1794-TB2 Allen-Bradley Flex I/O Terminal Base

Allen-Bradley 1794-TB2 Flex I/O Terminal Base Unit Overview

Key Technical Specifications

• Brand: Allen-Bradley.
• Part Number / Catalog No.: 1794-TB2.
• Product Type: Flex I/O Terminal Base Unit.
• Voltage Rating: 24V DC/AC, 120V DC/AC.
• Continuous Isolation Voltage: 125V.
• Maximum Current Capacity: 10 Amps.
• Wire Size: 0.21-1.3 mm² (24-16 AWG stranded copper).
• Terminal Screw Torque: 0.56-0.79 Nm (5-7 lb-in).
• Maximum Insulation Thickness: 3/64 inch (1.2 mm).
• Wiring Category: Category 2.

Physical and Environmental Specifications

• Dimensions (H x W x D): 94 x 94 x 69 mm (3.7 x 3.7 x 2.7 inches).
• Enclosure Type: Open style.
• Operating Temperature: 0 to 55 °C.
• Storage Temperature: -40 to 85 °C.
• Operating Vibration: 5 g at 10 to 500 Hz.
• Operating Shock: 30 g.
• Non-operating Shock: 50 g.

Terminal Configuration and Components

• The unit includes one row of 16 terminals for I/O connections.
• It also provides one row of 18 terminals and one row of 2 terminals.
• A female FlexBus connector sits on the base unit for module communication.
• A male FlexBus connector with a cover plug protects the bus extension.
• A key switch prevents incorrect module insertion.
• Panel mounting holes allow secure installation on flat surfaces.
• Input/output terminal strips accept field wiring directly.
• A locking tab and module locking latch secure the I/O module in place.

Frequently Asked Questions (FAQ)

• Q: What wire types work with this terminal base?
  A: Use 24-16 AWG stranded copper wire with 3/64 inch max insulation thickness.
• Q: Does the 1794-TB2 provide channel-to-channel isolation?
  A: No, isolation depends on the specific I/O module you insert into this base.
• Q: Can I mount this unit on a DIN rail?
  A: Yes, the 1794-TB2 supports both DIN rail and panel mounting methods.
• Q: Do you have this item in stock?
  A: Yes, we maintain stock available for immediate shipping.
• Q: What are your shipping and return policies?
  A: We ship within 5 days after order confirmation. We use DHL, FedEx, or UPS. We support 30-day returns.

Contact Information Inquiries: sales@nex-auto.com , +86 153 9242 9628 . Partner NexAuto Technology Limited : https://www.nex-auto.com/