NI SCXI-1326 High-Voltage Screw Terminal Block

The NI SCXI-1326 is a shielded high-voltage screw terminal block built for digital input and output modules of the SCXI measurement platform. It is compatible with SCXI-1162, SCXI-1162HV, SCXI-1163 and SCXI-1163R, offering 48 screw terminals grouped into eight banks for high-voltage discrete signal wiring.

This legacy terminal accessory supports up to 300 V CAT II working voltage and provides isolation between banks and chassis ground. It is commonly stocked as spare parts for industrial relay control cabinets, automated test benches and maintenance renovation of discontinued NI SCXI systems.

Main Specifications

• Brand: NI (National Instruments); Model: SCXI-1326; Type: High-Voltage Screw Terminal Block
• Matching Modules: SCXI-1162, SCXI-1162HV, SCXI-1163, SCXI-1163R digital I/O modules
• Terminal Layout: 48 screw terminals divided into 8 independent banks
• Voltage Rating: Max 300 V, CAT II rated, bank-to-bank and bank-to-ground isolation
• Wire Gauge: Accepts 26–14 AWG field wiring for discrete control signals
• Operating Environment: 0℃ ~ +50℃, 5%‑95% RH non‑condensing
• Certifications: CE, conform to measurement safety and industrial EMC standards

Core Functions

• Provide secure field wiring connection for high-voltage digital input and relay output modules.
• Bank isolation design reduces cross-channel interference and improves circuit safety.
• Shielded housing suppresses electromagnetic noise generated by relays and contactors.
• Screw terminal structure supports repeated wiring, troubleshooting and on-site maintenance.
• Front panel mounting allows convenient wiring without disassembling the SCXI chassis.
• Standard mechanical interface enables fast assembly and replacement in compatible SCXI chassis.

Application Scenarios

• Industrial automation relay control and discrete signal monitoring cabinets.
• Aerospace and automotive end-of-line test benches with high-voltage digital switching.
• Retrofit and spare replacement of legacy NI SCXI distributed measurement and control platforms.
• Power equipment, water treatment and chemical plant on-site signal acquisition systems.
• Spare inventory for test system integrators, automation maintenance contractors.

• Global aftermarket spare supply for teams maintaining discontinued NI DAQ hardware.