Technical data

ManualsBrandsAllen-Bradley ManualsAdapter1794ASB Series B

Publication 1794-2.1 - January 2000

26 Terminal Base Unit Cat. No. 1794-TBN FLEX I/O and FLEX Integra Product Data

Terminal Base Unit Cat. No. 1794-TBN

Wiring

ATTENTION

• Total current draw through the terminal base

unit is limited to 10A. Separate power

connections may be necessary.

• Make certain that the hook on the terminal base

you are installing is properly hooked into the

adjacent terminal base adapter. Failure to lock

the hook into the adjacent base/adapter can

result in loss of communication on the

backplane.

• Do not force the terminal base into the adjacent

base/adapter. Forcing the units together can

bend or break the hook and allow the units to

separate and break communication over the

backplane.

1794-TBN

40096

Shown with

fuse cover in

the “open”

position

16 0 2 4 6 8 10 12 14 33

34 1 3 5 7 9 11 13 15 51

1794-TBN

Even Numbered Terminals 0 thru 14

Odd Numbered Terminals 1 thru 15

16, 0, 2, 4, 6,

8, 10, 12, 14, 33

34, 1, 3, 5, 7,

9, 11, 13, 15, 51

40097

Specifications - 1794-TBN

Number of Terminals 2 rows of 10 terminals with cover

Terminal Screw Torque 7-9 inch-pounds

Current Capacity 10A maximum

Voltage Rating 264V ac maximum

Isolation Voltage Tested at 2500V dc for 1s between user terminals

and logic side circuitry

Channel-to-channel isolation determined by

inserted module.

General Specifications

Dimensions (with module

installed in base) HxWxD

94mm x 94mm x 69mm (3.7in x 3.7in x 2.7in)

Environmental Conditions

Operational Temperature

Storage Temperature

Relative Humidity

Shock Operating

Non-operating

Vibration

0 to 55

C (32 to 131

-40 to 85

C (-40 to 185

5 to 95% noncondensing

30g peak acceleration, 11(±1)ms pulse width

50g peak acceleration, 11(±1)ms pulse width

Tested 5g @ 10-500Hz per IEC 68-2-6

Conductors Wire Size