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July 2025
TBX-1328 Request for Availability
TBX-1328, 24 Screw Terminals, High-Accuracy Isothermal Terminal Block
Rated 4.8/5 | 18 ratings
Actual item may vary if no part number is provided on quote request.
✔ 2 Year Warranty Included
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✔ NIST Calibration Available
Andrew Gar**** Verified Buyer
" Amazing to work with and had my order within 1 week after purchasing with all NI certs and data that were needed. "
March 2025
Said Sai**** Verified Buyer
" Competent contact for highly specialized components. The support team is very knowledgeable. Many thanks for the help and the fast shipping! "
January 2025
Bob C**** Verified Buyer
" Jason was able to get our emergency situation taken care of quickly and professionally. "
May 2025
Gregg Flecki**** Verified Buyer
" Great service and great products. This is my 2nd time using Apex Waves, truly impressed. "
January 2025
Carol Zimme**** Verified Buyer
" Very responsive and helpful, competitive pricing. Good source! "
July 2025
Andrew Gar**** Verified Buyer
" Amazing to work with and had my order within 1 week after purchasing with all NI certs and data that were needed. "
March 2025
Said Sai**** Verified Buyer
" Competent contact for highly specialized components. The support team is very knowledgeable. Many thanks for the help and the fast shipping! "
January 2025
Bob C**** Verified Buyer
" Jason was able to get our emergency situation taken care of quickly and professionally. "
May 2025
Gregg Flecki**** Verified Buyer
" Great service and great products. This is my 2nd time using Apex Waves, truly impressed. "
January 2025
National Instruments TBX-1328 Isothermal Terminal Block
The NI TBX-1328 (Part Number: 777207-28) is a High-Accuracy, Isothermal Terminal Block. This high-efficiency model can easily be mounted on a DIN rail and can be connected to the SCXI-1121, SCXI-1126, and SCXI-1125, or SCXI-1120/D front connector.
This shielded Terminal Block comes featured with a high-precision and high-quality thermistor for cold-junction compensation. Moreover, the isothermal copper plates incorporated in this Terminal Block limits the temperature gradient and its effects across the screw terminals. Thus, the user can expect more accurate thermocouple readings. A wide operating temperature range of this Terminal Block enables it to be used in unforgiving industrial environments.
For easy connection, the NI TBX-1328 offer 24 screw terminals. Out of these 24 terminals, eight connect to SCXI chassis ground, employing the SH32-32-A cable’s shield. When used in conjunction with the SCXI-1126, SCXI-1125, or SCXI-1120/D, the sixteen unused screw terminals are used for connecting signals to eight channels of the corresponding SCXI module in eight pairs. For the SCXI-1121, four pairs connect to the excitation channels of the SCXI module and four screw terminal pairs are used to connect signals to the four input channels of the module.
The National Instruments TBX-1328 Terminal Block comes equipped with eight resistor sockets as well. These resistor sockets are provided to be used with the 4 mA to 20 mA current input. For each input channel, three terminals (chassis ground, CH-, and CH+) are included. The isothermal capabilities of this Terminal Block make it an ideal solution for applications where thermocouples are used.
| Model | TBX-1328 |
|---|---|
| Manufacturer | National Instruments |
| Part Number | 777207-28 |
| Type | Isothermal Terminal Block |
| Connectivity | Screw Terminals |
| Cabling | SH32-32-A |
| Coupling | DC |
| Dimensions | 5.0 by 3.0 by 4.4 in. |
| Weight | 3.5 oz. |
| Warranty | 2-3 Year Warranty |
| TBX-1328 Manual | User Manual and Maintenance Manual Available for Download |
| Price | Contact a sales representative for a quote. |
Associated part numbers for TBX-1328:
National Instruments TBX-1328 Frequently Asked Questions
Question: How many screw terminals does the NI TBX-1328 have?
Answer: The NI TBX-1328 has 24 screw terminals.
Question: Which SCXI modules can be used with the TBX 1328?
Answer: The following SCXI modules can be used with the TBX 1328: the SCXI-1120/D, SCXI-1121, SCXI-1125, and SCXI-1126.
Question: What is the maximum wire gauge for the TBX-1328?
Answer: The maximum wire gauge for the TBX-1328 is 16 AWG.
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