Allen-Bradley 1794-TB3G Flex I/O Terminal Base | Rockwell Automation

Allen-Bradley 1794-TB3G Flex I/O Terminal Base Unit

The 1794-TB3G terminal base from Allen-Bradley/Rockwell Automation is part of the Flex I/O 1794 series. It provides reliable wiring connections for Flex I/O modules and supports up to 36 I/O terminals with dedicated power and ground terminals. Its rugged design makes it suitable for harsh industrial environments.

Key Product Information

• Manufacturer: Rockwell Automation
• Brand: Allen-Bradley
• Part Number: 1794-TB3G
• Series: Flex I/O 1794
• Type: Terminal Base Unit

Technical Specifications

• Terminal screw torque: 0.56–0.79 Nm (5–7 lb-in).
• Supply voltage: Up to 31.2 V DC/AC, 50/60 Hz, 10 A.
• Voltage rating: 24 V DC/AC, communication terminals rated 125 V AC/DC.
• Wire size: 0.21–1.3 mm² (24–16 AWG), 75 °C rated.
• Dimensions: 94 × 94 × 69 mm compact design.
• Operating temperature: -20 to 70 °C (-4 to 158 °F).
• Storage temperature: -40 to 85 °C (-40 to 185 °F).
• Relative humidity: 5% to 95% non-condensing.
• Shock rating: 30 G; vibration: 5 G, 10–500 Hz.

Packing List

• 1 × Allen-Bradley 1794-TB3G Terminal Base Unit.
• Quick installation guide.
• Mounting accessories not included.

Shipping and Warranty

• 12-month standard product warranty.
• Global delivery via FedEx, UPS, or DHL.
• Safe packaging to prevent transport damage.

FAQ

• Q: How many I/O points does the 1794-TB3G support?
  A: It supports 36 I/O terminals with commons and positive terminals.
• Q: What wire size is compatible?
  A: Use 0.21–1.3 mm² (24–16 AWG) copper wire rated 75 °C.
• Q: Can it handle high humidity?
  A: Yes, it supports 5–95% non-condensing relative humidity.
• Q: What is the recommended mounting method?
  A: Mount securely on panel or DIN rail.
• Q: What insulation rating is provided?
  A: It offers 50 V continuous isolation, tested to 2121 V DC for 60s.

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