NI SCXI-1325 Screw Terminal Block

The NI SCXI-1325 is a high-voltage screw terminal block that provides secure field wiring integration for SCXI analog output modules. This 26-terminal interface block connects directly to the SCXI-1124 module, delivering two dedicated chassis ground terminals and 24 signal terminals across six output channels. Built with isothermal construction and shielded enclosure design, the terminal block ensures signal integrity and reliable connections in measurement and control systems.

– Technical Specifications

• Terminal Configuration: 26 total screw terminals (2 chassis ground + 24 signal)
• Voltage Isolation: 250 Vrms channel to ground and channel to channel
• DC Rejection: ±50 VDC at 1 MΩ common mode
• Corner Frequency: 0.16 Hz, 1-pole RC at 1 MΩ common mode
• Wire Gauge Support: 26–14 AWG
• Voltage Rating: 250 V, CAT II
• Operating Temperature: 0 to 50 °C
• Storage Temperature: –20 to 70 °C
• Relative Humidity: 5% to 90% non-condensing
• Torque Specification: 5–7 in.-lb

– Key Features

• Isothermal construction for high measurement accuracy
• Shielded enclosure protects against electromagnetic interference
• Direct connectivity to SCXI-1124 via mating connectors
• Accommodates signal wires insulated to 300 V, 60 °C rating
• IEC 61010-1, UL 3111-1, and CAN/CSA C22.2 No. 1010.1 compliant

– Typical Applications

The SCXI-1325 serves industrial measurement, data acquisition, and process control environments requiring high-voltage signal routing with guaranteed isolation and noise rejection. Field installations with transducer arrays benefit from the accessible screw terminal design and multi-channel architecture.

– Compatibility & Integration

Designed exclusively for SCXI-1124 analog output modules within SCXI chassis systems. Mounts directly to module front connectors. High-impedance ground sources (≤1 mA) may connect to chassis ground terminals; safety earth ground connection required independently when voltages ≥30 Vrms, 42.4 Vpeak, or 60 VDC are present.