Company Details

  • Wenzhou Korlen Electric Appliances Co., Ltd.

  •  [Zhejiang,China]
  • Business Type:Distributor/Wholesaler , Manufacturer , Service , Trade Company
  • Main Mark: Africa , Americas , Asia , Caribbean , East Europe , Europe , Middle East , North Europe , Oceania , Other Markets , West Europe , Worldwide
  • Exporter:91% - 100%
  • Certs:ISO14001, ISO9001, ISO9002, CB, CE, EMC, RoHS, TUV, UL, OHSAS18001, CCC
  • Description:MCB,Circuit Breaker,Miniature Circuit Breaker
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Wenzhou Korlen Electric Appliances Co., Ltd.

MCB,Circuit Breaker,Miniature Circuit Breaker

Home > Products > Circuit Breaker > Miniature Circuit Breaker > Distribution box dedicated miniature circuit breaker MCB 1A-63A with IEC60898 Certification

Distribution box dedicated miniature circuit breaker MCB 1A-63A with IEC60898 Certification

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    Unit Price: USD 0.54 / Bag/Bags
    Payment Type: T/T
    Incoterm: FOB,CFR
    Min. Order: 2400 Bag/Bags
    Delivery Time: 30 Days

Basic Info

Model No.: knb1-63

Breaking Capacity: Low Voltage Circuit Breakers

Operation: Manual Type

Speed: High-Speed Circuit Breaker

Arc-extinguishing Medium: Air

Installation: Fixed

Structure: MCB

Poles Number: 1

Type: Circuit Breaker

Function: Circuit-Breaker Failure Protection

Certification: CCC, CB, CE, ISO9001-2000

Rated Voltage: 240/415V

Rated Working Current: 1 2 3 4 6 10 16 20 25 32 40 50 63A

Mechanical Life: 10000

Electric Life: 4000

Additional Info

Packaging: carton

Transportation: Ocean

Port: Ningbo,Shanghai,Guangzhou

Product Description


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 6000 6000
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.

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