SIEMENS 3RA2220-4DB27-0BB4 – Load feeder | JUAL SIEMENS 3RA2220-4DB27-0BB4 – Load feeder fuseless, Reversing duty 400 V AC, Size S0 18…25 A 24 V DC screw terminal for installation on standard mounting rail with standard mounting rail adapter (also fulfills type of coordination 1) Type of coordination 2, Iq = 150 kA 1 NO+1 NC (contactor)