Miniature Circuit Breaker

Meba mcb breaker MABD

Meba mcb breaker MABD


Meba mcb breaker MABD is used in lighting distribution system or motor distribution system for protection overload and short-circuit in the system. The product is neoteric in structure, light in weight, reliable and excellent in performance. It has high breaking capacity, can trip quickly, and its case and items are adopted by high fire-resistant and shockproof plastics. The product, with long life, is mainly used in AC 50Hz/60Hz single-pole 230V or two, three, four pole 400V circuit for overload and short-circuit protection as well as for unfrequent on-and-off switching electric equipment and lighting circuit in normal case. The products comply with IEC 60898.

Tropicalization Relative Humidity 93% RH at 25℃ 50% RH at 40℃
Room Temperature -5℃ a 40℃
Electrical Properties Rated at 40℃ A 6/10/16/20/25/32/40/50/63
Rated operating voltage at 40℃ Vac 240/415
Nominal Frequency Hz 50/60
Interrupting Capacity at 230V kA 6
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 8000
Operation curve B/C/D
Current Trip Curve A Type B: 3 a 5 In Type C: 5 a 10 In Type D: 10 a 14 In
Characteristic Intervention attach
Type Of Assembly FOR RIEL DIN 35mm
Features 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 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.
G series Moulded Case Circuit Breaker

Meba Breaker MJS3250AAGV

Meba Breaker MJS3250AAGV

·Brief description
G series moulded case circuit breaker not only has compact volume than normal circuit breaker or fuse, but
also supply more advanced performance. Advantages as following:

■Easy installation accessory

■Easy installation accessory

■20A-2500A can equip with electronic trip

■Built in 20A earth fault protection

· Most reasonable contact terminal system design

Excellent contact terminal design makes G series circuit breaker outstanding performance and high flexibility possible. Our licensed technology adopts speed ’air-blowing’ system, this system adopts high breaking capacity fault current electric power function.

G circuit breaker adopts operation shaft equipment structer, this structer can trip freely when short circuit, shaft can direct definitely trip which caused in short circuit or overload, this fast and reliable operation system improve the safety performance.

·Completely testing before delivery
G circuit breaker’s quality and reliable is assured by completely testing, each pole on circuit breaker will make 2 times setting test to assure trip structure, operation structure and continuously and precision.

·Operating mechanism
G circuit breaker adopts shaft operation feature, this shaft can instruct circuit breaker’s  working condition: ON OFF and PIPPED.

2. When circuit breaker appear overloading, short circuit, shunt or under voltage trip action, shaft will jump to TRIPPED (trip) position, at this time, if need to re-switch on must push shaft to RESET position.

3. On both sides of shaft on EG and RG frame there will have 2 windows, which direct circuit breaker’s  working condition, red, green and white each correspondence  to: On/OFF/TRIPPED.

G Series Trip Unit

MEE3050FFGV Parameter

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

[Download not found] Meba Mem Breaker MJS3250AAGV is big ampere circuit breaker  with high breaking capacity match with RCCB, MCB  use  to protection power distribution equipment safety.

NF Moulded Case Circuit Breaker

Meba Electric Automation Moulded Case Switch NF63-CP

1. NF series thermal magnetic type molded case circuit breaker, developed  type 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-63 Moulded Case Circuit Breaker

Frame Current(A) 63
Model NF-63C NF-63S
Rated Current in(A) 10,16,20,32,40,50,63 10,16,20,32,40,50,63
Poles 2 3 4 2 3 4
Rated Voltage Ue(V) AC400
Rated Insulation Voltage Ui(V) AC690
(KA)AC400 Short-Circuit Interrupting Capacity Icu/Ics 10/5 35/20
Operation Life(cycle) Power on 6000
Power off 9000
Dimensions(mm) a 50 75 100 50 75 100
b 130 130
c 68 68
ca 90 90
Weight(kg) 0.45 0.65 0.45 0.65
Electrical-operation Device(MD)
External Rotary Handle
Automatic Tripping Device thermal-magnetic thermal-magnetic

[Download not found] Meba China Mitsubishi MCCB NF63-CP is update thermal magnetic type mccb max 63A against overload & short circuit.