NI 3-Pin Terminal Block

The NI 3-Pin Terminal Block provides a secure connection interface for signal wiring in measurement and automation systems. This screw terminal component integrates sensors, actuators, and instrumentation through a structured electrical interface designed to simplify system assembly while maintaining signal integrity across data acquisition and National Instruments hardware platforms.

– Technical Specifications

• Connector Type: Screw Terminal Block
• Pin Count: 3
• Pitch: 3.5 mm (NI-9962); 2.54 mm (alternate configurations)
• Wire Gauge Compatibility: 14–30 AWG (varies by model); NI-9263 supports 0.2 mm² to 2.5 mm² copper conductors
• Wire Strip Length: 4.0 mm to 13 mm depending on model
• Screw Torque: 0.3 N·m to 0.6 N·m (2.7 lb·in. to 5.3 lb·in.)
• Contact Resistance: 20 mΩ typical
• Voltage Rating: 125 V to 300 V (UL/IEC standards apply)
• Current Rating: 6 A to 16 A (model-dependent)

– Key Features

• Screw-terminal construction ensures reliable, repeatable wire termination
• Low contact resistance minimizes signal degradation
• Modular 3-pin configuration supports flexible sensor and actuator integration
• Multiple pitch and wire gauge options accommodate diverse wiring requirements
• Rated for industrial measurement and control environments

– Typical Applications

• Multi-channel sensor signal routing in DAQ systems
• Industrial automation control circuits
• Instrumentation signal distribution
• Test equipment wiring harness termination

– Compatibility & Integration

The 3-Pin Terminal Block integrates directly with National Instruments data acquisition hardware and modular instrumentation platforms. Specific models (NI-9263, NI-9962, TB-2621) support varying wire gauges and voltage/current ratings to match system requirements. Consult product-specific documentation for exact dimensional and electrical compatibility.