SCXI-1160 | NI 16-Channel SPDT Latching Relay General-Purpose Switch Module
Product Introduction
SCXI-1160（PN:776572-60, Rev:182139D-01）is discontinued NI SCXI platform universal relay switching module, equipped with 16 independent Form-C SPDT bistable latching relays, low contact resistance & ultra-low thermal offset, dedicated for analog signal routing, circuit switching and medium-power load control, compatible with SCXI-1000/SCXI-1001 chassis, matched with NI E/M series DAQ & DIO acquisition boards, only surplus aftermarket spare supply currently.
Description
Part Code Definition
SCXI = NI SCXI modular signal conditioning backplane platform1160 = fixed model code for 16-channel SPDT latching relay switching module
Technical Specifications
Channel：16 fully independent SPDT(Form-C) two-coil latching relay, each channel with COM/NO/NC three terminalsRated Switch Capacity：2A@250VAC RMS, 2A@30VDC per single channelRelay Parameter：Actuation time ≤10ms, thermal offset voltage 3μV, low on-resistance; coil-contact isolation 250VRMS withstandMax Switching Rate：50 switch operations per second full moduleWorking Environment：0℃~+50℃ operation, -40℃~+70℃ storage, RH5%~95% non-condensingDimension：Standard SCXI outline 173×86×203mmPower Consumption：Low static power due to latching design, coil only energized momentarily during state toggle
Interface & Communication Configuration
Front Panel I/O：60pin DIN female connector; matched terminal accessory SCXI-1327 screw terminal block for field wiring access of NO/NC/COM per channelRear Bus：Standard SCXI golden finger backplane plug-in; 5 onboard configuration jumpers for digital bus & controller mode selectionControl Driver：Controlled by NI-SWITCH driver, programming via LabVIEW / LabWindows/CVI; compatible with NI MIO, DIO-24/DIO-32F series DAQ cards
Core Functions
1.16-channel isolated independent relay switching, realize multi-path analog signal multiplex routing to DAQ acquisition channel2.Bistable latching relay keeps switch state without continuous coil power supply, reduce system power consumption and heat generation3.Medium voltage/current load on-off control for small actuator, indicator lamp and auxiliary circuit4.Multi-module cascading in single SCXI chassis to expand hundreds of switching channels for large-scale measurement system5.Isolation between relay coil and signal contact to isolate field surge interference from backend DAQ equipment
Application Scenarios
Automated production line functional test signal multiplexing, laboratory multi-point sensor sequential switching acquisition, industrial small load auxiliary circuit on-off control, legacy SCXI DAQ system spare replacement, automotive component batch screening test
Operation & Maintenance Notes
Cut off chassis power before module hot plug/unplug; add freewheeling diode for inductive load (solenoid, coil) at terminal to avoid contact arc ablation; prohibit simultaneous energization of set/reset two coils of single relay; regularly check terminal screw tightness to prevent poor contact oxidation; avoid overloading rated current of relay contact.
Get a Quote