型号：2903-1 SPECIFICATIONS Power requirements: 115 V 60 Hz 4 A max.; 230V 50 Hz, 2 A max. Dimensions: 20.2" wide x 6.4" high x 19.9" deep (51.3 cm x 16.3 cm x 50.5 cm) Weight: 57 lbs. (25 kg) with all modules slots filled Solar Type 2903-1 25 Ω ± 1% Series Resistor WVFM 3A pin injection levels 1-3
