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Base product data 

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A88 circuit breaker with electronic release of KARAT series of IEK 

trademark (hereinafter referred to as circuit breaker) is designed to conduct 
current in normal mode and turn off overcurrents in case of short circuits and 
overloads, as well as for infrequent (up to 30 times a day) operational switching 
on and off of electrical circuits in three-phase alternating current electrical 
networks with voltage up to 400 V and frequency of 50 Hz. 

The circuit breaker meets the requirements of Directive No. 2014/30/EU, 

2014/35/EU, IEC 60947-2.

The circuit breaker can be operated under the following conditions:
– operating temperature range from minus 25 

°

Ñ

 to plus 40 

°

Ñ

;

 

base altitude 

 no more than 1000 m, operation at the altitude of up to 

2000 m is allowed with a decrease of rated current up to 10 %;

– environment condition group according to IEC 60947-1 – A, B*;
– utilization category according to IEC 60947-2 – 

Â

 (can be used to ensure 

selectivity);

– maximum value of relative humidity – 90 % and at temperature plus 20 

°

Ñ

;

– no direct exposure to solar-radiation;
– non-explosive environment, not containing aggressive gases and vapors in 

concentrations that destroy metals and insulation, not saturated with conductive 
dust and water vapors.

The circuit breaker is intended for use in an environment with pollution 

degree 3 (conductive pollution is possible or dry, non-conductive pollution that 
becomes conductive due to expected condensation).

The circuit breaker is equipped with an electronic microprocessing release 

MP211, which provides overload protection with an inverse long tripping delay 
and an inverse time-current characteristic, and also provides short-circuit 
protection with adjustable tripping. MP211 parameters are shown in table 2.

Specifications

The technical parameters of the circuit breaker depending on the type are 

listed in table 1.

Degree of protection of the circuit breaker case is IP30, of terminals for 

connecting external conductors 

 IP00

.

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88 CIRCUIT BREAKERS WITH ELECTRONIC RELEASE 

EN

REAL ABILITY

When using the circuit breaker in a group B environment, special devices should be used to 

protect against unwanted electromagnetic interferences.

 

K

ARA

T

Содержание BA88-35

Страница 1: ...88 KARAT IEK 30 400 50 004 2011 037 2016 IEC 60947 2 50030 2 3 15150 25 40 3 17516 1 IEC 60947 2 3 90 20 IEC 60947 1 A B 1000 2000 10 IP30 IP00 1 88 RU KARAT REAL ABILITY...

Страница 2: ...2 5 1 5 6 2 211 211 2 JG DT DL DTL IEK 88 35 5 6 13983 1 5 88 35 3 1 6 7 4 3 4 REAL ABILITY KARAT...

Страница 3: ...3 8 10 DIP 8 6 1 3 5 2 4 6 6 7 23216 4 2 15150 1 3 5 1 3 5 90 10434 17441 15 8 211 REAL ABILITY KARAT...

Страница 4: ...4 25 C 40 C 15 25 C 40 C 90 20 C 5 REAL ABILITY KARAT...

Страница 5: ...90 and at temperature plus 20 no direct exposure to solar radiation non explosive environment not containing aggressive gases and vapors in concentrations that destroy metals and insulation not satur...

Страница 6: ...gram of circuit breaker is shown on the figure 3 The normal operating position of the circuit breaker in space is on a vertical plane with terminals 1 3 5 upwards installation on a vertical plane with...

Страница 7: ...load current of at least 15 of the rated current even if there is voltage in only one phase The protection unit includes three current transformers a microprocessor module and a trip electromagnet tha...

Страница 8: ...Electrical wear resistance ON OFF cycles minimum 2500 2000 2000 1500 Tightening torque of fasteners for connecting external conductors N m 12 1 5 using a wrench using 30 1 5 a wrench 10 0 5 using a wr...

Страница 9: ...lied with circuit breaker 2 Cross section of a rigid solid or stranded 2 conductor mm 2 Cross section of flexible conductor 2 mm 2 Cross section dimensions mm of a 2 copper bus mm 2 Cross section dime...

Страница 10: ...60 40 4 200 40 5 160 40 4 200 40 5 630 160 40 4 200 40 5 160 40 4 200 40 5 800 160 40 4 240 40 6 160 40 4 200 40 5 88 43 1000 250 50 5 500 50 10 250 50 5 500 50 10 1250 250 50 5 500 50 10 250 50 5 500...

Страница 11: ...80 400 88 40 800 320 400 480 560 640 720 760 800 88 43 1000 400 500 600 700 800 900 950 1000 88 43 1250 500 625 750 875 1000 1125 1187 5 1250 88 43 1600 640 800 960 1120 1280 1440 1520 1600 Type I n I...

Страница 12: ...it breaker 2 fixed part basement for plug in withdrawable design 3 side elements for withdrawable design 4 interphase barriers 5 plug in contacts 6 terminal covers 7 detachable cover of case 8 circuit...

Страница 13: ...13 REAL ABILITY KARAT min 2 Figure 2 Time current characteristics of circuit breakers with electronic release 211 3 Figure 3 Electrical schematic of circuit breaker 1 2 3 4 5 6 1 2 3...

Страница 14: ...d mounting dimensions of circuit breaker Dimensions mm 88 35 88 37 88 40 88 43 35 44 70 70 1 35 44 70 70 2 181 214 237 378 3 90 5 105 110 203 105 140 210 210 1 105 105 140 140 218 254 268 420 1 109 12...

Страница 15: ...14 20 2 holes 8 5 30 5 18 20 2 7 9 48 adapter lugs for 88 35 adapter lugs for 88 40 adapter lugs for 88 43 adapter lugs for 88 37 Rated current of A 35 mm 63 80 100 125 160 200 4 250 5 Rated current...

Страница 16: ...current of A mm 63 80 100 125 160 200 4 250 5 extended outputs for 88 37 Rated current of A mm 250 5 315 400 6 20 30 53 13 33 10 19 40 8 6 10 1 53 33 0 125 10 20 10 1 8 6 18 4 12 20 30 53 13 33 10 19...

Страница 17: ...5 500 630 6 800 8 50 80 12 6 47 5 12 22 22 50 50 11 2 53 5 62 5 130 18 H 15 47 5 12 6 53 5 62 5 130 18 H 50 80 12 6 47 5 12 22 22 50 50 11 2 15 47 5 12 6 50 47 5 80 50 47 5 12 22 22 11 2 12 6 12 6 15...

Страница 18: ...oard minimum distance between two circuit breakers vertically installed 1 non insulated connection 3 able lugs 2 insulated cable Circuit breaker type Installation in metal earthed switchboard Installa...

Страница 19: ...RAT 8 Figure 8 Setting the parameters of the microprocessing release overload curve switch short circuit protection setting switch time current curve overload protection setting switch a 211 tr I 6lr...

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