ITEM UNIT SPECIFICATION REMARKS MODEL CS638 CAPACITY VA/ W 600/ 300 MAXIMUM AC INPUT VOLTAGE V 160 - 250 MAX.LOAD & CHARGER CURRENT A 1.6 FREQUENCY Hz 50 ± 3 PROTECTION A 3 FUSE DC IN INTERNAL BATTERY 1x12V, 7AH SEALED LEAD ACID BATTERY PROTECTION A 40 FUSE INV OUT WAVE FORM SYNTHESIZED SINEWAVE PWM VOLTAGE V 220 ± 5% FREQUENCY Hz 50 ± 1% EFFICIENCY % > 80 CHG TYPE CONSTANT VOLTAGE VOLTAGE V 13, 6 CURRENT A 1.5 MAXIMUM TRANSFER TIME ms d 4 BACKUP TIME min 10 NOMINAL LOAD INDICATOR LED AND BUZZER OPERATING TEMPERATURE ° C 0 - 40 DIMENSION mm 340 x 86 x 158 D x W x H WEIGHT Kg 7