Product Description:
The Siemens 505 Series Input/Output Modules may contain 8-,16-, or 32- output points. These modules are particularly valuable for applications where a "no leakage" output is mandatory in the off-state condition, load currents must be isolated, and when a mixture of voltages must be connected to the same module. The 16- and 32- point relay modules are equipped with four isolated commons, and can switch either AC or DC power at each common. The 8-point module is equipped with eight isolated commons, and can switch either AC or DC power at each point. These modules are less susceptible than other DC-type modules to inductive load transients when the outputs are turned on or off.
The Siemens 505 Discrete Input and Discrete Output Modules contain 8-,16-,or 32- input or output circuits and can accept AC or DC voltage, depending on the model. Both input and output circuits are grouped into four commons for each model. The discrete input modules are particularly valuable in areas where applications such as limit switches or pushbuttons are needed. The discrete AC output modules are equipped with heavy-duty triacs, without zero cross circuits, to give a faster turn-on response.
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