2
Protection
function
保护功能
Protection state
保护状态特征
Support for auto-recovery
恢复特性
Overtemperature
protection
过温保护
The power module does not
supply power, and the power
module status LED is steady red.
无输出，指示灯红灯常亮
Power supply restores after the
temperature decreases to an acceptable
range.
故障排除后可自恢复，指示灯绿灯常亮
Input undervoltage
protection
输入欠压保护
The power module does not
supply power, and the power
module status LED is flashing red.
无输出，指示灯红灯闪烁
Power supply restores after the input
voltage increases to an acceptable
range.
故障排除后可自恢复，指示灯绿灯常亮
Item
项目
Specifications
规格
PSR450-12A/PSR450-12A1
PSR450-12AHD
AC input
交流输入
Rated input voltage
额定输入电压范围
100 to 240 VAC @ 50 or 60
Hz
100 to 240 VAC @ 50 or 60
Hz
Rated input current
额定输入电流
6 A
6 A
Max. input voltage
最大输入电压范围
90 to 290 VAC @ 47 to 63 Hz
90 to 290 VAC @ 47 to 63
Hz
Max. input current
最大输入电流
7 A
7 A
High-voltage
DC input
高压直流输入
Rated input voltage
额定输入电压范围
240 VDC
240 to 380 VDC
Rated input current
额定输入电流
3 A
3 A
Max. input voltage
最大输入电压范围
180 to 320 VDC
180 to 400 VDC
Max. input current
最大输入电流
3.5 A
3.5 A
Output voltage
输出电压
12 V/3.3 V
12 V/3.3 V
Output current
输出电流
37.5 A (12 V)/2 A (3.3 V)
37.5 A (12 V)/2 A (3.3 V)
Max. output power
最大输出功率
450 W
450 W
Dimensions (H × W × D)
外形尺寸（高
×
宽
×
深）
40.2 × 50.5 × 221 mm (1.58 ×
1.99 × 8.70 in)
40.2 × 50.5 × 221 mm (1.58
× 1.99 × 8.70 in)
Operating temperature
工作环境温度
–10°C to +55°C (14°F to
131°F)
–10°C to +55°C (14°F to
131°F)
Relative humidity
相对湿度
5% to 95%
5% to 95%
