National Instruments TB-2621

The National Instruments TB-2621 Terminal Block, part number 779444-01, is designed to facilitate connections for various 37-pin D-SUB devices, supporting both high-voltage and low-voltage applications. This terminal block is categorized as a category II device, capable of handling voltages up to 150 VDC/VAC and featuring a maximum current rating of 2 A per conductor. The TB-2621 is equipped with 40 screw terminals that accommodate wire sizes ranging from 16 to 30 AWG, ensuring versatile connectivity for up to 37 input/output signals. This component integrates seamlessly with various 37-pin PXI devices such as the NI-6521, NI-6510, NI-6520, NI-6516, NI-6519, NI-6517, and NI-6518. It includes a strain-relief bar for enhanced durability and is designed for DC coupling. Although the TB-2621 is listed as obsolete, it remains available for purchase and repair through Apex Waves. The terminal block measures 4.1 x 3.5 x 0.7 inches and weighs 10 ounces, making it a compact addition to any setup. Users can access the user manual and maintenance guide for detailed operational insights. For pricing information, please contact a National Instruments sales representative.