Key Product Data
Model: 5094-OB16S
Brand: Allen-Bradley
Manufacturer: Rockwell Automation
Product Type: Safety Digital Output Module
Product Family: FLEX 5000 I/O
UPC: 889508095868
Number of Outputs: 16 channels
Output Type: Sourcing safety outputs
Nominal Output Voltage: 24 V DC
On-State Voltage Range: 18–32 V DC
Rated Output Current: 0.5 A per channel
Maximum Surge Current: 1.8 A per channel
Maximum On-State Voltage Drop: 0.5 V at 0.5 A
Maximum Off-State Voltage: 5 V DC
Maximum Off-State Leakage Current: 0.5 mA per point
Field-Side Power: 24 V DC
Safety Controller Compatibility: GuardLogix 5580 and Compact GuardLogix 5380
Safety Capability: Up to SIL 3, PLe, Category 4 under specified application conditions
Lifecycle Status: Active
Product Introduction
The Allen-Bradley 5094-OB16S is a 16-channel safety digital output module in the FLEX 5000 I/O family. It provides 24 V DC sourcing outputs for controlling compatible field devices within industrial safety control systems.
Designed for distributed I/O installations, the module receives output commands from a compatible safety controller and drives connected devices according to the configured safety application. Its 16 output points support multiple field connections in a single module, making it suitable for machinery and industrial equipment requiring safety-rated output control.
Output Configuration and Electrical Ratings
The 5094-OB16S provides 16 sourcing safety outputs with a nominal operating voltage of 24 V DC. The specified on-state voltage range is 18–32 V DC, and each output point is rated for 0.5 A.
The module has a maximum on-state voltage drop of 0.5 V at 0.5 A. Its specified maximum off-state voltage is 5 V DC, with maximum off-state leakage current of 0.5 mA per point. These characteristics are relevant when matching the module to connected loads and verifying the electrical requirements of the existing output circuit.
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Safety Control and System Integration
The 5094-OB16S is intended for safety applications using compatible GuardLogix 5580 and Compact GuardLogix 5380 controllers. Depending on the application architecture, configuration and applicable safety requirements, the module can support safety functions up to SIL 3, Performance Level PLe and Category 4.
Configuration is performed within the compatible Studio 5000 Logix Designer environment. The module's safety functions must be designed and validated as part of the complete safety system; the module rating alone does not establish the safety performance of an entire machine or installation.
Installation and Field Wiring
The 5094-OB16S is installed as part of a FLEX 5000 I/O assembly and requires a compatible terminal base assembly for field wiring. A 24 V DC field-side power supply must be connected to the designated sensor/actuator supply terminals.
When planning a replacement, verify the terminal base, field-power wiring, controller compatibility and safety configuration. The 5094-OB16S should not be treated as a standard digital output module, because its sourcing outputs and safety functions are intended for a different class of control application.
Diagnostics and Maintenance
The module includes diagnostic circuitry and supports safety output monitoring. These functions help the control system detect relevant output or field-power conditions during operation.
Rockwell Automation provides module-specific firmware and Add-On Profile downloads for the 5094-OB16S. During maintenance, the installed firmware version and controller configuration should be checked against the requirements of the existing FLEX 5000 system.
Product Identification and Replacement
The 5094-OB16S is an active Allen-Bradley FLEX 5000 safety output module, identified by catalog number 5094-OB16S and UPC 889508095868.
When sourcing a replacement, distinguish it from the standard 5094-OB16 digital output module and the extended-temperature 5094-OB16SXT variant. These models have different functions or operating specifications and should not be assumed interchangeable without checking the existing system requirements.
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