Page 7 - Yueqing Dingqiao Electric Co., Ltd. (English)

Characteristics and Performance
TNS MCCB from 800A to 1600A

circuit breakers TNS800 TNS1000 TNS1250 TNS1600

Number of poles 3, 4 3, 4 3, 4 3, 4
toggle ● ● ● ●
manual
Control direct or extended rotary handle ● ● ● ●
electric ● ● ● ●
Type of circuit breaker N H N H N H N H
front connection ● ● ● ● ● ● ● ●
fixed rear connection ● ● ● ● ● ● ● ●
Connections front connection with bare cables ● ● ● ● ● ● - -
withdrawable front connection ● ● ● ● ● ● ● ●
(on chassis)
rear connection ● ● ● ● ● ● ● ●
Electrical characteristics as per IEC 60947-2 and EN 60947-2
50 °C 1000 1000 1250 1600
Rated current (A) In
65 °C 1000 1000 1250 1510
Rated current (A) Ui 800 800 800 800
Rated impulse withstand voltage (kV) Uimp 8 8 8 8
AC 50/60
Rated operational voltage (V) Ue 690 690 690 690
Hz
Type of circuit breaker N H N H N H N H
220/240 V 85 85 85 85 85 85 85 85

380/415 V 50 70 50 70 50 70 50 70
AC
lcu 440 V 50 65 50 65 50 65 50 65
50/60 Hz
500/525 V 40 50 40 50 40 50 40 50
Ultimate breaking 660/690 V 30 42 30 42 30 42 30 42
capacity (kA rms) Manual
220/240 V 50 52 50 52 50 52 37 37
380/415 V 50 52 50 52 50 52 37 37
AC
lcs 440 V 50 48 50 48 50 48 37 37
50/60 Hz
500/525 V 40 37 40 37 40 37 30 30
660/690 V 30 31 30 31 30 31 22 22
lcw AC 1 s 19.2 19.2 19.2 19.2 19.2 19.2 19.2 19.2
Short-time withstand current (kA rms)
50/60 Hz 3 s - - - - - - - -
Integrated instantaneous protection kA peak ±10 % 40 40 40 40 40 40 40 40
Suitability for
isolation ● ● ● ●
Utilisation category B B B B B B B B
mechanical 10000 10000 10000 10000
In/2 6000 6000 6000 6000 5000 5000
440 V
Durability (C-O In 5000 5000 5000 5000 4000 2000
cycles)
electrical
In/2 4000 4000 4000 4000 3000 2000
690 V
In 2000 2000 2000 2000 2000 1000
Pollution degree 3 3 3 3

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