Page 17 - Yueqing Dingqiao Electric Co., Ltd. (English)

Characteristics and Performance
TNSX MCCB from 400A to 630A

Common characteristics
With toggle ●
Control Manual
With direct or extended rotary handle ●
Versions Fixed ●

Circuit breakers TNSX400 TNSX630
Breaking capacity levels F N H F N H
Electrical characteristics as per IEC/EN 60947-2
Rated current (A) In 40 °C 400 630
Number of poles 3, 4 3, 4
Breaking capacity (kA rms)
220/240 V 40 85 100 40 85 100
380/415 V 36 50 70 36 50 70
440 V 30 42 65 30 42 65
lcu AC 50/60 Hz
500 V 25 30 50 25 30 50
525 V 20 22 35 20 22 35
660/690 V 10 10 20 10 10 20
Service breaking capacity (kA rms)
220/240 V 40 85 100 40 85 100
380/415 V 36 50 70 36 50 70
440 V 30 42 65 30 42 65
lcs AC 50/60 Hz
500 V 25 30 50 25 30 50
525 V 10 11 11 10 11 11
660/690 V 10 10 10 10 10 10
Durability (C-O cycles) Mechanical 15000 15000
Characteristics as per UL 508
240 V 85 85 85 85 85 85
Breaking capacity (kA rms) AC 50/60 Hz 480 V 35 50 65 35 50 65
600 V 20 10 20 20 20 20
Protection and measurements ● ●
Short-circuit protection Magnetic only - -
Thermal magnetic ● ●
● ●
with neutral protection (Off-0.5-1-OSN) ● ●
Electronic
with ground-fault protection ● ●
with zone selective interlocking (ZSI) ● ●
By Vigi add-on ● ●
Earth-leakage protection
By Vigirex relay ● ●
Installation / connections
Dimensions and weights
Dimensions (mm) Fixed, front connections 2/3P 140 x 255 x 110 140 x 255 x 110
W x H x D 4P 185 x 255 x 110 185 x 255 x 110
2/3P 6.05 6.2
Weight (kg) Fixed, front connections
4P 7.90 8.13
Connections
Connection terminals Pitch With/without spreaders 45/52.5 mm，45/70 mm 45/52.5 mm，45/70 mm
Large Cu or Al cables Cross-section mm² 4 x 240 4 x 240
Source-changeover system
Manual mechanical interlocking ● ●
Automatic source-changeover ● ●

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