Allen-Bradley 1734-OB8S POINT I/O 8-Channel Safety Sourcing Output Module

Allen-Bradley · HMIs & Displays

Description  The Allen-Bradley 1734-OB8S is a POINT I/O safety output module designed to provide eight current sourcing output channels. Operating at 24 VDC, it integrates into GuardLogix and SmartGuard safety systems for reliable machine and process safety control.     Technical Specifications  Condition New / Never Used Surplus Brand Allen-Bradley Series POINT I/O 1734 Part Number 1734-OB8S Manufacturer Rockwell Automation Module Type Safety I/O Module Outputs 8-Point Supply Voltage 24 Volts DC Enclosure Open Dimensions 3.03 x 0.98 x 2.17 in (HxWxD) Output Current 8 A Power Dissipation 4.5 Watts Thermal Dissipation 15.38 BTU/hour Indicators 1 yellow lock status indicator 1 green/yellow power status indicator 8 I/O channel status indicators       Information About 1734-OB8S The 1734-OB8S is part of the Allen-Bradley POINT I/O 1734 series, developed for safety-critical applications requiring distributed I/O solutions. It provides eight solid-state sourcing outputs, each rated at 1 A, with a total aggregate current capacity of 8 A per module. The module supports dual-channel mode for redundancy, enhancing functional safety performance. It operates with a nominal supply voltage of 24 VDC within a range of 19.2–28.8 VDC and has a maximum power dissipation of 4.5 W. Safety features include short-circuit detection, cross-circuit and overload protection, and diagnostic indicators for channel, power, and lock status. The unit has an isolation rating of 50 V continuous between field and system sides, tested to 707 VDC for 60 seconds. Compact and DIN rail–mounted, the 1734-OB8S is widely used in safety control architectures for manufacturing, material handling, and machine automation systems. Key Features: Output Channels: Eight solid-state, current sourcing outputs rated at 1 A per channel, 8 A aggregate. Voltage Range: Operates at 24 VDC nominal, with 19.2–28.8 VDC supply range. Safety Functionality: Supports dual-channel mode for redundancy and reliable safety integration. Protection: Built-in detection for short circuits, cross-circuit faults, and overload conditions. Performance: Reaction time up to 6.2 ms with maximum field capacitance per output of 950 nF. Power: Maximum power dissipation of 4.5 W, typical 3.02 W, with thermal dissipation of 15.38 BTU/hr. Isolation: 50 V continuous insulation between field side and system; tested at 707 VDC. Diagnostics: Includes status LEDs for module lock, power, and individual channel activity. The 1734-OB8S delivers the reliability and precision required for safety-critical output control in industrial automation.

Brand: Allen-Bradley · Category: HMIs & Displays

Key features

• Output Channels: Eight solid-state, current sourcing outputs rated at 1 A per channel, 8 A aggregate.
• Voltage Range: Operates at 24 VDC nominal, with 19.2–28.8 VDC supply range.
• Safety Functionality: Supports dual-channel mode for redundancy and reliable safety integration.
• Protection: Built-in detection for short circuits, cross-circuit faults, and overload conditions.
• Performance: Reaction time up to 6.2 ms with maximum field capacitance per output of 950 nF.
• Power: Maximum power dissipation of 4.5 W, typical 3.02 W, with thermal dissipation of 15.38 BTU/hr.
• Isolation: 50 V continuous insulation between field side and system; tested at 707 VDC.
• Diagnostics: Includes status LEDs for module lock, power, and individual channel activity.

Specifications

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