Tag: low voltage switch

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MTmax Moulded Case Circuit Breaker

Meba Moulded Case Breaker for isolation between conductor and ground metal parts MTmax-250A-3P

meba 250A abb Tmax mccb 3P

Application

1. MTmax series moulded case  breaker is the lasted model of mccb, suitable for circuit AC 50Hz/60Hz, rated voltage up to AC 660V, rated operating current up to 1600A.

2. It features normal structure, reliable performance, high breaking capacity, used for power distribution and protecting the circuit and electrical equipment against overload and short circuit.

3. It complies with standard of IEC60947-2.

Classification:

1. Installation way: Mounted vertically, Horizontal installation;
2. By use of circuit breaker usage: Distribution protection, Motor protection;
3. According to the mode of wiring points: Front panel wiring, Back panel wiring , Plug-in connection;
4. According to the mode of operation: direct operating handle, External turning the handle operations, electric operation;
5. By release type distinction: instantaneous action release (magnetic release), thermal + electromagnetic release (duplex); electronic release;
6.  Poles Number: 3poles, 4poles;

Specification

Type MTMAX-160 MTMAX-250
Poles No. 3 3
Rated current In(A) 16-160 100-250
Rated operating voltage Ue(V)(50/60Hz) 690 690
Rated insulation voltage Ui(V) 800 800
Rated impulse withstand voltage Uimp(KV) 8 8
Utilisation category A A
Rated limited short-circuit breaking capacity Icu(KA) 220/230V 25 50
380/415V 16 36
400V 10 25
500V 8 20
690V 3 5
500V-3poles in series 16 36
Rated short-circuit service breaking capacity Ics 100 75

 

Outline and Installation Dimension

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[Download not found]Meba Moulded Case Breaker for isolation between conductor and ground metal parts MTmax-250A-3p max up to 250A, match with many kinds of electrical product like mcb, ac contactor use

Categories
MCCB with earth leakage protection NS Moulded Case Circuit Breaker

Meba Electrical Mccb Circuit Protection MBDPX-125

Meba electrical mccb MBDPX125

Application

1. MBDPX series Moulded Case Circuit Breaker is one of the most advanced type breakers in the world, which adopts international advanced design and manufacture technology.

2. They are suitable for short circuit and overload protection for circuit of AC 690V 50/60Hz, rated current from 12.5A to 630A.Its rated insulation voltage is 690V.

3. It can make and break the nonfrequently circuit in the normal conditions. It takes protect effect when mouse cage motors non-frequent start, breaking off working and protecting overload, short circuit and lacking voltage.

4. It for distribute energy of electricity & infrequent making & breaking circuit in normal conditions. It complies with IEC60947-2.

Technical Parameter

Type MBDPX-125 MBDPX-250 MBDPX-400 MBDPX-630
Poles number 3 3 3 3
Rated current In (A) 25-125 125-250 250-400 320-630
Rated operating voltage Ue(V) AC 50/60Hz 500 600 600 600
Rated working voltage Ue (V) 250 250 250 250
Rated insulation voltage Ui(V) 500 690 690 690
Rated impulse withstand voltage Uimp(KV) 6 8 8 8
Utilization category A A A A
Rated limited
short circuit
breaking capacity
Icu(KA)		 230/240V 22 60 60 60
400/415V 16 36 36 36
440V 10 30 30 30
480/500V 8 25 25 25
600V – 20 20 20
690V – 16 16 16
250V 16 36 36 36
Rated short-circuit breaking service capacity ics(%Icu) 100 100 100 100
Life(open,close for a time) mechanical 700 700 700 700
Electrical 1000 1000 1000 1000

Dimension:

MBDPX-125 Dimension

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Meba Electrical Mccb Circuit Protection MBDPX125 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
NS Moulded Case Circuit Breaker

Meba Low Voltage Switch Circuit Breaker NS-630N-4P

meba acb breaker NS630N-4P

Application

Specification

Application:

1. NS series Compact MCCB the rated insulating voltage is 750V, suitable for AC 50Hz(60Hz), rated working voltage 690V or below, rated working current is 12.5A to 1250A of circuit.

2. Used in distributing electric energy, and non-frequent breaking in the normal conditions, protecting the current & equipment from overload&under voltage, circuit breaker with rated frame current 400A or below can be used in motor’s non-frequent start, breaking during working, protecting motor from overload, short circuit&under-voltage.

3. The product conforms to IEC60947-2 standard.

Classification:

1. Installation way: Mounted vertically, Horizontal installation;
2. By use of circuit breaker usage: Distribution protection, Motor protection;
3. According to the mode of wiring points: Front panel wiring, Back panel wiring , Plug-in connection;
4. According to the mode of operation: direct operating handle, External turning the handle operations, electric operation;
5. By release type distinction: instantaneous action release (magnetic release), thermal + electromagnetic release (duplex); electronic release;
6.  Poles Number: 3poles, 4poles;

Accessories

Meba-NS-Accessories

 

Accessories Rated operating voltage Consumption For type
Pick-up Seal-in
Shunt release(MX) 24V   <10VA   <5VA  NS-100 ~  630
100V
220/230V
380/400V
Under-voltage release(UN) 220/230V <10VA <5VA
380/400V
Accessories Rated operating voltage Rated operating current For type
AC12 AC15
Auxiliary contact(OF) 380/400V 6 3 NS-100 ~  630
Alarm contact(AL) 380/400V 6 3

Rotary handle

◆A. Direct rotary handle
Degree of protection:IP40
Function:
1) suitability for isolation
2) indication of three positions 0(off) I(on) and tripped
3) press ush to trip?button, can trip-free
4) visibility of and access to trip unit settings
5) the circuit breaker can be locked in the off position by one to three padlocks, diameter 5 to 8mm(not supplied)
◆B. Extended rotary handle
Degree of protection:IP55
Function:
1) Suitability for isolation
2) Indication of three positions 0(off) I(on) and tripped
3) Visibility of and access to trip unit settings when the door is open
4) Door opening prevented when circuit breaker is on
5) The circuit breaker can be locked in the off position by one to three padlocks, diameter 5 to 8mm(not supplied). Locking prevents opening of the switchboard door
Installation: Circuit breaker may be mounted vertically, horizontally or flat on their back without any derating of characteristics.
Fix: Mounting on backplate, mounting on rails
Connection: Front panel connection, black panel connection, plug-in connection

Technical Parameter

Specification:

Type Pole No. Rated insulating voltage(V) Rated operating voltage(V) Rated ultimate short circuit breaking capacity Icu(KA) at 380/415V Rated services short circuit breaking capacity Ics at 380/415V(KA) Operation performace Utiliza-tim Category
ON OFF
NS-100N 3, 4 pole 750 690 and below 25 25 1500 8500 A
NS-100H 70 70
NS-100L 150 150
NS-160N 36 36 1000 7000
NS-160H 70 70
NS-160L 150 150
NS-250N 36 36 1000 7000
NS-250H 70 70
NS-250L 150 150
NS-400N 45 45 1000 4000
NS-400H 70 70
NS-400L 150 150
NS-630N 45 45 1000 4000
NS-630H 70 70
NS-630L 150 450
NS-1250N 3 pole 50 37.5 1000 4000
NS-1600N 50 37.5

Note:
1. The N-pole breaker has no protection which closing and opening with the other three poles.
2. The type of thermal magnetic for NS-400/630 has no four poles.

Outline and Installation Dimension:

meba-outline-and-installation-dimension

Trip unit main technical parameter:

Type Rated Current In(A) Note
NS-100 12.5,16,20,25,32,40,50,63,80,100 T adjustable(0.8-1In)
M adjustable(5-10In)
NS-160 16,20,25,32,40,50,68,80,100,125,160
NS-250 160,180,200,225,250
NS-400 315,350,400
NS-630 400,500,630
NS-1250 800,1000,1250 T adjustable(0.8-1In)
M fixed
NS-1600 1000,1250,1600

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[Download not found]Meba Low Voltage Switch Circuit Breaker NS-630N-4P max up to 630A is big ampere circuit breaker  with high breaking capacity match with RCCB, MCB  use  to protection power distribution equipment safety.