| 4.1 Rating of circuit breaker (see table 2) | Model | NM1-63S |
| Frame rating rated current (A) | 63 |
| Rated current (A) | 10, 16, 20, 25, 32, 40, 50, 63 |
| Rated operating voltage Ue(V) | 240/415 |
| Rated insulation voltage Ui(V) | 800 |
| Rated impulse withstand voltage Uimp(kV) | 8 |
| Rated ultimate short-circuit breaking capacity (kA) | 35/25/- |
| Rated operating short-circuit breaking capacity (kA)/240V/415V/690V | 18/13/- |
| Maintainable mechanical life (times) | 20000 |
| Electrical AC415V (times) | 3000 |
| Number of poles | 3, 4 |
| Arc distance (mm) | ≤ 50 |
| Model number | NM1-125S |
| Frame rating rated current (A) | 125 |
| Rated current (A) | 16, 20, 25, 32, 40, 50, 63, 80, 100, 125 |
| Rated operating voltage Ue(V) | 240/415/690 |
| Rated insulation voltage Ui(V) | 800 |
| Rated impulse withstand voltage Uimp(kV) | 8 |
| Rated ultimate short-circuit breaking capacity (kA) | 50/35/8 |
| Rated operating short-circuit breaking capacity (kA)/240V/415V/690V | 30/18/4 |
| Maintainable mechanical life (times) | 20000 |
| Electrical AC415V (times) | 3000 |
| Number of poles | 2, 3 |
| Arc distance (mm) | ≤ 50 |
| Model number | NM1-250S |
| Frame rating rated current (A) | 250 |
| Rated current (A) | 160, 180, 200, 225, 250 |
| Rated operating voltage Ue(V) | 240/415/690 |
| Rated insulation voltage Ui(V) | 800 |
| Rated impulse withstand voltage Uimp(kV) | 8 |
| Rated ultimate short-circuit breaking capacity (kA) | 50/35/8 |
| Rated operating short-circuit breaking capacity (kA)/240V/415V/690V | 30/18/4 |
| Maintainable mechanical life (times) | 20000 |
| Electrical AC415V (times) | 3000 |
| Number of poles | 2, 3 |
| Flashover distance (mm) | ≤ 50 |
| 4.2 The inverse time opening operating characteristics of the overcurrent release of the distribution circuit breaker when all poles are energized at the same time (see table 3) | Serial number | 1 |
| Test current name | Agreed non-tripping current |
| I/In | 1. 05 |
| Appointed time | 2h (In>63A), 1h (In≤63A) |
| Initial state | Cold state |
| Serial number | 2 |
| Test current name | Agreed tripping current |
| I/In | 1.30 |
| Appointed time | 2h (In>63A), 1h (In≤63A) |
| Initial status | Following the sequence number 1 Start after the test |
| 4.3 The inverse time opening action characteristics of the overcurrent release of the circuit breaker for motor protection when all poles are energized at the same time (see table 4) | Serial number | 1 |
| I/In | 1.0 |
| Appointed time | >2h |
| Initial state | Cold state |
| Preparation Note | |
| Serial number | 2 |
| I/In | 1 .2 |
| Appointed time | ≤2h |
| Initial status | Following the sequence number 1 Start after test |
| Remarks | |
| Serial number | 3 |
| I/In | 1.5 |
| Appointed time | ≤2min |
| Initial state | Hot state |
| Remarks | 10A≤In≤ 25A |
| Serial number | 4 |
| I/In | 7.2 |
| Appointed time | 0.5s ≤T≤5s
6s≤T≤20s |
| Initial state | Cold state |
| Remarks | 32A |
| 4.4 Instantaneous operating characteristics of distribution circuit breakers (see Table 5) | Frame rating rated current In(A) | 63 |
| Rated current In(A) | 10~63 |
| Short-circuit protection current setting method | Fixed |
| Short-circuit protection current setting value Il(A) And tolerance | 10In, ±20% |
| Unipolar short-circuit protection current action setting value Il(A) | 12In |
| Tripping time (s) | <0.2 |
| Frame rating rated current In(A) | 125 |
| Rated current In(A) | 16~125 |
| Short-circuit protection current setting method | Fixed |
| Short-circuit protection current setting value Il(A) And tolerance | 10In, ±20% |
| Unipolar short-circuit protection current action setting value Il(A) | 12In |
| Tripping time (s) | <0.2 |
| Frame rating rated current In(A) | 250 |
| Rated current In(A) | 100~250 |
| Short-circuit protection current setting method | Fixed |
| Short-circuit protection current setting value Il(A) And tolerance | 10In, ±20% |
| Unipolar short-circuit protection current action setting value Il(A) | 12In |
| Tripping time (s) | <0.2 |
| Instantaneous operating characteristics of circuit breaker for motor protection (see Table 6) | Frame rating rated current In(A) | 63 |
| Rated current In(A) | 10~63 |
| Short-circuit protection current setting method | Fixed |
| Short-circuit protection current setting value Il(A) And tolerance | 12In,±20% |
| Unipolar short-circuit protection current action setting value Il(A) | 14In |
| Tripping time (s) | <0.2 |
| Frame rating rated current In(A) | 125 |
| Rated current In(A) | 16~125 |
| Short-circuit protection current setting method | Fixed |
| Short-circuit protection current setting value Il(A) And tolerance | 12In,±20% |
| Unipolar short-circuit protection current action setting value Il(A) | 14In |
| Tripping time (s) | <0.2 |
| Frame rating rated current In(A) | 250 |
