Communicate with Supplier? Supplier
Chen Ms. Chen
What can I do for you?
Contact Supplier
 Tel:86-577-62207777
Home > Products > Miniature Circuit Breaker > KNB2-63 Miniature Circuit Breaker > new type mini circuit breaker 4P 10KA capacity
new type mini circuit breaker 4P 10KA capacity
new type mini circuit breaker 4P 10KA capacity
new type mini circuit breaker 4P 10KA capacity
  • new type mini circuit breaker 4P 10KA capacity
  • new type mini circuit breaker 4P 10KA capacity
  • new type mini circuit breaker 4P 10KA capacity

new type mini circuit breaker 4P 10KA capacity

    Unit Price: USD 1 / Carton
    Payment Type: T/T
    Incoterm: FOB,CFR
    Min. Order: 10 Carton

Basic Info

Model No.KNB2-63

BrandKORLEN / YOUTS

Breaking CapacityLow Voltage Circuit Breakers

OperationManual Type

SpeedHigh-Speed Circuit Breaker

Arc-extinguishing MediumAir

InstallationFixed

StructureMcb

Poles Number1

TypeCircuit Breaker

FunctionCircuit-Breaker Failure Protection

CertificationIso9001-2000

Rated Voltage240/415v

Rated Working Current1 2 3 4 6 10 16 20 25 32 40 50 63a

Mechanical Life10000

Electric Life4000

Pole1 2 3 4

DINDin Type

Release TypeB C D

Making And Breaking Capacity10ka

Additional Info

Packagingcarton

Productivity2000000pcs/month

TransportationOcean

Place of OriginWENZHOU ZHEJAING CHINA

Supply Ability2000000pcs/month

CertificateISO9001/ISO14001

HS Code8536200000

PortNingbo,Shanghai,Guangzhou

Payment TypeT/T

IncotermFOB,CFR

Product Description

Miniature Circuit Breaker
Electronics Miniature Circuits Breaker
Automatic Miniature Circuit Breaker
Mini Circuit Breaker
MCB





Standard

IEC/EN 60898-1
IEC/EN 60947-2
Electrical features Rated current In
A         1, 2, 3, 4, 6, 10, 13, 16, 20, 25, 32, 40, 50,63
Poles

1P, 1P+N, 2P, 3P, 3P+N, 4P
1P, 2P, 3P, 4P
Rated voltage Ue
V                                 230/400~240/415
Insulation voltage Ui
V 500
Rated frequency

50/60Hz
Rated breaking capacity
A 10000 10000
Energy limiting class

3
Rated impulse withstand voltage(1.2/50) Uimp
V 4000
Dielectric test voltage at ind. Freq. for 1 min
KV 2 1.890
Pollution degree

2
Power loss per pole
Rated current (A) 
Max power loss per pole (W)

1, 2, 3, 4, 6, 10
2

16, 20, 25, 32
3.5

40, 50, 63
5
Thermo-magnetic release characteristic

B, C, D
(8-12)In
Mechanical features Electrical life

4000
Mechanical lif

20000
Contact position indicator

YES
Protection degree

IP20
Reference temperature for setting of thermal element

ºC
30
Ambient temperature (with
daily average≤35ºC)
ºC
-5...+40
Storage temperation
ºC
-25...+70
Installation Terminal connection type

Cable/U-type busbar/Pin-type busbar
Terminal size top/bottom for  cable mm2
25
AWG
18-4
Terminal size top/bottom for  busbar mm2
10
AWG 18-8
Tightening torque N·m 2.5
In-Ibs. 22
Mounting
On DIN rail EN 60715 (35mm) by means of fast clip device
Connection
From top and bottom
Combination with accessories Auxiliary contact
YES
Shunt release
YES
Under voltage release
YES
Alarm contant
YES

    1. Selectivity





Load side: K    NB1-63, KNB1-63H
Curve B, C
In (A) Power supply side: RT36-00 (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: KNB1-63, KNB1-63H
Curve B, C
In (A) Power supply side: NM8-100S/H/R
16 20 25 32 40 50 63 80 100
Is (kA)
≤10 0.19 0.19 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 0.63 0.8
40






0.63 0.8
50







0.8
63








    1. Backup protection




Load side:K NB1-63, KNB1-63H
Curve B, C
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: KNB1-63, KNB1-63H
Curve B, C
In (A) Power supply side: NM8
NM8-125S NM8-125H NM8-125R NM8-250S NM8-250H NM8-250R
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


    1. 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 30ºC


Ambient temperature












-35ºC -30ºC -20ºC -10ºC 0ºC 10ºC 20ºC 30ºC 40ºC 50ºC 60ºC 70ºC
Rated current(A)











1 1.30 1.26 1.23 1.19 1.15 1.11 1.05 1.00 0.96 0.93 0.88 0.83
2 2.60 2.52 2.46 2.38 2.28 2.20 2.08 2.00 1.92 1.86 1.76 1.66
3 3.90 3.78 3.69 3.57 3.42 3.30 3.12 3.00 2.88 2.79 2.64 2.49
4 5.20 5.04 4.92 4.76 4.56 4.40 4.16 4.00 3.84 3.76 3.52 3.32
6 7.80 7.56 7.38 7.14 6.84 6.60 6.24 6.00 5.76 5.64 5.28 4.98
10 13.20 12.70 12.50 12.00 11.50 11.10 10.60 10.00 9.60 9.30 8.90 8.40
16 21.12 20.48 20.00 19.20 18.40 17.76 16.96 16.00 15.36 14.88 14.24 13.44
20 26.40 25.60 25.00 24.00 23.00 22.20 21.20 20.00 19.20 18.60 17.80 16.8
25 33.00 32.00 31.25 30.00 28.75 27.75 26.50 25.00 24.00 23.25 22.25 21.00
32 42.56 41.28 40.00 38.72 37.12 35.52 33.92 32.00 30.72 29.76 28.16 26.88
40 53.20 51.20 50.00 48.00 46.40 44.80 42.40 40.00 38.40 37.20 35.60 33.6
50 67.00 65.50 63.00 60.50 58.00 56.00 53.00 50.00 48.00 46.50 44.00 41.50
63 83.79 81.90 80.01 76.86 73.71 70.56 66.78 63.00 60.48 58.90 55.44 52.29

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 temperatuer) a downrating factor of 0.8.

page_000002page_000010

Product Categories : Miniature Circuit Breaker > KNB2-63 Miniature Circuit Breaker

Email to this supplier
  • Ms. Chen
  • Your message must be between 20-8000 characters

Home

Phone

Skype

Inquiry