1794-TB32 Flex I/O Base Allen-Bradley | 32 I/O 10A

1794-TB32 Flex I/O Terminal Base Unit by Allen-Bradley

Key Technical Specifications

• Manufacturer: Allen‑Bradley
• Part Number: 1794-TB32
• Supply Voltage Range: 31.2V DC/AC, 50/60Hz, 10A (max)
• Backplane Current Draw: 640 mA @ 5V DC
• Terminal Configuration: 48 terminals total – 32 I/O, 8 common, 8 supply
• Wire Size: 0.21 – 1.3 mm² (24–16 AWG) stranded copper
• Screw Torque: 0.56–0.79 Nm (5–7 lb‑in)
• Isolation Voltage: 50V continuous (basic insulation, tested at 2121V DC)
• Dimensions: 94 x 94 x 69 mm (H x W x D) with module installed
• Operating Temperature: -20 °C to 70 °C (-4 °F to 158 °F)
• Storage Temperature: -40 °C to 85 °C (-40 °F to 185 °F)
• Humidity: 5–95% non‑condensing
• Shock & Vibration: 30G shock, 5G vibration (10–500 Hz)

Installation & Mounting Options

• Mount the 1794-TB32 directly on a standard DIN rail for quick installation.
• Alternatively, use panel mounting for permanent or space‑constrained setups.
• Slide the base onto the rail and push until it locks firmly in place.
• Ensure the FlexBus connector engages correctly with the adjacent adapter.
• Secure field wiring using the clearly labeled screw‑clamp terminals.

Terminal Assignment & Wiring

• I/O terminals (0–31): connect input or output signals from field devices.
• Common terminals (8 points): provide a shared return path for circuits.
• Voltage terminals (8 points): distribute 24V AC/DC power to the module.
• This base specifically supports 32‑point modules for high‑density applications.
• Use 0.21–1.3 mm² wire for optimal clamping and conductivity.

Environmental & Safety Ratings

• Voltage Rating: 24V AC/DC (max 31.2V)
• Current Capacity: 10 Amperes (continuous)
• FlexBus Draw: 640 mA @ 5V DC
• Isolation: 50V continuous (basic insulation, 2121V DC test)
• Temperature Code: T4A (North America) / T4 (IEC)
• Certifications: c‑UL‑us, CSA
• Enclosure type: open style – suitable for industrial control cabinets.

Package Contents

• 1 x 1794-TB32 Flex I/O Terminal Base Unit
• Integrated screw‑clamp terminal blocks (pre‑installed)
• DIN rail mounting clips and panel mounting hardware
• Installation instruction sheet

Shipping & Logistics

• We ship via FedEx, UPS, or DHL – fast and fully trackable.
• Orders dispatch within 5 business days from our warehouse.
• We keep ample stock of the 1794-TB32 – no backorder delays.
• 30‑day return policy – simple and customer‑friendly.

Frequently Asked Questions (FAQ)

• Q: Is the 1794-TB32 a genuine Allen‑Bradley product?
  Yes, we supply 100% original, brand‑new units direct from Rockwell Automation.
• Q: What is the maximum wire gauge for this base?
  It accepts 16 AWG (1.3 mm²) max and 24 AWG (0.21 mm²) min.
• Q: Can I mount this base on a panel instead of DIN rail?
  Yes, the 1794-TB32 supports both DIN rail and panel mounting.
• Q: What is the operating temperature range?
  -20 °C to 70 °C (-4 °F to 158 °F) with 5‑95% non‑condensing humidity.
• Q: How quickly do you ship?
  We ship within 5 days via FedEx, UPS, or DHL – delivery times vary by destination.
• Q: Which modules are compatible with the 1794-TB32?
  It is designed for 32‑point Flex I/O modules – consult the manual for the full list.

Contact Information

• For inquiries, please email sales@nex-auto.com or call +86 153 9242 9628.
• Partner: NexAuto Technology Limited