Korlen New Type Miniature Circuit Breaker with 10ka High Making and Breaking Capability MCB with Ce, CB, Semko, NF, Sirim, SNI,

Model NO.: KNB2-63
Poles Number: 1,2,3,4
Type: Circuit Breaker
Function: Conventional Circuit Breaker, Circuit-Breaker Failure Protection, Overcurrent Protection
Certification: ISO9001-2000, CE, CB, CCC
Patented: Patented Product
ISO: ISO9001
Release Type: B C D
Rated Working Voltage: 240/415V
Rated Frequency: 50/60Hz
Rated Working Current: 6,10,16,20,25,32,40,50,63A
Making and Breaking Capacity: 10ka
Pole: 1,2,3,4
Mechanical Life: 10000
Electric Life: 4000
Trademark: KORLEN
Transport Package: Carton
Specification: 1P 7.78x7.85x17.8mm
Origin: China
HS Code: 8536200000
Model NO.: KNB2-63
Poles Number: 1,2,3,4
Type: Circuit Breaker
Function: Conventional Circuit Breaker, Circuit-Breaker Failure Protection, Overcurrent Protection
Certification: ISO9001-2000, CE, CB, CCC
Patented: Patented Product
ISO: ISO9001
Release Type: B C D
Rated Working Voltage: 240/415V
Rated Frequency: 50/60Hz
Rated Working Current: 6,10,16,20,25,32,40,50,63A
Making and Breaking Capacity: 10ka
Pole: 1,2,3,4
Mechanical Life: 10000
Electric Life: 4000
Trademark: KORLEN
Transport Package: Carton
Specification: 1P 7.78x7.85x17.8mm
Origin: China
HS Code: 8536200000
  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.
Korlen New Type Miniature Circuit Breaker with 10ka High Making and Breaking Capability MCB with Ce, CB, Semko, NF, Sirim, SNI,
Korlen New Type Miniature Circuit Breaker with 10ka High Making and Breaking Capability MCB with Ce, CB, Semko, NF, Sirim, SNI,

 
  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.
Korlen New Type Miniature Circuit Breaker with 10ka High Making and Breaking Capability MCB with Ce, CB, Semko, NF, Sirim, SNI,
Korlen New Type Miniature Circuit Breaker with 10ka High Making and Breaking Capability MCB with Ce, CB, Semko, NF, Sirim, SNI,

 

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