NI SCXI-1326

Description

Product Overview

The NI SCXI-1326 is a high-voltage terminal block from National Instruments (NI), designed for robust signal conditioning in industrial and laboratory environments. As part of the SCXI (Signal Conditioning eXtensions for Industry) series, this terminal block serves as a critical interface for connecting high-voltage signals to SCXI modules, enabling safe and reliable data acquisition. The SCXI-1326 features 48 screw terminals organized into 8 independent groups, each with 6 terminals (1 VCC, 1 GND, and 4 channels), allowing flexible wiring for multi-channel applications. Its shielded design minimizes electromagnetic interference (EMI), while its high-voltage tolerance (up to 300 V) makes it suitable for applications requiring robust electrical isolation. The terminal block mounts directly to front panels of SCXI modules like the SCXI-1162 HV and SCXI-1163, streamlining integration into complex measurement systems.

Technical Specifications

NI SCXI-1326

Main Features and Advantages

High-Voltage Capability: The NI SCXI-1326 safely handles up to 300 V, making it ideal for applications involving high-voltage sensors, industrial machinery, or power distribution systems. Its CAT II rating ensures compliance with electrical safety standards.
Modular Terminal Design: With 8 independent groups, the terminal block supports simultaneous connection of multiple signals while maintaining electrical isolation between groups. This modularity simplifies wiring for complex setups, such as multi-channel temperature monitoring or high-voltage digital I/O.
EMI/RFI Shielding: The shielded construction reduces noise interference, ensuring accurate signal transmission in noisy environments. This is crucial for maintaining data integrity in industrial settings with heavy machinery or electromagnetic fields.
Easy Integration with SCXI Modules: The terminal block mounts directly to SCXI-1162 series modules, eliminating the need for additional adapters or complex cabling. This seamless integration streamlines system setup and reduces installation time.
Rugged Industrial Construction: Built to withstand harsh conditions, the SCXI-1326 features durable screw terminals and a robust casing, making it suitable for both laboratory use and permanent industrial installations.

Application Field

The NI SCXI-1326 is widely used in industrial automation for high-voltage monitoring and control. In power plants, it connects voltage sensors or circuit breakers to SCXI modules for real-time power quality analysis. In manufacturing, the terminal block supports safety-critical applications, such as monitoring high-voltage switches in robotic assembly lines or testing industrial motors.

For research and development, the SCXI-1326 enables high-voltage signal conditioning in materials science experiments, such as measuring dielectric properties or conducting high-voltage stress tests. It is also utilized in automotive testing for connecting battery management systems or high-voltage circuitry to DAQ systems. Additionally, the terminal block supports academic labs teaching electrical engineering, where it facilitates hands-on experiments with high-voltage signals while ensuring student safety.

NI SCXI-1326

Related Products

SCXI-1162 HV: A high-voltage analog input module compatible with the SCXI-1326, offering 8 channels of isolated analog input for high-voltage signals.
SCXI-1000: A modular chassis that houses SCXI modules and the SCXI-1326, providing power and mechanical support for complete signal conditioning systems.
SCXI-1349: A cable adapter that connects E-Series DAQ devices to SCXI systems, complementing the SCXI-1326 in end-to-end measurement setups.
SHC68-68-EP: Shielded cables that interface with the SCXI-1326 and DAQ devices, ensuring low-noise signal transmission over short or medium distances.
SCXI-1324: A general-purpose terminal block for lower-voltage applications, serving as a complement to the high-voltage SCXI-1326 in mixed-signal systems.

Installation and Maintenance

Pre-installation preparation: Before mounting the NI SCXI-1326, ensure the compatible SCXI module (e.g., SCXI-1162 HV) is properly installed in a SCXI chassis. Use insulated tools to connect high-voltage wires to the terminal block, following the wiring diagram in the user manual to avoid short circuits. Verify that the system ground is properly connected to minimize noise and ensure safety. Route high-voltage cables separately from low-voltage signals to prevent interference.
Maintenance recommendations: Regularly inspect the SCXI-1326 for loose terminals or signs of arcing, especially in high-voltage applications. Tighten screws as needed to maintain secure connections. Clean the terminal block with a dry, non-conductive cloth to remove dust or debris that could cause insulation failure. If operating in humid environments, check for condensation and ensure proper ventilation. Refer to NI’s documentation for troubleshooting steps or contact technical support for assistance with high-voltage system issues.

Product Guarantee

The NI SCXI-1326 is backed by NI’s 3-year warranty, covering manufacturing defects and ensuring reliable operation in high-voltage applications. NI provides comprehensive technical support through online resources, including installation guides, safety specifications, and community forums, to assist with integration and troubleshooting. Users can access free software updates for NI-DAQmx and related tools, ensuring compatibility with evolving measurement systems. This guarantee underscores NI’s commitment to delivering safe, industry-standard solutions for high-voltage signal conditioning, making the SCXI-1326 a trusted component for both temporary research setups and permanent industrial installations.