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SMA BatFuse B.01 NH01/2x250A

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SMA BatFuse B.01 NH01/2x250A
DC fuse for Sunny Island battery inverters - Sunny Island 3.0M / 4.4M / 6.0H / 8.0H

Increased safety for your on- or off-grid storage system: As an external DC distribution board, the BatFuse secures the Sunny Island’s battery connection cables. It also ensures all-pole battery fuse protection and allows the inverters to be disconnected from voltage sources. Depending on the variant, the devices offer up to three inverter connections and up to six connections on the DC side. Additionally, the BatFuse features a battery voltage tap, which can be used for supplying external DC loads.


  • External, cost-effective DC fuse and distribution board
  • For currents of between 63 A and 250 A
  • Easy wall mounting
  • Standardized connections with M8 tube terminal lugs
  • Can be used for off-grid and on-grid applications


  • Variants available for all Sunny Islands
  • Up to three Sunny Islands can be connected on the inverter side and up to six DC connections on the battery side
  • Battery voltage tap for DC loads

Safe and Reliable

  • All-pole battery fusing
  • Easy disconnection of the inverters
  • High degree of protection IP 65

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