• Labyrinth arc extinguisher Prevent the spread of arcs in current surges.
• Built-in double row moving contacts Increase the arc voltage.
• Easy to install accessories Realize multiple protections (excitation, auxiliary, alarm etc.)
• Base is made of DMC material VO flame retardant.
• International CertificationTUV、CE、CB.
| Product model | SM8-125 | SM8-250 | SM8-400 | SM8-630 | ||
| Model frame rating Maximum rated current(A) | 125 | 250 | 400 | 630 | ||
| Rated current(InA) | 16/20/25/32/40/ 50/63/80/100/125 |
100/125/160/180/ 200/225/250 |
225/250/315/ 350/400 |
400/500/630 | ||
| Number of Poles | 2/3、4 | 2/3、4 | 3/4 | 3/4 | ||
| Rated insulation voltage(UiV) | AC1000 | AC1000 | AC1000 | AC1000 | ||
| Rated operating voltage(UeV) | AC400V/AC415V/690V | AC415V/690V | ||||
| Rated impulse withstand voltage(UimpV) | 8KV | |||||
| Ultimate short circuit breaking capacity Icu(KA) | 400 | L | 36 | 36 | 85 | 100 |
| M | 55 | 55 | ||||
| H | 85 | 85 | ||||
| 690 | H | - | - | 20 | 30 | |
| Running short circuit breaking capacity Icu(KA) | 400 | L | 27 | 27 | 65 | 75 |
| M | 42 | 42 | ||||
| H | 63 | 63 | ||||
| 690 | H | - | - | 15 | 20 | |
| Operational performance/time | On Power | 3000 | 2000 | |||
| No Power | 15000 | 10000 | ||||
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