Allen-Bradley 1794-TB32S Terminal Bases
The Allen-Bradley 1794-TB32S serves as the primary 1794-TB32S Flexible Terminal Base utilized to execute high-density 32-point signal distribution across Allen-Bradley Flex I/O platforms. This spring-clamp terminal assembly provides physical termination for 0.34 to 3.3 mm2 wire conductors and establishes internal backplane power/data paths rated up to 31.2 VAC/DC at 10 A continuous current.
Hardware Specifications
| Parameter | Specification |
|---|---|
| Model | 1794-TB32S |
| Brand | Allen-Bradley |
| Origin | USA |
| Weight | 0.69 lbs (0.31 kg) |
| Dimensions | Standard Flex I/O Base Dimensions |
| Operating Temp | -20 to +70 deg C |
| Power Consumption | Passive Component / Rated 31.2 VAC/DC max |
| Terminal Type | Spring-Clamp Termination Array |
| Current Rating | 10 A max through terminal bus |
| Isolation Voltage | 50 V continuous insulation barrier |
| Wire Size Capacity | 0.34 to 3.3 mm2 (22 to 12 AWG) |
| Operating Frequency | 50 Hz to 60 Hz |
| Terminal Clamp Torque | 0.56 to 0.79 Nm (5 to 7 in-lbs) |
| Storage Temperature | -40 to +85 deg C |
EtherNet/IP Deterministic Networks & Backplane Bus Velocity
The 1794-TB32S terminal base passes high-speed Flexbus backplane communication, linking inserted 32-point I/O modules directly to EtherNet/IP adapter interfaces without transmission latency. Internal bus bar plating maintains signal continuity across adjacent modules, supporting high-density channel scanning cycles. Continuous 50 V isolation barriers protect backplane logic lines from field power surges and ground potential differences across industrial control panels.
Frequently Asked Questions
Q: What wire size range is supported by the spring-clamp terminals on the 1794-TB32S?
A: The spring-clamp terminals accept solid or stranded conductors ranging from 0.34 to 3.3 mm2 (22 to 12 AWG).
Q: What is the maximum continuous current rating for the 1794-TB32S power terminals?
A: The internal bus and terminal strip are rated to carry up to 10 A total continuous current across the module power connections.
Q: What operating temperature limits apply to the 1794-TB32S in industrial panels?
A: The base unit supports extended operating temperatures from -20 to +70 deg C (-4 to +158 deg F).
Field Installation Guidelines
- Mount the 1794-TB32S base unit onto a grounded TS35 DIN rail or secure it directly to an enclosure plate using mounting holes.
- Push adjacent Flex I/O terminal bases together on the rail until the side Flexbus connectors interlock completely.
- Insert stripped conductor ends into the spring-clamp terminals, ensuring wire insulation is seated properly to avoid exposure.
- Set the module mechanical keying dial on the base to the designated position required for the specific 32-point I/O card.
- Verify field power supply levels do not exceed 31.2 VAC/DC and that the total load current remains below 10 A.
Allen-Bradley 1794-TB32S Terminal Bases
Allen-Bradley 1794-TB32S Terminal Bases
The Allen-Bradley 1794-TB32S serves as the primary 1794-TB32S Flexible Terminal Base utilized to execute high-density 32-point signal distribution across Allen-Bradley Flex I/O platforms. This spring-clamp terminal assembly provides physical termination for 0.34 to 3.3 mm2 wire conductors and establishes internal backplane power/data paths rated up to 31.2 VAC/DC at 10 A continuous current.
Hardware Specifications
| Parameter | Specification |
|---|---|
| Model | 1794-TB32S |
| Brand | Allen-Bradley |
| Origin | USA |
| Weight | 0.69 lbs (0.31 kg) |
| Dimensions | Standard Flex I/O Base Dimensions |
| Operating Temp | -20 to +70 deg C |
| Power Consumption | Passive Component / Rated 31.2 VAC/DC max |
| Terminal Type | Spring-Clamp Termination Array |
| Current Rating | 10 A max through terminal bus |
| Isolation Voltage | 50 V continuous insulation barrier |
| Wire Size Capacity | 0.34 to 3.3 mm2 (22 to 12 AWG) |
| Operating Frequency | 50 Hz to 60 Hz |
| Terminal Clamp Torque | 0.56 to 0.79 Nm (5 to 7 in-lbs) |
| Storage Temperature | -40 to +85 deg C |
EtherNet/IP Deterministic Networks & Backplane Bus Velocity
The 1794-TB32S terminal base passes high-speed Flexbus backplane communication, linking inserted 32-point I/O modules directly to EtherNet/IP adapter interfaces without transmission latency. Internal bus bar plating maintains signal continuity across adjacent modules, supporting high-density channel scanning cycles. Continuous 50 V isolation barriers protect backplane logic lines from field power surges and ground potential differences across industrial control panels.
Frequently Asked Questions
Q: What wire size range is supported by the spring-clamp terminals on the 1794-TB32S?
A: The spring-clamp terminals accept solid or stranded conductors ranging from 0.34 to 3.3 mm2 (22 to 12 AWG).
Q: What is the maximum continuous current rating for the 1794-TB32S power terminals?
A: The internal bus and terminal strip are rated to carry up to 10 A total continuous current across the module power connections.
Q: What operating temperature limits apply to the 1794-TB32S in industrial panels?
A: The base unit supports extended operating temperatures from -20 to +70 deg C (-4 to +158 deg F).
Field Installation Guidelines
- Mount the 1794-TB32S base unit onto a grounded TS35 DIN rail or secure it directly to an enclosure plate using mounting holes.
- Push adjacent Flex I/O terminal bases together on the rail until the side Flexbus connectors interlock completely.
- Insert stripped conductor ends into the spring-clamp terminals, ensuring wire insulation is seated properly to avoid exposure.
- Set the module mechanical keying dial on the base to the designated position required for the specific 32-point I/O card.
- Verify field power supply levels do not exceed 31.2 VAC/DC and that the total load current remains below 10 A.
