1734-OB8 8-Channel Digital Output Module 24V DC | Allen-Bradley

The Original New Allen-Bradley 1734-OB8 8-Channel Digital Output Module is a POINT I/O standard digital output device designed for 24V DC sourcing output applications in distributed industrial automation systems. Fully compatible with POINT I/O communication adapters and Rockwell Automation controllers.

Core Engineering Highlights:
24V DC sourcing outputs | 8-channel digital output | 1.0A per channel (3.0A max per module) | 75 mA POINTBus current | 2.0W power dissipation | 0.1 ms output signal delay

Key Features:

• Original New Allen-Bradley 1734-OB8 module

• 8-channel 24V DC sourcing digital outputs (non-isolated)

• One group of 8 outputs

• Output current rating: 1.0A per output, 3.0A max per module

• Short-circuit protection

• Output signal delay: 0.1 ms

• 8 yellow output status LEDs + 2 green/red module/network status LEDs

• Keyswitch position: 1

• Removal and Insertion Under Power (RIUP) for online module replacement

• Auto Device Replacement (ADR) reduces downtime

• DIN rail mounting, open-style enclosure (IP20)

• Compact 12 mm width for space-constrained panels

Applications:

• Actuating relays, solenoids, and pilot lamps

• Conveyor and material handling systems

• Packaging machinery control

• General factory automation

• Distributed I/O systems

• Industrial machine control panels

Technical Specifications:

• Catalog Number: 1734-OB8

• Module Type: POINT I/O Digital DC Sourcing Output Module

• Outputs: 8 (1 group of 8, non-isolated, sourcing)

• Nominal Output Voltage: 24V DC

• Output Voltage Range: 10–28.8V DC

• ON-State Voltage Drop: 0.2V DC max

• Output Current Rating: 1.0A per output, 3.0A max per module

• Output Signal Delay: 0.1 ms

• Inrush Current: 2A for 10 ms, repeatable every 3 seconds

• OFF-State Leakage: 0.5 mA max

• POINTBus Current: 75 mA max @ 5V DC

• Supply Current: 32 mA

• Power Dissipation: 2.0W max @ 28.8V DC

• Thermal Dissipation: 6.8 BTU/hr max

• Isolation Voltage: 50V continuous (tested to withstand 2500V DC for 60s)

• Short-Circuit Protection: Yes

• Indicators: 8 yellow output status LEDs, 2 green/red module/network status LEDs

• Keyswitch Position: 1

• Terminal Base Compatibility: 1734-TB, 1734-TBS

• Dimensions (HxWxD): 56 x 12 x 75.5 mm (2.21 x 0.47 x 2.97 in.)

• Weight: 31.8 g (0.07 lbs)

• Enclosure Type: Open-style (IP20)

• Mounting: DIN Rail

• Operating Temperature: –25°C to +55°C (–13°F to 131°F)

• Storage Temperature: –40°C to +85°C (–40°F to 185°F)

• Max. Ambient Humidity (non-condensing): 5–95%

• Wiring Category: 2

• Standards: C-TICK, CE, CUL, GOST, KC, MARINE, UL

System Compatibility:

• Rockwell Automation POINT I/O communication adapters (1734-AENT, 1734-AENTR)

• POINT I/O backplane systems

• ControlLogix, CompactLogix, and GuardLogix controllers

• EtherNet/IP, ControlNet, and DeviceNet networks

• 1734-TB / 1734-TBS terminal base assemblies

Related Products:

• 1734-AENTR – EtherNet/IP adapter for distributed POINT I/O systems

• 1734-TB – Terminal base for field wiring (screw type)

• 1734-TBS – Terminal base for field wiring (spring clamp)

• 1734-IB8 – 8-channel digital input module for sensor signals

• 1734-OB8S – Safety-rated version (SIL 3 / PLe) for safety applications

• 1734-OB8SK – Conformal coated version for harsh environments

PLC ERA is an independent industrial automation distributor supplying 100% genuine Original New products through established global supply channels. Allen-Bradley, POINT I/O, ControlLogix, and CompactLogix are trademarks of Rockwell Automation.