Allen Bradley 1794-TBNF FLEX I/O Dual-Strip Screw-Clamp Terminal Base

Product Description

The Allen Bradley 1794-TBNF is a FLEX I/O terminal base unit designed to provide secure wiring connections for FLEX I/O modules. Featuring two terminal strips with screw-clamp connections, it supports up to sixteen I/O terminals along with dedicated common and supply terminals. Engineered for durability and reliability, the 1794-TBNF ensures stable electrical connections and robust isolation for distributed automation systems.

Technical Specifications

• Manufacturer Allen Bradley

• Product Line FLEX I/O 1794 Series

• Product Type Terminal Base Unit

• Part Number 1794-TBNF

• Weight 0.44 lbs (0.20 kg)

• Terminal Screw Torque 1.4 Nm

• Supply Voltage Range (Max) 250 V AC/DC, 50/60 Hz, 10 A

• Voltage Ratings 24 V AC/DC, 120 V AC/DC, 230 V AC/DC

• Isolation Voltage 250 V continuous

• Connection Type Screw-clamp

• Wire Size Supported 0.34–3.3 mm²

• Terminal Strip Assignment

• Top: I/O terminals / COM

• Bottom: I/O terminals / +V

• I/O Terminals 16 total

• Common Terminals 2

• Supply Terminals 2

• Daisy-Chaining Not supported

• Backplane Current Draw 640 mA @ 5 V DC

• Current Rating 10 A

Application Scenarios

• FLEX I/O distributed systems requiring dual-strip terminal bases

• Machine-level automation with modular wiring needs

• Industrial environments needing reliable screw-clamp connections and robust isolation

FAQ

Q: How many I/O terminals does the 1794-TBNF provide?  A: Sixteen I/O terminals with two common and two supply terminals.

Q: What type of connection does the 1794-TBNF use?  A: Screw-clamp connections for secure wiring.

Q: Can this terminal base be daisy-chained?  A: No, daisy-chaining is not supported.

Comparable Models

• 1794-TBNF: Dual-strip screw-clamp terminal base (this model)

• 1794-TBN: Single-strip screw-clamp terminal base

• 1794-TB3: Spring-clamp terminal base