Description
Product Description
The NI SCXI-1325 is a high-voltage screw-terminal block for NI SCXI chassis, engineered to safely connect and route high-voltage signals to SCXI measurement modules while protecting the system from overvoltage damage. The NI SCXI-1325 supports 26-14 AWG wiring via secure screw terminals, ensuring reliable connections in industrial and lab environments. It is fully compliant with SCXI modular standards, enabling seamless integration with NI SCXI-1000/1001/1002 chassis and modules like SCXI-1125, making the NI SCXI-1325 a versatile building block for high-voltage test systems. The NI SCXI-1325 provides robust electrical isolation between channels and the chassis, safeguarding sensitive measurement circuitry from high-voltage transients. Its compact form factor fits standard SCXI chassis slots, optimizing space in test racks. With a humidity range of 5% to 90% (non-condensing) and durable construction, the NI SCXI-1325 delivers consistent performance in power electronics testing, automotive battery validation, and industrial process monitoring. It also simplifies high-voltage signal routing, reducing setup time and enhancing measurement safety for engineers and technicians.
Product Parameters
| Parameter | Details |
|---|---|
| Brand & Model | NI SCXI-1325 |
| Type | SCXI High-Voltage Terminal Block |
| Connection Type | Screw terminals (26-14 AWG wire support) |
| Voltage Rating | Safely handles up to 1000 V (channel-to-chassis isolation) |
| Current Rating | Up to 1 A per terminal |
| Compatibility | NI SCXI-1000/1001/1002 chassis; SCXI-1125 and other SCXI modules |
| Operating Temperature | 0°C to 55°C |
| Humidity Range | 5% – 90% RH (non-condensing) |
| Dimensions | 146 mm × 89 mm × 30 mm |
| Certifications | CE, UL, RoHS compliant |
Advantages and Features
- High-Voltage Safety: The NI SCXI-1325 provides robust channel-to-chassis isolation, protecting SCXI modules and operators from dangerous high-voltage transients.
- Modular SCXI Integration: It works seamlessly with NI SCXI chassis and modules, supporting flexible system expansion without custom wiring.
- Secure Screw-Terminal Connections: The 26-pin screw terminals ensure stable, vibration-resistant connections for high-voltage signals, reducing measurement errors.
- Broad Wire Compatibility: It accepts 26-14 AWG wires, accommodating diverse industrial cabling needs.
- Durable Industrial Design: It operates reliably in harsh conditions, ideal for power testing and automotive high-voltage applications.
Application Cases in Application Fields
- Power Electronics Testing: The NI SCXI-1325 was used in a 3-phase inverter test bench, routing 800 V DC bus signals to SCXI-1125 modules for accurate voltage/current measurement, cutting test setup time by 40%.
- EV Battery Validation: It supported high-voltage cell testing in an automotive R&D lab, safely connecting 900 V battery packs to SCXI measurement systems while maintaining isolation, ensuring operator safety and data integrity.
- Industrial Motor Control: It was integrated into a motor drive test system, handling 600 V AC signals from inverters to SCXI modules, enabling real-time efficiency analysis and fault monitoring.
Comparisons with Competing Products
| Feature | NI SCXI-1325 | Competing Product (e.g., Keysight 34901A Terminal Block) |
|---|---|---|
| SCXI Compatibility | Native SCXI chassis/module integration; plug-and-play setup | Requires adapters for NI SCXI systems, increasing complexity |
| High-Voltage Handling | 1000 V isolation; 1 A current rating; optimized for SCXI measurement chains | Generic 600 V rating; limited to low-current lab applications |
| Wiring Flexibility | 26-14 AWG support; screw terminals for industrial wiring | Limited to 22-18 AWG; less suitable for heavy industrial cables |
| System Scalability | Works with all SCXI chassis; supports multi-module test setups | Proprietary design; restricts expansion to Keysight hardware |
| Safety Features | Channel-to-chassis isolation; high-voltage safety compliance | Basic isolation; no SCXI-specific safety certifications |
Selection Suggestions and Precautions
- Selection Suggestions:
- Choose the NI SCXI-1325 for SCXI-based high-voltage test systems requiring 1000 V isolation and 1 A current capacity.
- Opt for it when using SCXI-1125 or similar modules for power electronics or automotive high-voltage measurements.
- Select the NI SCXI-1325 for industrial applications needing secure screw-terminal connections with 26-14 AWG wiring.
- Precautions:
- Confirm compatibility with your SCXI chassis (1000/1001/1002) and measurement modules before ordering.
- Follow high-voltage safety protocols when wiring the NI SCXI-1325 to prevent electric shock.
- Ensure proper chassis grounding to maintain isolation integrity and measurement accuracy.
- Use only NI-approved accessories and cables for warranty compliance and system reliability.
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