Page 41 - Yueqing Dingqiao Electric Co., Ltd. (English)

Characteristics and Performance
TEZC MCCB from 125A to 600A

TEZC circuit breakers TEZC250N TEZC250H TEZC400N TEZC400H TEZC630N TEZC630H
Fixed version ● ● ● ● ● ●
Plug-in version ● ● - - - -

Number of poles 4 4 3-4 3-4 3-4 3-4

63, 80, 100, 125, 63, 80, 100, 125,
Rated current (A) In at 40 °C 150, 160, 175, 150, 160, 175, 320, 350, 400 320, 350, 400 400, 500, 600 400, 500, 600
200, 225, 250 200, 225, 250
Rated insulation voltage (V) Ui 690 690 690 690 690 690
Rated impulse withstand voltage (kV) Uimp 6 6 6 6 6 6
Rated operational voltage (V) Ue AC 50/60 Hz 550 550 440 440 440 440
DC 250 250 250 250 250 250
Electrical characteristics as per IEC 60947-2, EN 60947-2 and JIS C8201-2-1/C8201-2-2

Ultimate breaking capacity (kA rms) Icu AC 50/60 Hz 220/230/240 V 50 85 40 70 40 70
380 V 25 36 36 50 36 50
400/415 V 25 36 36 50 36 50
440 V 20 25 36 50 36 50
550 V 8 10 - - - -
DC 125 V (1P) 20 30 - - - -
250 V(2P in series) 20 30 - - - -
Rated service breaking capacity (kA rms) Ics % Icu 50 % 50 % - - - -
Suitability for isolation ● ● ● ● ● ●
Utilisation category A A A A A A
Pollution degree 3 3 3 3 3 3
Endurance (C-O cycles) Mechanical 10000 10000 10000 10000 10000 10000
Electrical In/415 V 5000 5000 4000 4000 3000 3000
Electrical characteristics as per NEMA-AB1
Breaking capacity (kA rms) HIC AC 50/60 Hz 240 V 50 85 50 85 50 85
277/480 V 18 25 25 35 25 35
Protection
Overload protection Bimetal fixed fixed fixed fixed fixed fixed
10 In (400/500A) 10 In (400/500A)
Instantaneous protection Magnetic Fixed (±20 %) 10 In 10 In 10 In 10 In
5000A (600A) 5000A (600A)
Earth-leakage protection
Sensitivity (A) IΔn adjustable - - - - - -
Time-delay (ms) Δt adjustable - - - - - -
Max. breaking time (s) at 2 IΔn - - - - - -
Dimension and weight
Dimensions (mm) D x H 68 x 165 68 x 165 110 x 255 110 x 255 110 x 255 110 x 255
140 (3P) 140 (3P) 140 (3P) 140 (3P)
W 140 140
185 (4P) 185 (4P) 185 (4P) 185 (4P)
4.8 (3P) 4.8 (3P) 4.8 (3P) 4.8 (3P)
Weight (kg) 1.8 1.8
6.4 (4P) 6.4 (4P) 6.4 (4P) 6.4 (4P)

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