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National Instruments 779600-01 C-Series Relay Output Module 

The part number 779600-01 from National Instruments is the identifying part number for the NI-9485 C-Series Relay Output Module. This module is designed for CompactRIO, and CompactDAQ modules and features 8 solid state relay channels which makes this module great for applications that require low-power switching. 

The relays can switch voltages of up to 60 Volts DC or 30 Volts RMS allowing this module to provide high voltage switching capability as well. Each channel can handle a current draw of a maximum of 0.75 Amperes when each channel is used individually or allow a current draw of 1.2 Amperes when 4 channels are being used simultaneously. This module has a quick switching time with a maximum switching time of 0.5 milliseconds for relay opening and 0.9 milliseconds for relay closing. 

To allow weak electrical signals, the 779600-01 has an input impedance of 200 mΩ maximum which also helps in minimizing heat and power losses. During the off state, the module has a current leakage of 30 μA. It should also be operated in an environment with an ambient temperature between -40 degrees Celsius to 70 degrees Celsius and can be stored in a room with a temperature between -40 degrees Celsius to 85 degrees Celsius. During operation, the module can withstand humidity levels between 10% to 90% and should always be stored in an environment with humidity between 5% to 95% non-condensing. In addition, it features an IP 40 protection rating protecting it from scratches but not from moisture or liquid. The module has a pollution degree level 2 rating and should always be mounted at a maximum height of 5000 meters.

Part 779600-01 has channel-to-channel isolation with a rating of 60 VDC and can withstand 1000 VRMS per the 5-second dielectric withstand test. It also has channel-to-ground isolation with a continuous rating of 250 VRMS and can withstand a maximum of 2300 VRMS. This module can fit in standard CompactRIO and CompactDAQ chassis slots and features screw terminals that support 30 AWG to 14 AWG wires. This module is also light weight weighing approximately 145 grams.