Allen-Bradley 1734-IB8
POINT I/O 8 Point Digital Input Module
Read from the product label
- Maker
- Allen-Bradley
- Part no.
- 1734-IB8
- Serial / rev.
- as printed on your unit
Image is for illustrative purposes only. Please refer to product description.
Delivery options
Allen-Bradley 1734-IB8 POINT I/O digital input module: eight 24V DC sinking inputs in one group, 10 to 28.8V DC on-state range, DIN rail mounting.
- Manufacturer
- Allen-Bradley
- Manufacturer part no.
- 1734-IB8
- Product family
- POINT I/O Modules (1734)
- Type
- Digital input module
- Category
- PLCs and I/O › Digital I/O modules
- Lifecycle
- Active
- OEM successor
- Not stated
- Technical datasheet
- Data sheet
Technical specifications
- Manufacturer
- Allen-Bradley
- Manufacturer part no.
- 1734-IB8
- Type
- Digital input module
- Application
- I/O module
- Used with
- POINT I/O adapters and terminal bases
- Temperature
- 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):
- 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
- IEC60068-2-27 (Test Ea, Unpackaged Shock): 30 g
- Shock
- IEC60068-2-27 (Test Ea, Unpackaged Shock): 50 g
- Emissions
- IEC 61000-6-4
- North American
- T4A
- UKEX/ATEX temp
- T4
- Enclosure type
- None (open-style)
- Mounting type
- DIN rail
- Number of inputs
- 8 (1 group of 8), sinking
- Voltage, on-state, nom
- 24V DC
- Voltage, on-state range
- 10…28.8V DC
- Voltage, off-state, max
- 5V DC
- Current, on-state, nom
- 4 mA @ 24V DC
- Current, on-state range
- 2 mA…5 mA
- Current, off-state, min
- 1.5 mA
- Input filter time
- 0.5 ms hardware + (0…65 ms selectable)
- POINTBus current, max
- 75 mA max @ 5V DC
- Power dissipation, max
- 1.6 W @ 28.8V DC
- Thermal dissipation
- 5.5 BTU/hr @ 28.8V DC
- Isolation voltage
- 50V (continuous), Reinforced insulation, Type tested at 2500V DC for 60 s, field-side to system
- External DC power
- 24V DC @ 60 Hz
- Terminal base unit
- 1734-TB, 1734-TBS, 1734-TOP, or 1734-TOPS
- Wiring category
- 1 – on signal ports
Show all 31 specificationsShow fewer
- Keyswitch position
- 1
Technical documents (1)
Key features
- Eight sinking inputs in one group
- On-state voltage range of 10 to 28.8V DC
- Input filter 0.5 ms hardware plus 0 to 65 ms selectable
- Field-side to system isolation, type tested at 2500V DC for 60 s
- Uses 1734-TB, 1734-TBS, 1734-TOP or 1734-TOPS terminal base
About the Allen-Bradley 1734-IB8
The 1734-IB8 is a POINT I/O 24V DC 8 channel sink input module. It has 8 inputs in 1 group, a nominal on-state voltage of 24V DC (range 10 to 28.8V DC) and a maximum off-state voltage of 5V DC. On-state current is 4 mA at 24V DC, and maximum power dissipation is 1.6 W at 28.8V DC.
What is the 1734-IB8 used for?
It reads 24V DC signals from sourcing field devices wired to its terminal base and passes them to the controller through the POINT I/O system. It draws up to 75 mA at 5V DC from the POINTBus and mounts on DIN rail.
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-IB8, 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.
Other parts in the Allen-Bradley POINT I/O Modules family
Listed for reference. They differ from the 1734-IB8 in rating, supply, interface or function and are not interchangeable with it unless Allen-Bradley says so. Match the part number on your unit.
| Product | Type | Lifecycle | Qty Available | Price | Action |
|---|---|---|---|---|---|
| Allen-Bradley 1734-IB4POINT I/O 4 Point Digital Input Module | Digital input module | Active | On request | On request | View |
| Allen-Bradley 1734-IE2CPOINT I/O 2 Point Analog Current Input Module | Analog input module | Active | On request | On request | View |
| Allen-Bradley 1734-IE2VPOINT I/O 2 Point Analog Voltage Input Module | Analog input module | Active | On request | On request | View |
| Allen-Bradley 1734-IE4CPOINT I/O 4 Point Analog Current Input Module | Analog input module | Active | On request | On request | View |
| Allen-Bradley 1734-IE8CPOINT I/O 8 Point Analog Input Module | Analog input module | Active | On request | On request | View |
| Allen-Bradley 1734-IR2POINT I/O 2 Point RTD Input Module | Analog input module | Active | On request | On request | View |
| Allen-Bradley 1734-IT2IPOINT I/O 2 Point Thermocouple Input Module | Analog input module | Active | On request | On request | View |
| Allen-Bradley 1734-OB8EPOINT I/O 8 Point Digital Output Module | Digital output module | Active | On request | On request | View |
| Allen-Bradley 1734-OB8S8 Channel Safety Sourcing Output Module | Digital output module | Active | On request | On request | View |
| Allen-Bradley 1734-OE4CPOINT I/O 4 Point Analog Output Module | Analog output module | Active | On request | On request | View |
| Allen-Bradley 1734-OW4POINT I/O 4 Point Relay Output Module | Digital output module | Active | On request | On request | View |
| Allen-Bradley 1734-IB8S8 Channel Safety Sinking Input Module | Safety input module | Active | On request | On request | View |
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