NI SCXI-1160 16-Channel General-Purpose Relay Module

The NI SCXI-1160 is a 16-channel general-purpose relay module for high-density signal switching and routing within National Instruments SCXI chassis systems. It employs 16 independent electromechanical latching SPDT (Form C) relays, each with normally closed, normally open, and common contacts. The module delivers 2 A switching capacity at 250 VRMS or 30 VDC, with a maximum switching power of 60 W and operating time of approximately 10 ms. Initial contact resistance measures below 75 mΩ with thermal EMF of approximately 3 µV, ensuring minimal signal degradation in precision measurement applications. Maximum switching rate reaches 50 operations per second, supporting both DC and AC signal management with arc suppression for inductive loads.

– Technical Specifications

• Relay Configuration: 16 independent SPDT (Form C) electromechanical latching relays
• Switching Capacity: 2 A at 250 VRMS; 2 A at 30 VDC
• Maximum Switching Power: 60 W
• Maximum Carry Current: 2 A
• Maximum Switching Rate: 50 operations per second
• Relay Operating Time: Approximately 10 ms
• Contact Resistance (Initial, Typical): < 75 mΩ
• Thermal EMF: Approximately 3 µV
• Contact-to-Coil Isolation: 250 VRMS
• Bandwidth: 1 MHz
• Voltage Category: CAT II
• Certifications: UL, CE, CAN/CSA, IEC, C-Tick, FCC Part 15

– Key Features

• Arc suppression support for inductive loads
• Extremely low on-resistance and thermal offset
• Serial communication over SCXIbus
• Front 48-pin DIN C connector; rear 50-pin ribbon header
• Configurable jumpers for communication (W1, W5) and controller type identification (W2, W3, W4)

– Compatibility & Integration

Works with NI MIO-16 boards, Lab-series DAQ boards, DIO-series modules, NI 4021 switch controller, NI 4070/4060 DMMs, USB switch controllers, and PXI switch controllers. Software support includes NI-SWITCH driver, LabVIEW, LabWindows/CVI, and traditional NI-DAQ.