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Why DC Combiner Box Is Essential for PV Systems
If you're a solar system buyer, installer, or project manager, let's get straight to the point—you're here because you need a definitive answer: Does your solar system really need a DC combiner box? A
• UV resistance and VO flame retardant material
• Contact Silver Plating, silver layer thickness up to the industry's highest standards
• Arcing Time in 3 ms
• No Polarity
• Lockable at OFF position
• IEC/EN60947.3 standard and AS 60947.3
• Provide 5-year warranty product guarantee
| MAIN PARAMETERS | SISO-60 | ||
| Rated Insulation Voltage | Ui | V | 1500 |
| Rated thermal current | Ith | A | 32 |
| Rated impulse withstand voltage | Uimp | V | 8000 |
| Rated short-circuit making capacity | lew | A | 1kA,1S |
| MAXIMUM CABLE CROSS SECTIONS (INCL. JUMPER) | |||
| Solid | mm² | 416 | |
| Flexible | mm² | 410 | |
| Flexible(+multicore cable end) | mm² | 410 | |
| TORQUE | |||
| Tightening torque terminal screws M4 | Nm | 1.2-1.8 | |
| Tightening torque shell mounting screws ST4.2(304 stainless steel) | Nm | 1.5-2.0 | |
| Tightening torque knob screws M3 | Nm | 0.5-0.7 | |
| Switching on or off Torque | Nm | 0.9-1.3 | |
| The wiring Torque on Base | Nm | 1.1-1.4 | |
| GENERAL PARAMETERS | |||
| Knob positions | 9 o'clock, OFF 12 oclock,ON | ||
| Electrical Life | Actua | 3000 Cycles | |
| Standard | 300 Cycles | ||
| Mechanical Life | Actua | 10000 Cycles | |
| Standard | 10000 Cycles | ||
| Number of DC poles | 2 or 4 | ||
| Rated shortime withstand curent(1s)(lcw) | ℃ | -40 to +85 | |
| Distance of contacts (per pole) | ℃ | -40 to +85 | |
| Pollution degree | 3 | ||
| Overoltage category | Ⅲ | ||
| IP rating of shafte and mounting nut | IP65 | ||
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