The SS series are lightweight, high efficiency static inverters. This model utilizes the latest state of the art, solid state circuitry to invert a 28 Vdc input to either a 115 Vac, 60 Hz or 230 Vac, 50 Hz sine wave output. Design features include a crystal-controlled oscillator for output frequency stability and a pulse-width-modulated square to sinewave power conversion scheme for efficient & reliable operation. Model Specifications: MODEL INPUT OUTPUT DIMENSIONS WT. Curr (ADC) Volts (Vrms) 5% Curr (A rms) Freq HZ Power VA H IN (mm) LL IN (mm) LM IN (mm) L IN (mm) T IN (mm) MH IN (mm) LB (KG) 5% SS50 20.7 115 4.3 60 500 3.38 (85.5) 9.50 (241.3) 8.75 (222.25) 8.09 (205.49) .06 (1.52) .20 (5.08) 4.3 (1.95) SS100 SS101 41.5 115 8.6 60 1000 3.40 (86.36) 12.0 (304.8) 11.25 (285.75) 10.60 (269.24) .08 (2.03) .28 (7.11) 7.4 (3.36) SS120 SSA120 50.0 115 10.3 60 1200 3.40 (86.36) 12.0 (304.8) 11.25 (285.75) 10.60 (269.24) .08 (2.03) .28 (7.11) 7.7 (3.50) SB100 41.5 230 4.3 50 1000 3.40 (86.36) 12.0 (304.8) 11.25 (285.75) 10.60 (269.24) .08 (2.03) .28 (7.11) 7.4 (3.36) SB101 41.5 230 4.3 50 1000 3.40 (86.36) 12.0 (304.8) 11.25 (285.75) 10.60 (269.24) .08 (2.03) .28 (7.11) 7.4 (3.36) SB120 50.0 230 5.2 50 1200 3.40 (86.36) 12.0 (304.8) 11.25 (285.75) 10.60 (269.24) .08 (2.03) .28 (7.11) 7.7 (3.50)