National Instruments 781338-02 Terminal Block 

National Instruments part number 781338-02 is an identifying part number for the TB-4300B, a Terminal Block with Fault Voltage protection of 300V. The NI 781338-02 is designed for use with the National Instruments PXIe-4300 PXI Analog Input Module, specifically for the B terminal. National Instruments provides NI-DAQmx drivers and LabVIEW application tools for programming both the NI PXIe-4300 module and the NI 781338-02 Terminal Block. 

The terminal block can be used with screw terminals for wire gauges up to 16 AWG, and National Instruments recommends a 5-year calibration interval for the 781338-02. It operates within a temperature range of 0 to 55 °C. The deivce should not be used for connections with signals or in Measurement Categories III/IV, and it has a maximum voltage rating of 300 V to protect against voltage faults. It operates with an attenuation ratio of 30:1 and has an input impedance of 1.2 MΩ. 

The 781338-02 supports input voltage ranges of ±30, 60, 150, and 300 volts. It features an attenuator tolerance of 0.05% and a temperature coefficient of 5 ppm/°C for the attenuators. To ensure specified EMC performance, use this product only with shielded cables and accessories. Additionally, all I/O cables must be no longer than 10 meters (100 feet). Before connecting the NI 781338-02 Terminal Block, it is essential to consult the user manual thoroughly. The manual provides detailed instructions on proper setup, safety precautions, and operational guidelines, ensuring optimal performance and preventing potential damage to the device.