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July 2025
778676-01
NI 778676-01, 37 I/O Channels, 60 VDC / 30 Vrms, CB-37FH Horizontal DIN-Rail Terminal Block
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 778676-01 Horizontal DIN-Rail Terminal Block
The National Instruments 778676-01 is a CB-37FH unshielded terminal block providing a connection point for a user to connect directly into their NI DAQ device (through the use of a 37-pin female D-SUB connector). This part serves as a key interface component, allowing users to establish easy-to-use, field wiring interfaces with complex measurement systems. Due to being mounted horizontally on a DIN rail, the 778676-01 is designed for mounting directly inline with standard DIN rails and thus provides a strong, compact solution for both laboratory and industrial cabinet applications. The Horizontal DIN-Rail Terminal Block is crucial for engineers who wish to route analogue and/or digital signals from various sensors/actuators through to NI DAQ hardware for processing and analysis.
The 778676-01 can terminate up to 37 I/O signals and supports wires sized from 12 to 30 AWG. The part is equipped with spring terminals, which offer a secure and vibration-resistant connection, which is a viable alternative to screw-type terminations. A 37-pin female D-SUB connector is located at the rear of the part, which mates to the DAQ device. Field wiring is connected to spring terminal blocks at the front of the terminal block. The 778676-01 will support a wide variety of common industrial signals ranging from 0 to 60 VDC or 0 to 30 Vrms.
In terms of application, the terminal block presents a means to create a clean and maintainable wiring configuration for the purposes of data acquisition. When using the 778676-01, an automation engineer is able to cleanly terminate the sensor and actuator wiring at the DIN rail, thereby making it easier to troubleshoot, reconfigure, and diagnose the measurement equipment. Although the unshielded design may be considered less expensive than other designs because EMI is not a major concern, it provides a simple and direct path between the field wiring and high-speed measurement equipment. Regardless of whether you are using this product in a production testing environment, a research laboratory, or an industrial automation system, the 778676-01 allows you to connect your field wiring to your measurement equipment through a standardised, reliable interconnection methodology that makes each step of the measurement process easier.
| Model Name | CB-37FH |
|---|---|
| Part Number | 778676-01 |
| Part Type | Unshielded Terminal Block |
| Manufacturer | National Instruments |
| Brand | Emerson |
| Back-End Connector | 37-Pin Female D-SUB |
| Front-End Connector | 37-Pin Female Spring Terminal |
| Signal Capacity | 37 I/O channels |
| Wire Gauge Range | 12–30 AWG |
| Max Voltage Rating | 60 VDC / 30 Vrms |
| Mounting Style | Horizontal DIN-Rail |
| Shielding | None (use enclosure for EMC) |
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