Product Overview
National Instruments SCXI-1325 Terminal Block - 250Vrms Isolated, 26-Terminal, SCXI-1124 Compatible
Condition
Single unit available. Used condition with light surface wear on the off-white housing - consistent with normal lab service. Label intact showing model SCXI-1325, part no. 185599A-01, rev. X3, serial no. BA4B18; CE and UL marks visible; Made in USA. CAT II 250V MAX markings confirmed on the enclosure panel. Multi-pin connector edge present. Sourced from a government research facility. Terminal block only - no module, chassis, or accessories included.
Carefully packed and shipped same or next business day from our Idaho warehouse. Honest equipment and straightforward service.
Online since 1999. We are here for our customers, with a no-hassle satisfaction guarantee.
Product Overview
National Instruments SCXI-1325 is the direct-mount high-voltage terminal block for the SCXI-1124 analog output module. It provides 26 screw terminals accepting 26-14 AWG field wire and delivers 250 Vrms channel-to-ground and channel-to-channel isolation - the isolation level that makes it the correct choice for high common-mode voltage environments where generic terminal blocks create measurement error or safety exposure. Isothermal construction supports accuracy-critical analog output work. The unit mounts directly to the SCXI-1124 inside an SCXI chassis and complies with IEC 61010-1, UL 3111-1, and CAN/CSA C22.2 No. 1010.1 electrical safety standards.
Key Features
- Isolation: 250 Vrms channel-to-ground and channel-to-channel (CAT II)
- Screw terminals: 26 positions, accepts 26-14 AWG field wire
- Compatible module: SCXI-1124 analog output only - not interchangeable with other SCXI modules
- Compatible chassis: SCXI-2000, SCXI-1000, SCXI-1000DC, SCXI-1001
- DC rejection: ±50 VDC at 1 MΩ common mode
- RC corner frequency: 0.16 Hz at 1 MΩ common mode
- Operating temperature: 0 to 50 °C; storage -20 to 70 °C
- Humidity: 5% to 90% non-condensing
- Safety compliance: IEC 61010-1, UL 3111-1, CAN/CSA C22.2 No. 1010.1
- Direct-mount design - mounts to SCXI-1124 without a cable; contrast with TBX-1325 DIN-rail variant which requires SH48-48-A cable
- Serial no. BA4B18, rev. X3, Made in USA - confirmed on label
Applications
- Connecting transducers and field-wiring to an SCXI-1124 analog output module in an industrial control bench - stripping wire to 7mm, inserting into screw terminals, and torquing to 5-7 in.-lb. before commissioning a process control loop
- Integrating isolated analog outputs into an SCXI chassis for R&D experiments where common-mode voltages reach into the hundreds of volts and a standard terminal block would compromise both data integrity and operator safety
- Replacing a worn or damaged SCXI-1325 in an existing SCXI-1124-based data acquisition system to restore full 250 Vrms isolation compliance before returning the system to service
- Configuring multi-channel current or voltage output stimulus in test fixtures where the SCXI-1124 drives actuators or devices under test requiring isolated, precision analog signals
Frequently Asked Questions
Which module does the SCXI-1325 work with?
The SCXI-1325 is designed exclusively for the SCXI-1124 analog output module. It is not interchangeable with other SCXI modules. Using it with a different module will result in a pinout mismatch.
What chassis is compatible?
The SCXI-1325 works in SCXI-2000, SCXI-1000, SCXI-1000DC, and SCXI-1001 chassis when paired with the SCXI-1124 module.
What wire gauge do the screw terminals accept?
26 to 14 AWG. Strip insulation to no more than 7mm and torque terminal screws to 5-7 in.-lb.
What is the difference between the SCXI-1325 and the TBX-1325?
The SCXI-1325 mounts directly to the SCXI-1124 module inside the chassis. The TBX-1325 is a DIN-rail mountable alternative that connects to the SCXI-1124 via a shielded SH48-48-A cable and provides 30 screw terminals. Both are compatible with the SCXI-1124, but the mounting approach and terminal count differ.
Is a manual or software included?
Not included. This is the terminal block only - no module, chassis, cables, software, or documentation.
A government research facility ran careful experiments behind this terminal block for years. The 250 Vrms isolation held. Now it is looking for its next chassis.
