Allen-Bradley 1734-TBS

Technical specifications

Manufacturer

Allen-Bradley

Manufacturer part no.

1734-TBS

Type

Terminal base

Application

Distributed I/O

Used with

1734 POINT I/O system

Field power bus

28.8V DC, 120/240V AC

Signal terminal

28.8V DC, 120V/240V AC

Enclosure type

None (open-style)

Wire type

Solid or stranded shielded copper wire rated at 75 °C (167 °F) or greater, 1.2 mm (3/64 in.) insulation max

Temperature, operating

IEC 60068-2-1 (Test Ad, Operating Cold), IEC 60068-2-2 (Test Bd, Operating Dry Heat), IEC 60068-2-14 (Test Nb, Operating Thermal, Shock): -20…+55 °C (-4…+131 °F)

Temperature, surrounding air max

55 °C (131 °F)

Temperature, nonoperating

IEC 60068-2-1 (Test Ab, Unpackaged Nonoperating Cold), IEC 60068-2-2 (Test Bb, Unpackaged Nonoperating Dry Heat), IEC 60068-2-14 (Test Na, Unpackaged Nonoperating Thermal Shock): -40…+85 °C (-40…+185 °F)

Relative humidity

IEC 60068-2-30 (Test Db, Unpackaged Damp Heat): 5…95% noncondensing

Vibration

IEC 60068-2-6 (Test Fc, Operating): 5 g @ 10…500 Hz

Shock, operating

IEC 60068-2-27 (Test Ea, Unpackaged Shock): 30 g

Shock, nonoperating

IEC 60068-2-27 (Test Ea, Unpackaged Shock): 50 g

Technical documents (1)

• Rockwell Automation POINT I/O selection guide 1734-SG001

Key features

• Field power bus rated 28.8V DC and 120/240V AC
• Signal terminal rated 28.8V DC and 120V/240V AC
• Open-style enclosure, type listed as None
• Operating temperature -20 to +55 °C, surrounding air maximum 55 °C
• Operating vibration 5 g at 10 to 500 Hz, operating shock 30 g

About the Allen-Bradley 1734-TBS

The 1734-TBS is a POINT I/O terminal base. Its field power bus and signal terminals are rated 28.8V DC and 120/240V AC. It is open-style, with no enclosure type, and works from -20 to +55 °C, 55 °C surrounding air maximum. Wiring is solid or stranded shielded copper rated at 75 °C (167 °F) or greater, with 1.2 mm (3/64 in.) insulation maximum.

What is the 1734-TBS used for?

It is the wiring base under a POINT I/O module: field wires land on it, and the module plugs on top, so a module can be changed without rewiring. It is rated for 5 to 95% noncondensing humidity, 5 g vibration at 10 to 500 Hz and 30 g operating shock, and is stored at -40 to +85 °C.

Lifecycle and successor

Active (Rockwell Automation lifecycle status, checked 24 October 2026).

Before you order

What to photograph or confirm so the right unit is quoted.

Read the catalog number 1734-TBS, the series letter and the firmware revision from the label. Send us a photo of the label and we confirm the match before we quote.