Home > Electrical & Electronics > Electrical Control System > NI SCXI-1326 High-Voltage Terminal Block

NI SCXI-1326 High-Voltage Terminal Block

NI SCXI-1326 High-Voltage Terminal Block thumbnail-1
NI SCXI-1326 High-Voltage Terminal Block thumbnail-2
NI SCXI-1326 High-Voltage Terminal Block thumbnail-3
NI SCXI-1326 High-Voltage Terminal Block thumbnail-4
NI SCXI-1326 High-Voltage Terminal Block photo-1
NI SCXI-1326 High-Voltage Terminal Block photo-2
NI SCXI-1326 High-Voltage Terminal Block photo-3
NI SCXI-1326 High-Voltage Terminal Block photo-4
Negotiable MOQ: 1 Piece (Price negotiable depending on order volume and customization)
Key Specifications
Get Latest Price
Material:
Other, Global universal model
Condition:
Other, Global universal model
Task:
Other, Global universal model
Contact Supplier Request Quote Chat Now
Guizhou Yuanmiao Automation Equipment Co., Ltd.
Verified Business License
Payment & Shipping
Payment Methods:
Port of Shipment:
China
Delivery Detail:
Delivery time depends on order quantity.

Related Products

  • Product Details

  • Company Profile
  • Contact Us
Material Other, Global universal model
Condition Other, Global universal model
Task Other, Global universal model
Mathematical Model Other, Global universal model
Signal Other, Global universal model
Customized Non-Customized
Structure Other, Global universal model
Operating temperature 0°C to 50°C
Storage temperature -20°C to 70°C
Relative humidity 5% to 90%
NI SCXI-1326I. Functional Features
  • High-Density Terminal Connection
    Equipped with 48 screw terminals, it collaborates with relay modules like SCXI-1161 to enable switching and routing of multi-channel signals, suitable for complex signal switching scenarios.
  • Shielded and Anti-Interference Design
    As a shielded terminal block, it reduces electromagnetic interference (EMI) and radio-frequency interference (RFI) through grounding design and shielding layers, ensuring stable signal transmission.
  • High-Voltage Compatibility
    Supports high-voltage signal processing. Combined with relay modules, it enables switching control of high-voltage circuits, meeting the signal conditioning requirements of high-voltage equipment in industrial environments.
  • Flexible Channel Configuration
    The terminal layout supports parallel connection of multiple channels, corresponding to internal contacts of relay modules to achieve flexible signal routing and switching.
II. Technical Specifications
  • Electrical Isolation
    Common-mode isolation between channels and to ground is 250V rms, ensuring signal safety and anti-interference capability in high-voltage environments.
  • Current Load Capacity
    Maximum load current per channel is 2A, adapting to current requirements of various industrial sensors and actuators.
  • Wiring Specifications
    Supports cable access of 26-16AWG, compatible with common industrial cable specifications for convenient on-site wiring.
  • Operating Environment

    • Operating temperature: 0°C to 50°C

    • Storage temperature: -20°C to 70°C

    • Relative humidity: 5% to 90% (non-condensing), adapting to temperature and humidity changes in industrial fields.

SCXI-1326 (6)

SCXI-1326 (9)

III. Typical Application Scenarios
  • Industrial Automation Signal Switching
    Used in production lines for switching and acquisition of multi-channel sensor signals (e.g., temperature, pressure) or control of on/off states of multi-channel actuators (e.g., solenoid valves, contactors) to achieve efficient control of automated processes.
  • Power System Testing and Monitoring
    In substation or power equipment testing, collaborates with relay modules to monitor and control the switching status of high-voltage circuits, ensuring safe operation of the power system.
  • Laboratory Multi-Channel Signal Routing
    Used in scientific research testing to build multi-channel signal switching platforms, facilitating quick access and switching of different testing equipment or sensors to improve experimental efficiency.
  • Process Control and Data Acquisition
    In chemical, petroleum, and other industries, collaborates with data acquisition modules to condition and acquire multi-channel process signals (e.g., flow, liquid level), providing accurate data support for system control.
IV. Working Principle
  1. Signal Routing and Relay Collaboration Mechanism

  • Hardware Connection with Relay Modules
    The 48 screw terminals of SCXI-1326 correspond to the 16 relay contacts of relay modules like SCXI-1161, achieving signal channel switching through the open/close state of relays. For example:

    • When the relay coil is powered, the contact closes, and the terminals of SCXI-1326 connect to the target circuit (e.g., sensor or acquisition module).

    • When the relay is powered off, the contact opens, cutting off the signal path to achieve safe isolation.

  • Signal Flow
    External signals (e.g., sensor outputs) are connected to SCXI-1326 via screw terminals, switched by relay contacts, and transmitted to subsequent data acquisition modules (e.g., SCXI-1125) or execution devices, forming a complete chain of "signal input-switching-processing".

  • Electrical Isolation and Anti-Interference Design

    • Isolation Mechanism
      Achieves 250V rms electrical isolation between channels and to ground through transformer isolation or optocoupler isolation, preventing common-mode voltage interference (e.g., ground loop noise) from affecting signal quality and avoiding system damage in high-voltage environments.

    • Shielding and Grounding
      The shielding layer of the terminal block can be connected to the chassis ground to form a Faraday cage effect, suppressing external electromagnetic interference; the cable shielding layer is grounded via grounding terminals to further reduce noise coupling.

  • Isothermal Structure and Accuracy Assurance
    Adopts the isothermal copper plane design consistent with the SCXI series, integrating all terminals on the same heat-conducting plane to reduce temperature gradients between terminals, avoid signal drift caused by temperature differences (e.g., cold junction temperature fluctuations in thermocouple measurements), and ensure high-precision measurement.
  • Open Circuit Detection and Fault Diagnosis
    Each channel is equipped with a pull-up resistor (e.g., CH+ to +5V) and a bias resistor (CH- to ground). When external cables or sensors are open-circuited, the differential input signal exceeds the normal range, and the SCXI module can detect this anomaly through software to achieve fault early warning and ensure system reliability.
  • Collaborative Workflow with SCXI System

    • Hardware Connection
      SCXI-1326 connects to the chassis via the SCXI bus to obtain power and transmit control signals (e.g., relay drive commands).

    • Signal Processing
      The relay module controls the contact state according to instructions from the host computer (e.g., LabVIEW), and SCXI-1326 completes signal routing; the signal is conditioned, transmitted to the acquisition module, and converted to digital quantity via ADC.

    • Software Integration
      Utilizes NI drivers and software tools to configure relay logic, read signal status, and integrate algorithms such as cold junction compensation (if temperature measurement is involved) to achieve real-time data processing and display.

    SCXI-1326 (8)

    SCXI-1326 (5)

    V. Core Technology Comparison (with SCXI-1324/1325)
    Module Model SCXI-1324 SCXI-1325 SCXI-1326
    Core Function High-voltage switching signal conditioning Analog signal connection and isolation Multi-channel signal routing and switching
    Number of Terminals 48 (connecting 16 relays) 26 (connecting 6 output channels) 48 (connecting 16 relays)
    Typical Matching Modules SCXI-1160 (relay) SCXI-1124 (analog output) SCXI-1161 (relay)
    Application Scenarios High-voltage equipment control Analog output control Multi-channel signal switching and testing

    Product Tags: SCXI-1326 , SCXI-1304 , SCXI-1104C

    Send Inquiry to This Supplier

    * Message
    0/5000

    Want the best price? Post an RFQ now!
    Guizhou Yuanmiao Automation Equipment Co., Ltd.
    Verified Business License
    Business Type
    Trading Company
    Year Established
    2014
    Factory Size
    1,000-3,000 square meters
    Product Certifications
    SA8000
    Contact Supplier Request Quote Chat Now

    You May Also Like

    Product Categories

    Recommended Categories

    Explore top categories and find suppliers for your specific needs
    Telecommunication & Broadcasting Telecommunication & Broadcasting
    Optical Fiber, Cable & Wire Optical Fiber, Cable & Wire
    Power Transmission & Transformer Power Transmission & Transformer
    Power Supply & Distribution Power Supply & Distribution
    Sensor Sensor
    Passive Components Passive Components
    Battery, Storage Battery & Charger Battery, Storage Battery & Charger
    Switch Switch
    Connector & Terminals Connector & Terminals
    Electric Motor Electric Motor
    Integrated Circuit Integrated Circuit
    Antenna Antenna
    GPS GPS
    Socket & Outlet Socket & Outlet
    Breaker & Protector Breaker & Protector
    Inverter Inverter
    Circuit Board Circuit Board
    Electronic Tube & Transistor Electronic Tube & Transistor
    Cable Parts Cable Parts
    Relay & Contactor Relay & Contactor
    Smart Card & Card Reader Smart Card & Card Reader
    Remote Control Remote Control
    Other Electronics Other Electronics
    Variable-Frequency Drive Variable-Frequency Drive
    Electronics Stocks Electronics Stocks
    Transmitter Transmitter
    Semiconductor Semiconductor
    Rectifier Rectifier
    Oscillator Oscillator
    Heating, Refrigeration & Temperature Control Heating, Refrigeration & Temperature Control
    Insulation Insulation
    Electric Contact & Materials Electric Contact & Materials
    Semiconductor Silicon Semiconductor Silicon
    Specialized Electrical Equipment Specialized Electrical Equipment
    Encoder Encoder
    Plug Plug
    Speaker,Trumpet & Buzzer Speaker,Trumpet & Buzzer
    LED Video Processor LED Video Processor