Guizhou Yuanmiao Automation Equipment Co., Ltd.: 1Yr

Anshun, Guizhou, China; Main products: ABB Triconex Foxboro LAM, Bentley Motorola Schneider, Kollmorgen HIMA ALSTOM, Reliance GE HONEYWELL NI、ICS

Home
Product Categories

ABB

Bently Nevada

TRICONEX

GE

ICS Triplex

HIMA

MOTOROLA

WOODWARD

HONEYWELL

Foxboro

Schneider Modicon

YOKOGAWA

EPRO

MOOG

Westinghouse

Reliance

Emerson

B&R

ALSTOM

LAM

KONGSBERG

FANUC

National Instruments

Kollmorgen

Other Brands
Company Profile

Company Introduction

Photo Gallery
Blog
Quality Control
Contact Us

Home > Products > National Instruments > NI SCXI-1326 High-Voltage Terminal Block

NI SCXI-1326 High-Voltage Terminal Block

FOB Price

Negotiable / Piece

1 Piece(Min.Order)

Supply Ability 0 Piece / Pieces per Month
Payment TermsT/T PayPal Western Union

Request Sample Customized Request Request Free Catalogs

Contact Now

Get lowest price

Product Details

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%

Product Description

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.

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

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.

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

Company Profile

Guizhou Yuanmiao Automation Equipment Co., Ltd.

Main products: Covering globally renowned brands: Bently Nevada, Triconex, Woodward, Foxboro, Westinghouse, Reliance, Schneider Modicon, ABB, AB (Allen-Bradley), Motorola, GE Fanuc, Yaskawa, Bosch Rexroth Rexroth, ACSO, YOKOGAWA, Rexroth, NI, ICS Triplex, Kollmorgen, Mitsubishi, MOOG, Emerson, B&R B&r, SST, ALSTOM, KUKA EPRO, LAM HIMA dark Horse, HONEYWELL, prosoft, AMAT, SIEMENS, etc. The product categories include: DCS system accessories, robot system spare parts, large servo system spare parts, etc., which are widely used in power, chemical, metallurgy, intelligent manufacturing and other fields.

Contact Us

Guizhou Yuanmiao Automation Equipment Co., Ltd.: Contact nameyezi
Chat Now; AddressXixiu District, Anshun, Guizhou

*Email
Please enter Your valid email address.
*To

yezi
*Message
Your inquiry content must be between 20 to 5000 characters.
Please enter a correct verification code.

Product Categories

ABB	Bently Nevada	TRICONEX	GE
ICS Triplex	HIMA	MOTOROLA	WOODWARD
HONEYWELL	Foxboro	Schneider Modicon	YOKOGAWA
EPRO	MOOG	Westinghouse	Reliance
Emerson	B&R	ALSTOM	LAM
KONGSBERG	FANUC	National Instruments	Kollmorgen
Other Brands

Find Similar Products By Category: Electrical & Electronics > Electrical Control System

Product Tags:

SCXI-1326 | SCXI-1304 | SCXI-1104C

NI SCXI-1326 High-Voltage Terminal Block

You May Like

Product Details

Product Description

Company Profile

Contact Us

Product Categories

New Products

Find Similar Products By Category

Product Tags: