S/DFY power box S/DFY type power box is DDZ-S/IIIA voltage stabilizing power supply device for centralized power supply in a series of instruments. In order to ensure the reliable operation of the system, the power box has overvoltage and undervoltage protection functions. When overvoltage, undervoltage, overcurrent, or short circuit occurs, it can immediately send a contact signal to cut off the output of the power supply and switch to the backup power supply, forming an uninterrupted power supply system. To ensure the normal operation of the instrument system, multiple power sources can be connected in parallel, greatly improving the reliability of the power supply system.

Model specifications and main technical indicators

model	S/DFY-1110	S/DFY-1111	S/DFY-1112
parameter
project
DC output voltage V	24±0.5	24±0.5	24±0.5
DC output current A	1	5	10
AC output voltage V	24±1	24±1	24±1
AC output current A	0.25	1	2
Current limiting protection current A	1.3～1.4	6~7	11~12
Under voltage protection range V	22±0.8	22±0.8	22±0.8
Overvoltage protection range V	28±1	28±1	28±1
Ripple voltage mV	≤5	≤5	≤10
Power consumption W	40	200	380
Weight Kg	3.5	8	11
Dimensions: (Width x Height x Depth) mm	44×175×360	88×175×360	88×175×360

Power supply voltage: 220VADC ± 10% 50Kz
Power supply voltage: variation impact: ≤ 1%
Load variation impact: ≤ 2%
Environmental temperature: 0-50 ℃
Relative humidity: ≤ 85%
Current: Voltage digital display
Installation method: rack mounted
Installation hole spacing: 165 ± 0.25mm screw M5 × 2