General
LNSX series is a high-performance moulded case circuit breaker manufactured in Zhejiang, China. The frame grades can be selected from 100A, 160A, 250A, 400A and 630A
Its compact design combines safety and reliability for various industrial applications requiring robust circuit protection. The product's multiple breaking capacity options make it adaptable to different power system requirements.
Technical Parameters
| model |
| LNSX-100 | LNSX-160 | LNSX-250 | LNSX-400 | LNSX-630 |
| Current shell frame |
| 100 | 160 | 250 | 400 | 630 |
| Poles |
| 3 | 4 | 3 | 4 | 3 | 4 | 3 | 4 | 3 | 4 |
| size | L(mm) | 105 | 140 | 105 | 140 | 105 | 140 | 140 | 185 | 140 | 185 |
| H(mm) | 161 | 161 | 161 | 161 | 161 | 161 | 255 | 255 | 255 | 255 |
| D(mm) | 86 | 86 | 86 | 86 | 86 | 86 | 110 | 110 | 110 | 110 |
| weight |
| 2.05 | 2.4 | 2.2 | 2.6 | 2.4 | 2.8 | 6.05 | 7.9 | 6.2 | 8.13 |
| Limit breaking ability ICU |
| L | S | H | N | F | L | S | H | N | F | L | S | H | N | F | L | S | H | N | F | L | S | H | N | F |
| AC220/240V/(KA) |
| 85 | 90 | 100 | 120 | 150 | 85 | 90 | 100 | 120 | 150 | 85 | 90 | 100 | 120 | 150 | 40 | 85 | 100 | 120 | 150 | 40 | 85 | 100 | 120 | 150 |
| AC380/415V/(KA) |
| 36 | 50 | 70 | 100 | 150 | 36 | 50 | 70 | 100 | 150 | 36 | 50 | 70 | 100 | 150 | 36 | 50 | 70 | 100 | 150 | 36 | 50 | 70 | 100 | 150 |
| Use the breaking power %ICU |
| 100 | 100 | 100 | 100 | 100 |
| Machine life(times) |
| 50000 | 40000 | 20000 | 15000 | 15000 |
| Electrical life(times) | 415V In | 30000 | 20000 | 10000 | 7000 | 7000 |
| 440V-In/2 | 50000 | 40000 | 20000 | 12000 | 8000 |
| 440V-In | 30000 | 20000 | 10000 | 6000 | 4000 |
| Rated insulation voltage(V) |
| AC800 | AC800 | AC800 | AC800 | AC800 |
| Rated operating voltage(V) |
| AC690 | AC690 | AC690 | AC690 | AC690 |
| Item No. | NSX100-250 | NSX400-630 |
| Number of poles |
| 3P, 4P |
| Control | Manual | with toggle |
| with direct or extended rotary handle |
| Connections | Fixed | front connections |
| Plug-in | front connections/rear connections |
| Electrical characteristics as per IEC60947 and EN60947-2 |
| Rated current(A) | In | 16,25,32,40,50,63,80,100,125,160,200,250 | 400,500,630 |
| Rated insulation voltage(V) | Ui | 800 |
| Rated impulse withstand voltage(kV) | Uimp | 8 |
| Rated operational voltage(V) | Ue | AC 50/60Hz,690 |
| Utilization category |
| A |
| Breaking capacity levels |
| F N H |
| Breaking capacity (kA rms) | lcu | 36, 50, 70 |
| AC 50/60 Hz 380/415 V |
| Service breaking capacity (kA rms) | lcs | 36, 50, 70 |
| AC 50/60 Hz 380/415 V |
| Operation performance | Mechanical | 20000 | 10000 |
| Electrical | 10000 | 5000 |
| Protection |
| Chart B-1 B-2 |
| Indication and control auxiliaries |
| Auxiliary switch |
| ■ |
| MX Shunt coil |
| ■ |
| MN under-voltage coil |
| ■ |
100-250 Dimensional drawing
400-630 Dimensional drawing
Yueqing Lovadon Electric Co., Ltd.
