1734-OB4 | Allen-Bradley POINT I/O Digital Output Module, 4-P, 24V DC
1734-OB4 | Allen-Bradley POINT I/O Digital Output Module, 4-P, 24V DC
1734-OB4 | Allen-Bradley POINT I/O Digital Output Module, 4-P, 24V DC
    1734-OB4 | Allen-Bradley POINT I/O Digital Output Module, 4-P, 24V DC
1734-OB4 | Allen-Bradley POINT I/O Digital Output Module, 4-P, 24V DC

1734-OB4 | Allen-Bradley POINT I/O Digital Output Module, 4-P, 24V DC

Part #: 1734-OB4 Manufactured by: Allen-Bradley
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$59.00
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$59.00
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Product Overview
The Allen-Bradley 1734-OB4 is a POINT I/O Digital DC Sourcing Output Modules. It has 4 Outputs and an Output Voltage of 24...  Read more
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Product Description P/N: 1734-OB4

Description / Specifications

Description 

The Allen-Bradley 1734-OB4 is a POINT I/O Digital 24VDC Sourcing Output Modules. It has Four (4) Outputs channels with diagnostic LEDs. This module is DIN Rail mounted and used with a POINT IO communication adapter for implementing Distributed IO solution.

 

Technical Specifications 

 

Brand Allen-Bradley
Series POINT I/O
Part Number 1734-OB4
Manufacturer Rockwell Automation
Module Type Digital DC Sourcing Output Modules
Outputs 4
Output Voltage 24 Volts DC
Electronically Protected Yes
POINTBus Current 75 milliamps
Output Current 3 amps/module
Power Dissipation 1.2 Watts
Thermal Dissipation 4.1 BTU/hour
Message Size 1 Byte
Indicators 4 yellow – output status 2 green/red –module/network status
Wiring Base Assembly 1734-TB or 1734-TBS

  

 

Information About 1734-OB4

The 1734-OB4 is a Programmable Logic Controller (PLC) module that belongs to the POINT IO product family that is manufactured by Rockwell Automation. This module is a POINT IO 24VDC Discrete Output module that is used to energize or actuate electrical loads and actuators such as Pilot Lamps, Solenoid actuated devices, Relays, Buzzer, Horn, Siren, annunciators and other components.

This module is built with Four (4) 24VDC Sourcing modules. It also has Four (4) Status indicators dedicated for each channel that is used to indicate each channel’s activity. It also has Two (2) Green or Red status indicators for providing Module and Network status feedback.

The required wiring base assembly for this module are 1734-TB or 1734-TBS. The module cannot be operated without these assemblies including a POINT IO communication adapter. It may be used with CompactLogix and ControlLogix controller platforms.

The register size of this Discrete Output module is 1 Byte. Channels 0, 1, 2 and 3 are assigned to Bits 0, 1, 2 and 3 respectively. The remaining bits such as Bit 4, 5, 6 and 7 are not used. This output register can be accessed in the main controller’s register tables.

The Allen-Bradley 1734-OB4 is a POINT IO module with Four (4) non-isolated, sourcing outputs channels. It has a nominal voltage of 24 Volts DC and it has an ON-state voltage range of 10 to 28.8 Volts DC. Its maximum ON-state voltage drop is 0.2 Volts DC. The minimum ON-state current per channel is 1.0 mA and the OFF-state voltage peak is 28.8 Volts DC. The output current rating is 1.0 Amp per output not exceeding 3.0 Amps maximum per module. The 1734-OB4 comes with different indicator lights, 4 yellow for output statuses and 2 green/red for the module and network statuses. The model’s terminal base screw torque mass is 0.8 N-m (7 pounds on an inch) Its power dissipation is 28.8 Volts DC at 1.2 W and the thermal dissipation is greatest at 28.8 Volts DC and 4.1 BTU/hour.

The module’s maximum OFF-state leakage is 0.5 mA and it has an output signal delay for both OFF-ON and ON-OFF of 0.1 milliseconds. The 1734-OB4’s surge current is 2 Amps for 10 milliseconds, repeatable for 3 seconds. It has an external DC power supply current of 16 mA and an isolation voltage of 50 Volts (continuous) tested at 2500 Volts DC for 60 seconds. The dimensions are 56.0 x 12.0 x 75.5 millimeters. It has an approximate weight of 33.17 grams and the relative humidity range is 5 to 95%, non-condensing. The 1734-OB4’s operating temperature is -20 to 55 degrees Celsius and the non-operating temperature is -40 to 85 degrees Celsius. Its operating shock is 30 g and its non-operating shock is 50 g.



Manufacturer information

Allen-Bradley, a brand of Rockwell Automation, specializes in manufacturing industrial automation equipment. The product range includes programmable logic controllers (PLCs), motion control systems, safety devices, motor control equipment, automation software, and HMI panels. Allen-Bradley products are known for their reliability and integration with other systems.

Frequently Asked Questions about 1734-OB4
Question: What is the 1734-OB4?
Date Update:12/06/2025
Answer:

The 1734-OB4 is a digital output module from the POINT I/O family of I/O modules by Allen-Bradley. It has 4 output channels that can be used to control external devices, such as relays, solenoids, or actuators, in an industrial automation system. The module is designed for easy integration into ControlLogix or CompactLogix systems and communicates via Ethernet/IP or other backplane protocols.

Question: Where can I find the manual for the 1734-OB4?
Date Update:12/06/2025
Answer:

The manual for the 1734-OB4 can be found on the Rockwell Automation website. To access the manual:

  • Visit the Rockwell Automation website.
  • Navigate to the Support or Downloads section.
  • Search for 1734-OB4 in the product documentation section.
  • Download the user manual, which includes detailed information on wiring, configuration, installation, and troubleshooting.

Alternatively, you can check the documentation within RSLogix 5000 or Studio 5000 if you're using this software for programming your PLC.

Question: What is the wiring configuration for the 1734-OB4?
Date Update:12/06/2025
Answer:

The 1734-OB4 module provides 4 digital output channels, which can be used to control devices like relays or actuators. The wiring configuration depends on the type of load you're controlling (e.g., standard relay, solenoid, or light). Here’s how to wire the module:

1. Power Supply:

  • The 1734-OB4 module is powered by the POINT I/O backplane. It is important that the backplane is powered correctly to ensure the module operates as expected.

2. Output Connections:

  • For Standard DC Loads (e.g., solenoids, relays):
    Connect the positive terminal of the load to the output terminal (for example, O0, O1, O2, O3).
    Connect the negative terminal of the load to the common terminal (e.g., C0).
  • For AC Loads: The module is DC-only, meaning it cannot be used for directly controlling AC devices. An external relay or solid-state relay (SSR) should be used to interface AC loads with the 1734-OB4.

3. Common Terminal:

  • The 1734-OB4 module has a common terminal (labeled C0), which is shared by all 4 outputs. When wiring, ensure the common terminal is properly connected to the ground or return path of your load.

Always refer to the wiring diagram provided in the user manual for the exact terminal locations and configuration for your application.

Question: What are the diagnostic features of the 1734-OB4?
Date Update:12/06/2025
Answer:

The 1734-OB4 module provides several diagnostic features that can be accessed through the PLC or through the module’s LED indicators. These diagnostics help to monitor the health of the module and ensure proper operation:

  1. Status LED: The status LED indicates the operational status of the module. If the LED is solid green, the module is functioning normally. A flashing red LED or a solid red LED typically indicates an issue with the module.
  2. Output LEDs: Each output channel (O0, O1, O2, O3) has an associated LED that indicates whether the output is energized or de-energized. If an output is energized, the corresponding LED will be illuminated.
Question: What is the voltage range for the outputs on the 1734-OB4?
Date Update:12/06/2025
Answer:

The 1734-OB4 module provides 24V DC output signals. The output points are typically designed for on/off control (digital control) and can source or sink current to connected devices. The typical output voltage range is 20.4V to 26.4V DC.

IQElectro is not an authorized distributor.
QElectro LLC (IQElectro) is NOT an Authorized Distributor or in any way affiliated with Rockwell Automation, Siemens, or any other Manufacturers. IQElectro is NOT an Authorized Dealer of this product. The product may be of older version, date codes, or design than that available from authorized dealers. As IQElectro is not an authorized dealer of this product, the Original Manufacturer's Warranty and Support DO NOT apply. IQElectro sells SURPLUS only and DOES NOT SELL SOFTWARE or FIRMWARE licenses For more detailed information, please refer to the full version of our disclaimer policy Disclaimer Policy.
Description / Specifications

Description 

The Allen-Bradley 1734-OB4 is a POINT I/O Digital 24VDC Sourcing Output Modules. It has Four (4) Outputs channels with diagnostic LEDs. This module is DIN Rail mounted and used with a POINT IO communication adapter for implementing Distributed IO solution.

 

Technical Specifications 

 

Brand Allen-Bradley
Series POINT I/O
Part Number 1734-OB4
Manufacturer Rockwell Automation
Module Type Digital DC Sourcing Output Modules
Outputs 4
Output Voltage 24 Volts DC
Electronically Protected Yes
POINTBus Current 75 milliamps
Output Current 3 amps/module
Power Dissipation 1.2 Watts
Thermal Dissipation 4.1 BTU/hour
Message Size 1 Byte
Indicators 4 yellow – output status 2 green/red –module/network status
Wiring Base Assembly 1734-TB or 1734-TBS

  

 

Information About 1734-OB4

The 1734-OB4 is a Programmable Logic Controller (PLC) module that belongs to the POINT IO product family that is manufactured by Rockwell Automation. This module is a POINT IO 24VDC Discrete Output module that is used to energize or actuate electrical loads and actuators such as Pilot Lamps, Solenoid actuated devices, Relays, Buzzer, Horn, Siren, annunciators and other components.

This module is built with Four (4) 24VDC Sourcing modules. It also has Four (4) Status indicators dedicated for each channel that is used to indicate each channel’s activity. It also has Two (2) Green or Red status indicators for providing Module and Network status feedback.

The required wiring base assembly for this module are 1734-TB or 1734-TBS. The module cannot be operated without these assemblies including a POINT IO communication adapter. It may be used with CompactLogix and ControlLogix controller platforms.

The register size of this Discrete Output module is 1 Byte. Channels 0, 1, 2 and 3 are assigned to Bits 0, 1, 2 and 3 respectively. The remaining bits such as Bit 4, 5, 6 and 7 are not used. This output register can be accessed in the main controller’s register tables.

The Allen-Bradley 1734-OB4 is a POINT IO module with Four (4) non-isolated, sourcing outputs channels. It has a nominal voltage of 24 Volts DC and it has an ON-state voltage range of 10 to 28.8 Volts DC. Its maximum ON-state voltage drop is 0.2 Volts DC. The minimum ON-state current per channel is 1.0 mA and the OFF-state voltage peak is 28.8 Volts DC. The output current rating is 1.0 Amp per output not exceeding 3.0 Amps maximum per module. The 1734-OB4 comes with different indicator lights, 4 yellow for output statuses and 2 green/red for the module and network statuses. The model’s terminal base screw torque mass is 0.8 N-m (7 pounds on an inch) Its power dissipation is 28.8 Volts DC at 1.2 W and the thermal dissipation is greatest at 28.8 Volts DC and 4.1 BTU/hour.

The module’s maximum OFF-state leakage is 0.5 mA and it has an output signal delay for both OFF-ON and ON-OFF of 0.1 milliseconds. The 1734-OB4’s surge current is 2 Amps for 10 milliseconds, repeatable for 3 seconds. It has an external DC power supply current of 16 mA and an isolation voltage of 50 Volts (continuous) tested at 2500 Volts DC for 60 seconds. The dimensions are 56.0 x 12.0 x 75.5 millimeters. It has an approximate weight of 33.17 grams and the relative humidity range is 5 to 95%, non-condensing. The 1734-OB4’s operating temperature is -20 to 55 degrees Celsius and the non-operating temperature is -40 to 85 degrees Celsius. Its operating shock is 30 g and its non-operating shock is 50 g.



Manufacturer information

Allen-Bradley, a brand of Rockwell Automation, specializes in manufacturing industrial automation equipment. The product range includes programmable logic controllers (PLCs), motion control systems, safety devices, motor control equipment, automation software, and HMI panels. Allen-Bradley products are known for their reliability and integration with other systems.

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