Product Details
Automatic transfer switch, suitable for the SMA 'Flexible Storage System' which allow operation to continue in case of main power blackouts. Contactors ensure compliant earth switching.
Certified for TT- and TN-S grids
Can be used in combination with SMA ? Sunny Island 4.4M/6.0H/8.0H.
Requires SMA Home Manager 2.0 (HM-20) - not included.
SI-BBD-4 is used with three Sunny Islands (one per phase) for full 3 phase back-up.
To meet the requirements of BS7671 these have a metal enclosure.
