing procedure assurance, each circuit breaker’s same pole has to make two times setting test to verify trip,  operating characteristic and electric circuit contentiously.

·High breaking capacity in smaller space
C circuit breaker in shape and electric function can be interchan-ged with Westinghouse moulded case circuit breaker, this means C series circuit breaker is ideal product after  improve its equipment design.
·Operation structure
1.C  series  circuit breaker adopt in fast-separate  and  fast-close mechanical  operation,  which has free trip function,  assure  circuit breaker in short circuit time can not keep closed.
2. Circuit  breaker’s  trip shaft’s  position and two sides’  windows point its working condition:  ‘witch-on’, ‘reak- brake’ and ‘rip’ If circuit breaker overloading,  short circuit, shunt  or  under voltage or press TEST button makes trip, shaft will slip to ‘rip’ position. At mean while if need  circuit  breaker re-switch on,  it should switch shaft to reset position then break brake.

·Current limit feature
   C series circuit breaker adopts high repulsion contact terminal structure and advantage ARC technology, so it has significant currentlimit function.
·Standard
  IEC60947-1:General rule
IEC60947-2:Circuit breaker
IEC60947-3:Switch, isolating switch, load switch etc.

H126h-Parameter

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Working condition:
1.The altitude not exceeding 2000m
2.The ambient temperature is from +40°Cto -5°C
3.Ambient environment is free from explosive danger and air or dust, which may cause corrosion of metal or weakness of insulation.
4.Ambient environment is free from erosion of rain or snow.
5.Pollution degree 3
6.Over-voltage category III

C series MCCB Structure

 

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 [Download not found]Meba MCCB Circuit Breaker H126h is big ampere circuit breaker  with high breaking capacity match with RCCB, MCB  use  to protection power distribution equipment safety. [/tab_item]
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Categories
NF Moulded Case Circuit Breaker

Meba Mccb Short Circuit Protection NF250-CP

1. NF series thermal magnetic type molded case circuit breaker is  developed new  mccb, included NF-CS, NF-SS, NF-CP, NF-SP, NF-HP, NF-CW series.

2. Rated working voltage 690V, 50HZ or 60HZ, and rated working current from 3A to 800A.

3. It mainly used in distributing electric energy and protect the electrical circuit and power equipment from damages caused by overload, short circuit or under-voltage in the distribution network.

4. It complies with IEC60947-2 and GB14048.2 standards.

Working Conditions and Mounting Environments
1. The altitude should be less than 2000m
2. The ambient medium temperature should within -5℃ to +40℃
3. This moulded case circuit breaker is resistant to moisture, salt fog, nuclear radiation, and mildew
4. The maximum tilt angle is 22.5°
5. MCCB can still work reliably if the product is subjected to vibration from ships or earthquakes(4g)

Parameters of NF-250 Moulded Case Circuit Breaker

Frame Current(A) 250
Model NF-250C NF-250S NF-250H
Rated Current in(A) 100,125,140,160,180,200,225,250A
Poles 3 4 3 4 3 4
Rated Voltage Ue(V) AC400
Rated Insulation Voltage Ui(V) AC690
(KA)AC400 Short-Circuit Interrupting Capacity Icu/Ics 35/18 50/35 80/50
Operation Life(cycle) Power on 3000
Power off 7000
Dimensions(mm) a 105 140 105 140 105 140
b 165 165 165
c 68 68 68
ca 92 92 92
Weight(kg) 1.5 1.9 1.5 1.9 1.5 1.9
Electrical-operation Device(MD)
External Rotary Handle
Automatic Tripping Device thermal-magnetic thermal-magnetic thermal-magnetic

[Download not found]Meba Mccb Short Circuit Protection NF250-CP is update thermal magnetic type mccb max 250A against overload & short circuit.

Categories
Miniature Circuit Breaker

Meba mccb circuit breaker MBHVS

Meba mccb circuit breaker MBHVS  major export to South America, Middle East market, has light weight, small size, novel structure and excellent performance. They are mounted in the metal distribution board and used in guesthouses. block of fiats, high buildings, squares, airports, railway stations, plants and enterprises etc, in AC circuits 240V(single pole)up to 415V(3poie)50Hz for protection of overload short circuit and for circuit changeover in lighting system. Breaking capacity is 3KA. The items comply with BS&NEMA STANDARD.

Feature:

MAGNETIC COIL: ensures the switching of short-circuit, speaking within the following ranges: 5 to 10 times rated current (Type C), 3 to 5 times rated current ( Type B ), 10 to 20 times rated current ( Type D )

BIMETAL: ensures the breaker trip when overloaded.

ARC CHAMBER: effectively dissipates the electric arc that is generated by the opening contacts of the trigger mechanism in the presence of an overload or short circuit.

Meba mccb circuit breaker MBHVS

Technical parameters

ropicalization Relative Humidity 93% RH at 25℃
Room Temperature 10℃ a 60℃
Electrical Properties Rated at 40℃ A 6/10/15/20/30/40/50/63
Rated operating voltage at 40℃ Vac 120/240/415
Nominal Frequency Hz 50/60
Interrupting Capacity at 230V kA 3
Operating temperature -5℃ a +40℃
Degree of Protection IP20
Number of poles 1,2,3,4
Conductor cross section (minimum allowable) mm2 25
Minimum number of power moves 4000
Minimum number of mechanical operations 6000
Operation curve B/C/D
Current Trip Curve A Type B 3a 5 In
Type C 5 a 10 In
Type D 10 a 14 In
Characteristic Intervention attach
Type Of Assembly NEMA Type
Features MAGNETIC COIL: ensures the switching of short-circuit, speaking within the following ranges: 5 to 10 times rated current (Type C), 10 to 14 times rated current ( Type D )
BIMETAL: ensures the breaker trip when overloaded.
ARC CHAMBER: effectively dissipates the electric arc that is generated by the opening contacts of the trigger mechanism in the presence of an overload or short circuit.