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National Instruments NI-9485 Solid-state relay output module
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National Instruments · CompactDAQ / CompactRIO

NI-9485

The NI-9485 is an eight-channel C Series solid-state relay output module for switching external loads. It provides channel-to-channel isolation and supports switching up to 60 VDC or 30 Vrms.

ManufacturerNational Instruments
ModelNI-9485
Part Number779600-02
Product TypeSolid-state relay output module
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30-Day Warrantystandard coverage
30-Day Returnspolicy applies
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Outputs8 solid-state relay channels
Switching voltage60 VDC / 30 Vrms maximum
Switching current750 mA per channel with all channels; 1.2 A per channel with up to four channels
Field connection16-position screw-terminal connector
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Overview

Product overview

Key product information and technical features.

The NI-9485 adds isolated relay switching to CompactDAQ and CompactRIO systems. Its individual SSR outputs can switch externally powered industrial loads rather than supplying load power directly.

Channel-to-channel isolation permits separate external supplies for mechanisms with different switching requirements, provided each circuit remains within the module ratings.

  • Independent solid-state relay outputs with channel-to-channel isolation.
  • Supports AC and DC load switching within the specified voltage and current limits.
  • LabVIEW and NI-DAQmx relay control uses Boolean output commands to open or close channels.
Verified specifications

Technical data

Verified product specifications.

Output channels8 channels
Relay technologySolid-state relay (SSR)
Maximum DC switching voltage60 VDC
Maximum AC switching voltage30 Vrms
Maximum switching current per channel, all channels0.75 A
Maximum switching current per channel, up to four channels1.2 A
Switching rate at 90% duty cycle1 operation/s
Conformal coating for part number 779600-02Conformal coated
Condition & included items

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Compatibility

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National Instruments

Manufacturer

CompactDAQ / CompactRIO

Host platforms for C Series I/O

NI-9485

Relay output module

Compatibility

Designed for NI CompactDAQ and CompactRIO chassis; verify the specific chassis and programming configuration before integration.

Check chassis and software support for the intended system. Observe current limits for the number of channels in use.
Manuals & software

Technical resources

Manuals, software and technical resources for this model.

NI-9485 Official Product PageProduct Page · ni.com
Open →
NI 9485 DatasheetDatasheet · download.ni.com
Open →
NI 9485 Getting Started GuideGetting Started Guide · docs-be.ni.com
Open →
Program C Series Relay Output Module with DAQmxTechnical resource
Open →
Controlling a Solenoid with the NI 9485 or NI-9482Technical resource
Open →
Shipping, warranty & returns

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Warranty
30-Day Warranty. Standard coverage applies.
Returns
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FAQ

Product-specific questions

Product-specific answers based on available technical information.

Does the NI-9485 supply power to the load?

No. The relay switches an externally powered circuit; connect the load and its external supply according to NI's wiring guidance.

How is the NI-9485 controlled with NI-DAQmx?

Configure a digital output task. A True command closes the selected relay, while False opens it.

Is part number 779600-02 conformal coated?

Yes. NI identifies 779600-02 as the conformal-coated NI-9485 variant. Confirm the physical module's part number when selecting a variant.

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