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Frame rating rated current Inm (A) | Number of poles | Rated voltage ln(A) | Rated current In(A) | Rated ultimate short-circuit capacity | Instantaneous tripping current | ||||||||
Breaking current Icu (A)Time constant T(ms) | |||||||||||||
63 | 1 | DC250V | 1,2,3,4,6,10 16,20,25,32 40,50,63 | 10000 | 10 | 8In-12In | |||||||
23 | DC500V | ||||||||||||
4 | DC1000V | ||||||||||||
125 | 1 | DC250V | 80, 100, 125 | 10000 | 10 | 8In-12In | |||||||
23 | DC500V | ||||||||||||
4 | DC1000V |
Standard Time-Current | ||||||||||||||||||
Test | DC test current | Starting state | Trip or no-trip time limit | Expercted putcome | Remark | |||||||||||||
a | 1.05In | Cold state | t≥1h(In≤63A) t≥2h(In>63A) | Does not trip | ||||||||||||||
b | 1.3In | Immediately after a test | t<2h(In>63A) t<1h(In≤63A) | trip | The current rises steadily to the specified value within 5S | |||||||||||||
C | 8In | Cold state | t≥0.2s | Does not trip | Close the auxiliary switch power on | |||||||||||||
12In | t<0.2s | trip |