Siemens 5SU1656-7KK20 RCBO type A, 1P+N, 20A, 300mA. RCBO, 6 kA, 1P+N, type A, 300 mA, C-Char, In: 20 A, Un AC: 230 V. It belongs to RCBOs. Recorded manufacturer technical characteristics include Poles: 1P+N; RCD type: A; Trip curve: C; Rated current: 20 A; Voltage rating: AC 230 V; Residual current: 300 mA; Breaking capacity: 6 kA.