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How to reduce DC Isolating Switch failure frequency?
To fundamentally reduce the failure rate of DC isolating switch, you need a three-pronged strategy: selecting arc-resistant, certified components, such as Suntree's specialized models;
• 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.
• 630A frame size with arc shield effectively isolate the external arc.
• International CertificationTUV、CE、CB.
| Product model | SM8-630HPV /4 1500V |
| Product name | PV DC MCCB |
| Rated service voltage Ue | DC1500V |
| Rated insulation voltage Ui | 1500V |
| Rated impulse withstand voltage Uimp | 12kV |
| Numbers of poles | 4 |
| Trip type | Thermal magnetic (thermal magnetic non adjustable) TMD fixed |
| Manufacturing standards | GB14048.2，IEC/EN 60947-2 |
| Use category | A(PV-1) |
| Current shell frame In | 630A |
| Rated service current le | 350/400/500/630A |
| Breaking type | H |
| Ultimate short circuit breaking capacity Icu | Ue1500v 15kA Ue1500v 15kA |
| Rated service short-circuit breaking capacity Ics |
Ue1500v 15kA Ue1500v 15kA |
| Curent setting Ir | 1In |
| Instantaneous short circuit protection Li | 6In (Min 1000A) |
| Mechanical life | 10000Times |
| Electrical life | 2000Times |
| Overall dimensions L×W×H | Type H:310×240×155mm Type H:350×240×155mm |
| Installation mode | Fixed |
| Ingress protection | Wiring terminal: P20/all sides:IP40 |
| Relative humidity | Not more than 95% at +50C |
| With wiring polarity requirements or not | NO |
| Class of pollution | Level 3 |
| Service temperature | -40℃-+75℃ |
| Operation indications | ON/OFF indication |
| Whether the trip is adjustable | ON |
| Electrical accessories | Option: shuntauiliary/alarm (note: only one set of auxiliary, alarm and shunt can be installed on the left and right side) 2P only on the left side |
| Isolating function | Yes |
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