Function and use
NM5NE high voltage (HV) series plastic case circuit breaker, suitable for AC 50Hz/60Hz, rated voltage AC1140V and below, rated current 10A to 630A It can make, break and carry the rated operating current in the circuit, and can reliably protect the lines and electrical equipment when overload, short circuit and under voltage occur. It can also be used as infrequent starting and overload and short circuit protection of the motor.
Detailed description
Parameters:
Rated working voltage: AC415V, 690V, 800V, 1000V, 1140V
Frame current: 250A, 320A, 400A, 630A
Using ambient temperature: -4 0°C~+70°C
Detailed parameters
| Parameter classification | Parameter items | Parameter values |
|---|
| AC molded case circuit breaker | NM5NE-250HV | |
| NM5NE-320HV | |
| NM5NE-400HV | |
| NM5NE-630HV | |
| Frame rating rated current Inm(A) | 250 | 320 400 630 |
| Rated insulation voltage U(I)(V) | 1250 | 1250 1250 1250 |
| Rated impulse withstand voltage Uimp(KV) | 8 | 8 8 8 |
| Rated operating voltage Ue(V) | 415/690/800/1000/1140 | 415/690/800/1000/1140 415/690/800/1000/1140 415/690/800/1000/1140 |
| Rated operating current In, 40℃ | 10/16/20/25/32/40/50/63/80/100/125/160/180/200/225/250 | 63/80/100/125/160/180/200/225/250/320 250/315/350/400 400/500/630 |
| Breaking capacity code (3P) | F | Q F Q F Q F Q |
| Rated limit short circuit breaking capacity Icu(kA) | AC415V | 70 100 70 100 70 100 70 100 |
| AC690V | 40 50 50 50 50 65 50 65 |
| AC800V | 40 40 50 50 40 50 40 50 |
| AC1000V | 12 12 12 12 15 15 15 15 |
| AC1140V | 12 12 12 12 12 12 12 12 |
| Rated operating short-circuit breaking capacity Ics (kA) | AC415V | 70 100 70 100 70 100 70 100 |
| AC690V | 40 50 40 50 50 65 50 65 |
| AC800V | 30 40 40 50 40 50 40 50 |
| AC1000V | 12 12 12 12 15 15 15 15 |
| AC1140V | 12 12 12 12 12 12 12 12 |
| Mechanical life (times) | Maintenance-free | 20000 20000 10000 10000 |
| Electrical life (times) | AC800V | 1500 1500 1500 1500 |
| AC1140 | 1000 1000 1000 1000 |
| Outline dimensions (mm) (W(3P)×(H (including terminal box)×D) | W(3P) | 105 120 140 140 |
| H (including terminal box) | 230 245 315 315 |
| D | 106 112 124 124 |
| Note: 1. Only 32A and above can provide thermal magnetic protection, and 32A and below can only provide magnetic protection specifications. | | |
