Description

4 Pole DC Breaker DC MCB 2P 20A 32A 63A 1000VDC

Product Overview

• Full Title: 4 Pole DC Breaker DC MCB 2P 20A 32A 63A 1000VDC (note: title says “100vdc” but specs confirm 1000V DC—likely a typo in the URL/title).
• Brand/Manufacturer: Generic/high-grade (sold by Macire; similar to Suntree or other Chinese brands common in Kenya like those from Estrex Solar or Onccy).
• Variants: Available in 20A, 32A, 63A ratings; 4-pole configuration (often wired as 2P effectively for DC, but 4P for higher voltage isolation).
• Key Role in Solar Systems: Provides overload and short-circuit protection for DC circuits, plus manual switching. It’s commonly used in solar PV setups for string protection, combiner boxes, or between panels and inverters/charge controllers.
  

  Features & Benefits

  • Excellent arc extinguishing for DC (challenging due to no natural zero-crossing like AC).
  • Thermal-magnetic trip for reliable overload/short-circuit protection.
  • Fast electromagnetic trigger for instant fault response.
  • Compact design, easy DIN rail installation.
  • Wide humidity tolerance (up to 95%) and altitude (up to 2000m).
  • Long lifespan and safe for high-performance DC applications.

  Applications in Solar PV

  • Ideal for solar photovoltaic systems (string protection, DC distribution).
  • Marine power, renewable energy setups, or general DC loads.
  • Provides automatic protection (trips on faults) + manual on/off switching.
  • Often paired with fuses, surge protectors (SPD), or isolators in combiner boxes.