SYS POWER SUPPLY UM E
Reliable protection can be obtained by grounding the safety extra low voltage after PE on
the secondary side at a defined position. Ideally, the secondary grounding is established
directly on the output terminal of the power supply unit as shown in Figure 2-5. If, in this
way, the first ground fault is generated intentionally and at a defined position, every other
unintentional ground fault will cause an output voltage short circuit in the critical area
between the fuse and the load. This will cause the fuse to blow and the faulty area of the
electrical system to shut down. In this way persons and machines are being protected.
Si
Ground fault
Critical area
230 V
AC
STOP!
M
5598D409
Figure 2-5
With secondary grounding
2-8
PHOENIX CONTACT
5598_en_03
相关PDF资料
2938853 DIN RAIL POWER SUPPLY 24VDC 5A
2938866 POWER SUPPLY 10A 24VDC
2938879 POWER SUPPLY 40A 100-240AC 24DC
2938976 POWER SUPPLY 20A 100-240AC 48DC
299D225X0025AB1 CAP TANT 2.2UF 25V 20% RADIAL
2AC109 SWITCH DOOR ROD SPDT 15A SCREW
2AC110 SWITCH DOOR ROD SPDT 15A QC
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相关代理商/技术参数
2938853 功能描述:DIN导轨式电源 QUINT 24VOLT 5AMP RoHS:否 制造商:Mean Well 产品:Linear Supplies 商用/医用:Commercial 输出功率额定值:960 W 输入电压:180 VAC to 264 VAC, 254 VDC to 370 VDC 输出端数量:1 输出电压(通道 1):48 V 输出电流(通道 1): 输出电压(通道 2): 输出电流(通道 2): 输出电压(通道 3): 输出电流(通道 3): 尺寸:150 mm L x 110 mm W
2938860-2 制造商: 功能描述: 制造商:undefined 功能描述:
2938866 功能描述:DIN导轨式电源 QUINT100-240AC/24DC 24VDC 10A RoHS:否 制造商:Mean Well 产品:Linear Supplies 商用/医用:Commercial 输出功率额定值:960 W 输入电压:180 VAC to 264 VAC, 254 VDC to 370 VDC 输出端数量:1 输出电压(通道 1):48 V 输出电流(通道 1): 输出电压(通道 2): 输出电流(通道 2): 输出电压(通道 3): 输出电流(通道 3): 尺寸:150 mm L x 110 mm W
2938879 功能描述:DIN导轨式电源 QUINT 24VOLT 40AMP RoHS:否 制造商:Mean Well 产品:Linear Supplies 商用/医用:Commercial 输出功率额定值:960 W 输入电压:180 VAC to 264 VAC, 254 VDC to 370 VDC 输出端数量:1 输出电压(通道 1):48 V 输出电流(通道 1): 输出电压(通道 2): 输出电流(通道 2): 输出电压(通道 3): 输出电流(通道 3): 尺寸:150 mm L x 110 mm W
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