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3SB71-63, 16000 A & 10000 A

Independent power supply with build-in power source,directly draws power from the incoming end to avoid the risk of protection function failure caused by external power supply failure.

● Overload protection
● Short circuit protection
● Isolation
● Controlling
● Used in residential building, non-residential building, industry, energy and infrastructure
Availability:

Functions

●   Overload protection

●   Short circuit protection

●   Isolation

●   Controlling

●   Used in residential building, non-residential building, industry, energy and infrastructure


Technical specifications

●   Standards: IEC 60898-1, IEC 60947-2

●   Rated current In (A) : 2, 4, 6, 10, 16, 20, 25, 32, 40, 50, 63

●   Rated voltage Un (V AC): 230/400

●   Operational voltage (V AC): Min. 2; Max. 250/440

●   Rated frequency (Hz): 50/60

●   Rated insulation voltage (V AC): 500

●   Number of poles: 1, 2, 3, 4


Tripping characteristic IEC 60898-1 IEC 60947-2
Characteristic B (In) 3-5 4
Characteristic C (In) 5-10 8
Characteristic D (In) 10-20 12


●   Thermal operating limit (In): 1.13 - 1.45

●   Rated switching capacity Icn (kA): 10

●   Degree of protection: IP20, with connected conductors

●   Electrical life (times): 10,000

●   Mechanical life (times): 20,000

●   Breaking capacity:


Model Rated voltage(V) Acc. to IEC 60898-1 Acc. to IEC 60947-2

Icn(kA)

Ics(kA) Icu(kA) Ics(kA)
3SB71-63 1P 230/400 16 12 15 7.5
2-4P 400 16 12 15 7.5
3SB71-63H 1P 230/400 10 7.5 10 7.5
2-4P 400 10 7.5 10 7.5


●   Mounting position: Any

   Conductor cross-sections

●   Solid and stranded (mm²): 0.75-35

●   Finely stranded with end sleeve (mm²): 0.75-25

●   Terminal tightening torque (N·m): 2.8

●   Ambient temperature (°C): -25 ~ +45, max. 95 % humidity

●   Storage temperature (°C): -40 ~ +75

●   Altitude (meters): Max 2,000


References

   Additional components: page 189 ~ 191


Instruction of type code

3SB71-63.1


Features

●   The handle being sealable or equipped with padlock bracket avoids dangerous operation changes (ON / OFF)

●   The handle provides a clear indication of the contact position

●   Adequate printing of all data on the front provides long-term identification

●   Energy limiting class: 3

●   The emission of ionized gases is limited to the severest restrictions: 45 mm grid distance

●   This MCB for household in accordance with: IEC 60898 -1, B, C and D tripping characteristics

●   This MCB for industry in accordance with IEC 60947-2 instantaneous tripping characteristics with release B: 4 In, release C: 8 In, release D: 12 In

●   This MCB may be extended with:

●   A wide range of RCDs

●   Full sets of accessories


Add-on devices

3SB71-63.2


Benefits

●   Attractive device design

●   Easily recognizable, color-coded switching position

●   Indication integrated in the handle


3SB71-63.3


Selection and ordering data

IEC 60898-1 16 kA

IEC 60947-2 15 kA

3SB71-63.4



Selection and ordering data

IEC 60898-1 10 kA

IEC 60947-2 10 kA

3SB71-63.5



Tripping characteristic curves

3SB71-63.6

3SB71-63.7


Selectivity

Load side: 3SB71-63,Characteristic B, C

Rated

current

In

(A)

Power supply side: RT16-00 (fuse)
20 25 36 50 63 80 100 125 160

Is(kA)

≤ 2 1.2 4 12 12 12 12 12 12 12
3 0.7 1.2 3.8 5.3 6 6 6 6 6
4
0.6 0.9 2.5 3.8 6 6 6 6 6
6 0.5 0.8 1.9 2.5 4.5 5 6 6 6
10
0.7 1.4 2.2 3.2 3.6 6 6 6
16

1.2 1.8 2.6 3 5.6 6 6
20


1.5 2.2 2.5 4.6 6 6
25


1.3 2 2.2 4.1 5.5 6
32



1.7 1.9 3.8 4.5 6
40




1.7 3 4 5
50




1.5 2.6 3.5 4.5
63





2.4 3.3 4.5


Load side: 3SB71-63,Characteristic B, C

Rated

current

In

(A)

Power supply side: 3SM29-125
16 20 25 32 40 50 63 80 100

Is(kA)

≤ 10 0.19 0.019 0.3 0.4 0.5 0.5 0.5 0.63 0.8
16

0.3 0.4 0.5 0.5 0.5 0.63 0.8
20



0.5 0.5 0.5 0.63 0.8
25




0.5 0.5 0.63 0.8
32




0.5 0.5 0.63 0.8
40








50








63









Back up protection

Load side: 3SB71-63,Characteristic B, C

Rated

current

In

(A)

Power supply side: RT16 series
40 50 63 80 100 125 160

Is(kA)

1~6

40 40 40 40 40 40 40
8~10 40 40 40 40 40 40 40
13 40 40 40 40 35 35 35
16 40 40 40 40 30 30 30
20 40 40 40 40 30 30 30
25 40 40 40 40 30 30 30
32 40 40 40 40 30 30 30
40 40 40 40 40 30 30 30
50 30 30 30 30 30 30 30
63 20 20 20 20 15 15 15


Load side: 3SB71-63,Characteristic B, C

Rated

current

In

(A)

Power supply side: 3SM29
3SM29-125S  3SM29-125H 3SM29-125R 3SM29-250S 3SM29-250H 3SM29-250R

Is(kA)

1~6

15 18 18 15 15 15
10~20 12 15 15 12 12 12
32~40 12 15 15 12 12 12
50~60 12 15 15 12 12 12


Temperature derating

The maximum permissible current in a circuit breaker depends on the ambient temperature where the circuit breaker is placed.

Ambient temperature is the temperature inside the enclosure or switchboard in which the circuit breakers are installed.

The reference temperature is 30 ºC


Ambient temperature

Rated current

(A)

-35


ºC

-30


ºC

-20


ºC

-10


ºC

0


ºC

10


ºC

20


ºC

30


ºC

40


ºC

50


ºC

60


ºC

2

2.60 2.52 2.46 2.38 2.28 2.20 2.08 2.00 1.92 1.86 1.76
4 5.20 2.04 4.92 4.76 4.56 4.40 4.16 4.00 3.84 3.76 3.52
6 7.80 7.56 7.38 7.14 6.84 6.60 6.24 6.00 5.76 5.64 5.28
10 13.20 12.70 2.50 12.00 11.50 11.10 10.60 10.00 9.60 9.30 8.90
16 21.12 20.48 20.00 19.20 18.40 17.76 16.96 16.00 15.36 4.88 14.24
20 26.40 25.60 25.00 24.00 23.00 22.20 21.20 20.00 19.20 8.60 17.80
25 33.00 32.00 31.25 30.00 28.75 27.75 26.50 25.00 24.00 23.25 22.25
32 42.56 41.28 40.00 38.72 37.12 35.52 33.92 32.00 30.72 29.76 28.16
40 53.20 51.20 50.00 48.00 46.40 44.80 42.40 40.00 38.40 37.20 35.60
50 67.00 65.50 63.00 60.50 58.00 56.00 53.00 50.00 48.00 46.50 44.00
63 83.79 81.90 80.01 76.86 73.71 70.56 66.78 63.00 60.48 58.90 55.44


When several simultaneously operating circuit breakers are mounted side by side in a small enclosure, the temperature rise inside the enclosure causes a reduction in current rating. you must then assign the rating (already derated if necessary according to ambient temperature) a downrating factor of 0.8.


Outline and installation dimensions

3SB71-63.7


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