IEK
RSS English Español Feedback Sitemap

Molded case circuit breakers VA88

Description


VA88 circuit breakers are intended for conducting current in normal mode and switching it off at short circuits, overload, inadmissible bucking as well as operational actuation and tripping of electric circuit parts. They are designed for use in electric units having the operative voltage limited to 400V per rated current from 12,5 to 1600A.

They correspond to the requirements of EN 60947-1, EN 60947-2

     
  This circuit breaker was awarded silver medal of the 16th International Exhibition “Electro-2007” in nomination “Best electrical equipment”.

Range


 
Name Rated current, A Number of poles Ultimate short-circuit breaking capacity Icu Package amount, pcs Product ID
individual multiple  
  VA88-32 3 12,5 25 k 12,5 3 25  
20 SVA10-3-0012
VA88-32 3 16 25k 16 3 25  
20 SVA10-3-0016
VA88-32 3 25 25 k 25 3 25  
20 SVA10-3-0025
VA88-32 3 32 25 k 32 3 25  
20 SVA10-3-0032
VA88-32 3 40 25 k 40 3 25  
20 SVA10-3-0040
VA88-32 3 50 25 k 50 3 25  
20 SVA10-3-0050
VA88-32 3 63 25 k 63 3 25  
20 SVA10-3-0063
VA88-32 3 80 25 k 80 3 25  
20 SVA10-3-0080
VA88-32 3 100 25 k 100 3 25  
20 SVA10-3-0100
VA88-32 3 125 25 k 125 3 25  
20 SVA10-3-0125
  VA88-33 3 16 35 k 16 3 35  
16 SVA20-3-0016
VA88-33 3 32 35 k 32 3 35  
16 SVA20-3-0032
VA88-33 3 40 35 k 40 3 35  
16 SVA20-3-0040
VA88-33 3 50 35 k 50 3 35  
16 SVA20-3-0050
VA88-33 3 63 35 k 63 3 35  
16 SVA20-3-0063
VA88-33 3 80 35 k 80 3 35  
16 SVA20-3-0080
VA88-33 3 100 35 k 100 3 35  
16 SVA20-3-0100
VA88-33 3 125 35 k 125 3 35  
16 SVA20-3-0125
VA88-33 3 160 35 k 160 3 35  
16 SVA20-3-0160
  VA88-35 3 63 35k 63 3 35  
6 SVA30-3-0063
VA88-35 3 80 35k 80 3 35  
6 SVA30-3-0080
VA88-35 3 100 35k 100 3 35  
6 SVA30-3-0100
VA88-35 3 125 35 k 125 3 35  
6 SVA30-3-0125
VA88-35 3 160 35 k 160 3 35  
6 SVA30-3-0160
VA88-35 3 200 35 k 200 3 35  
6 SVA30-3-0200
VA88-35 3 250 35 k 250 3 35  
6 SVA30-3-0250
  VA88-35 3 250 35 k with MR 211 electronic trip unit 250 3 35  
6 SVA31-3-0250
  VA88-37 3 250 35 k 250 3 35 1 4 SVA40-3-0250
VA88-37 3 315 35 k 315 3 35 1 4 SVA40-3-0315
VA88-37 3 400 35 k 400 3 35 1 4 SVA40-3-0400
  VA88-37 3 400 35 k with MR 211 electronic trip unit 400 3 35 1 4 SVA41-3-0400
  VA88-40 3 400 35 k 400 3 35  
2 SVA50-3-0400
VA88-40 3 500 35 k 500 3 35  
2 SVA50-3-0500
VA88-40 3 630 35 k 630 3 35  
2 SVA50-3-0630
VA88-40 3 800 35 k 800 3 35  
2 SVA50-3-0800
  VA88-40 3 800 35 k with MR 211 electronic trip unit 800 3 35  
2 SVA51-3-0800
  VA88-43 3 1000 50 k with MR 211 electronic trip unit 1000 3 50 1 1 SVA61-3-1000
VA88-43 3 1250 50 k with MR 211 electronic trip unit 1250 3 50 1 1 SVA61-3-1250
VA88-43 3 1600 50 k with MR 211 electronic trip unit 1600 3 50 1 1 SVA61-3-1600

Advantages


  • Easy independent installation of auxiliary devices:
    • signal contact;
    • auxiliary contact;
    • undervoltage trip;
    • shunt trip;
    • rotary handle;
    • motor control;
    • plug-in panel;
    • pull-out panel.
  • Standard set of each circuit breaker consists of connecting busbars or cable lugs, phase separators, a set of screws and nuts for its mounting onto an installation panel.
  • With the help of special buckles VA88-32 and VA88-33 units can be installed onto a DIN-rail.
  • Weight and dimensions of these circuit breakers are by 10-20% less than that suggested by other home manufacturers. This fact provides for mounting smaller boxes and panels. Besides, small dimensions make it possible to change old circuit breakers to VA88.

Design Features


Current limit, in other words – actual short circuit current, is lower than the rated one. This is realized at the expense of boosted contacts separation speed. Dynamic effect of magnetic field and the arc extinguishing chamber structure provide for extinguishing the arc within the shortest possible time. Full range of thermal releases gives opportunity to ensure selectiveness based on the multi-level protection system.
VA88 construction provide for independent installation of auxiliary devices. With the help of a special RCS buckle VA88 circuit breakers can be installed onto a DIN-rail.
Plastic details of the body are made of glass-nylon composite ensuring yield strength at short circuits. VA88 can be mounted in any position without affecting their rated characteristics. They can be powered from the upper or lower clamps without violating their operation.
Double insulation provides for full separation of power and auxiliary circuits. The body of each auxiliary device is placed to a separate bay that totally excludes any contacts with conducting parts and ensures servicing and testing safety. High values of ultimate short-circuit breaking capacity extend up to 50kA.

Technical Features



Circuit breaker type

VA88-32

VA88-33

VA88-35

VA88-35 with MR211 trip unit

Trip unit type

Thermal

Electromagnetic

Thermal

Electromagnetic

Thermal, electromagnetic

Electronic

Rated current, A

12,5

50

16

50

63

Adjustable:


16

63

32

63

80

250x(0,4÷1)


25

80

40

80

100



32

100


100

125



40

125


125

160






160

200







250


Electromagnetic release setting,

500

10In

500

10In

10In

Adjustable







250x(1,5÷12)








Number of poles

3

3

3

3

Service short-circuit breaking capacity Ics, A

12,5

17,5

25

25

Ultimate short-circuit breaking capacity Icu, A

25

35

35

35

Auxiliary Devices

Rotary handle type

PRP-1 125A (PRP-32)

PRP-1 160A (PRP-33)

PRP-1 250A (PRP-35)

PRP-1 250A (PRP-35)

DIN rail mounting buckle type

RCS-1 buckle

RCS-2 buckle

 


 


Signal auxiliary contact type

AK-125/160 (AK-32/33)

AK-125/160 (AK-32/33)

AK-250/400 (AK-35/37)

AK-250/400 (AK-35/37)

Auxiliary contact type

DK-125/160 (DK-32/33)

DK-125/160 (DK-32/33)

DK-250/400 (DK-35/37)

DK-250/400 (DK-35/37)

Shunt trip type

RN-125/160 (RN-32/33)

RN-125/160 (RN-32/33)

RN-250/400 (RN-35/37)

RN-250/400 (RN-35/37)

Undervoltage trip type

RM-125/160 (RM-32/33)

RM-125/160 (RM-32/33)

RM-250/400 (RM-35/37)

RM-250/400 (RM-35/37)

Electric drive type

EP-32/33

EP-32/33

EP-35/37

EP-35/37

Mounting panel type (for front plug-in)

PM1/P-32

PM1/P-33

PM1/P-35

-

Mounting panel type (for rear plug-in)

PM1/R-32

PM1/R-33

PM1/R-35

-

Mounting panel type (for front pull-out)

-

-

PM2/P-35

-

Mounting panel type (for rear pull-out)

-

-

PM2/R-35

-



---------------------------------------------------------



VA88-37

VA88-37 with MR211 trip unit

VA88-40

VA88-40 with MR211 trip unit

VA88-43 with MR110 trip unit

VA88-43 with MR211 trip unit

Thermal, electromagnetic

Electronic

Thermal, electromagnetic

Electronic

Electronic

Electronic

250

Adjustable:

400

Adjustable:

Adjustable:

Adjustable:

315

400x(0,4÷1)

500

800x(0,4÷1)

1000x(0,4÷1)

1000x(0,4÷1)

400


630


1250x(0,4÷1)

1250x(0,4÷1)



800


1600x(0,4÷1)

1600x(0,4÷1)







10In

Adjustable:

10In

Adjustable:

Adjustable:

Adjustable:


400x(1,5÷12)


800x(1,5÷12)

1000x(1,5÷12)

1000x(1,5÷12)





1250x(1,5÷12)

1250x(1,5÷12)





1600x(1,5÷12)

1600x(1,5÷12)

3

3

3

3

3

3

35

35

35

35

50

50

35

35

35

35

50

50



Auxiliary Devices

PRP-1 400A (PRP-37)

PRP-1 400A (PRP-37)

PRP-1 800A (PRP-40)

PRP-1 800A (PRP-40)

-

-

AK-250/400 (AK-35/37)

AK-250/400 (AK-35/37)

AK-800/1600 (AK-40/43)

AK-800/1600 (AK-40/43)

AK-800/1600 (AK-40/43)

AK-800/1600 (AK-40/43)

DK-250/400 (DK-35/37)

DK-250/400 (DK-35/37)

DK-800/1600 (DK-40/43)

DK-800/1600 (DK-40/43)

DK-800/1600 (DK-40/43)

DK-800/1600 (DK-40/43)

RN-250/400 (AK-35/37)

RN-250/400 (RN-35/37)

RN-800/1600 (RN-40/43)

RN-800/1600 (RN-40/43)

RN-800/1600 (RN-40/43)

RN-800/1600 (RN-40/43)

RM-250/400 (AK-35/37)

RM-250/400 (RM-35/37)

RM-800/1600 (RM-40-43)

RM-800/1600 (RM-40-43)

RM-800/1600 (RM-40-43)

RM-800/1600 (RM-40-43)

EP-35/37

EP-35/37

EP-40

EP-40

EP-43

EP-43

PM1/P-37

PM1/P-37

-

-

-

-

PM1/R-37

PM1/R-37

-

-

-

-

PM2/P-37

PM2/P-37

PM2/P-40

PM2/P-40

PM2/P-43

PM2/P-43

PM2/R-37

PM2/R-37

PM2/R-40

PM2/R-40

PM2/R-43

PM2/R-43

Configuration


Connecting busbars Phase separators Set of screws for panel mounting Set for connecting external conductors


Auxiliary devices for VA88 MCCB

 

1 - Power circuit breaker
2 - Mounting panel (base) for plug-in/pull-out) option
3 - Side panels for pull-out option
4 – Phase separators
5 – Connecting busbars
6 – Plug-in contacts
7 – Blocking unit

8 – Terminal cover
9 – Casing cover
10 – Detachable casing cover
11 - Rotary handle drive
12 – Motor control
13 - Shunt trip/undervoltage trip
14 – Auxiliary/signal contacts

Contact us Contact us:
+7 (495) 542 22 22
 
Copyright 1999-2018 IEK. ALL RIGHTS RESERVED.