Page 161 - 温州西卡电器有限公司（WENZHOU XIKA ELECTRICAL CO.,LTD.）

Wenzhou Xika
Electrical Co.,Ltd.

> SK20 Series moulded case circuit breaker

> Application
SK20 series Moulded Case Circuit Breaker is applicable circuit of AC 50/60Hz, rated current up to
400A, for distribute energy of electricity & infrequent making & breaking circuit in normal conditions.
The products conforms to IEC60947-2.
> Specification

Type SK2040 SK2050 SK2060
Poles number 3 3 3
Rated current In(A) 10~63 80~125 125~160
SK2040
Rated working voltage Ue(V) (50/60Hz) 660 380 400
–
Rated working voltage Ue (V) 250 250 250
---
Rated insulation voltage Ui~(V) 660 380 400
Rated impulse voltage Uimp(kV) 6 6 8
Utilisation category A A A
230/240V~ 16 36 36
400/415V~ 10 20 30
Rated limited 440V~ 8 14 25
short-circuit breaking 480/500V~ - - 20
capacity Icu(kA) 600V~ - - 16
690V~ - - -
–
250V --- 16 - 36
SK2060 Rated short-circuit breaking service capacity Ics(%Icu) 100 100 100
Mechanical life 7000 7000 7000
Electrical life 1000 100 1000

> SK57 Series moulded case circuit breaker

> Application
SK57 series Moulded Case Circuit Breaker is applicable circuit of AC 50/60Hz, rated insulation voltage
690V, rated current 16-250A, for distribute energy of electricity & infrequent making & breaking circuit
in normal conditions, protecting when circuit is overloaded, short circuit. The products conforms to
SK57-31 IEC60947-2 standard.
> Specification

Type SK57-31 SK57-35 SK57-39
Poles number 3 3 3
16, 20, 32, 40, 50, 16, 20, 32, 40, 50, 250,320,400,
Rated current In(A) 63, 80, 100 63, 80,100, 160, 500,630
200, 250
Utilisation category A A A
Rated ultimate short-circuit breaking capacity 60 15 40
Icu(kA) at 415V
www.seicae.com
Rated short-circuit service breaking capacity 100 100 100
Ics(%Icu) at 415V
SK57-35

>E 150