1734-0B8S

Overview of Allen-Bradley 1734-OB8S POINT Guard I/O Safety Output Module

The Allen-Bradley 1734-OB8S is a safety discrete output module designed as part of the POINT Guard I/O family. It provides 8 current sourcing safety output channels rated for 24 V DC operation, supporting safety applications that require a minimum Safety Integrity Level (SIL) of 2. The module supports electronic short-circuit detection and protection, ensuring safe and reliable operation in industrial environments.

Key Features of 1734-OB8S

• Eight (8) safety output channels with current sourcing (NPN) configuration.
• Power supply voltage range: 19.2 to 28.8 V DC.
• Output current per channel: 1 A; total output current: 8 A max.
• Electronic short-circuit fault detection and protection for both short high, short low, and cross-circuit faults.
• Reaction time: less than 6.2 milliseconds.
• Compatible with standard POINT I/O terminal bases: 1734-TB, 1734-TBS, 1734-TOP series.
• Module status indication via yellow lock status LED, green/yellow power status LED, and individual output channel indicators.
• Operating temperature range: -20 to 55 °C (-4 to 131 °F).
• Power dissipation: Approximately 3.02 Watts.
• Open-type enclosure for convenient mounting in industrial control panels.

Technical Specifications

Applications / Use Cases

The 1734-OB8S output module is designed for safety applications in industrial automation settings such as emergency shutdown systems, safety gates, and other machine guarding controls. Its fast reaction time and fault detection enhance system safety and reliability in safety-critical environments.