Allen-Bradley 1794-OB16 Flex I/O Output Module

Series#: AllenBradley

Product Details

1794-OB16 Allen-Bradley FLEX I/O Output Module – Designed for reliable digital output control in distributed industrial automation systems.
16-point discrete output interface – Handles 24V DC loads up to 0.5A per point, ideal for solenoids, relays, and indicator lamps.
Hot-swappable terminal base – Allows module replacement without powering down the system, minimizing downtime.
Enhanced diagnostics – Provides open-wire detection and short-circuit protection for robust field wiring integrity.
Compact FLEX I/O form factor – Saves panel space while delivering high-density I/O in harsh industrial environments.
Seamless integration with Rockwell Automation platforms – Compatible with ControlLogix, CompactLogix, and SLC 500 via communication adapters.
100% Brand New & Original, securely packed and ready for reliable global shipping.

Specification

The Allen-Bradley 1794-OB16 is a high-performance FLEX I/O digital output module engineered for demanding industrial control applications. As part of the renowned FLEX I/O family, this module provides 16 solid-state outputs capable of switching 24V DC loads at 0.5A per channel, making it a versatile choice for actuating valves, contactors, and pilot lights in manufacturing, process, and material handling systems. Its compact design and hot-swappable capability ensure minimal disruption during maintenance or expansion, while advanced diagnostic features like open-wire detection and short-circuit protection enhance system reliability. The 1794-OB16 seamlessly interfaces with Rockwell Automation controllers through FLEX I/O communication adapters, supporting both local and remote I/O configurations. Below is the detailed technical specification table for this module.

Parameter	Value
Product Series	1794 FLEX I/O
Model Number	1794-OB16
Output Type	Discrete (Solid-State)
Number of Outputs	16
Output Voltage	24V DC (20.4 to 26.4V DC)
Output Current per Point	0.5A max
Total Output Current (Module)	8A max
Inrush Current	2A for 10ms per point
Output Off-State Leakage	Less than 0.5 mA
Output On-State Voltage Drop	Less than 0.5V at 0.5A
Protection	Short-circuit protection (current limit), thermal shutdown
Diagnostics	Open-wire detection (per point), module status LED
Isolation Voltage	1500V AC between output and backplane (tested for 1 minute)
Power Consumption (Backplane)	100 mA at 5V DC typical
Power Dissipation	2.5W typical at full load
Operating Temperature	0 to 60°C (32 to 140°F)
Storage Temperature	-40 to 85°C (-40 to 185°F)
Relative Humidity	5 to 95% non-condensing
Vibration Resistance	5 g at 10 to 500 Hz per IEC 60068-2-6
Shock Resistance	30 g per IEC 60068-2-27
Enclosure Type	Open-style (requires panel or cabinet)
Wiring	Removable terminal block (screw-type), accepts 14-22 AWG wire
Mounting	DIN rail (35 mm) or panel mount via adapter base
Compatible Terminal Bases	1794-TB2, 1794-TB3, 1794-TB3S, 1794-TBN, 1794-TBNF
Communication Protocol	Backplane interface via FLEX I/O adapter (e.g., 1794-ASB, 1794-AENT)
Keying	Mechanical keying on terminal base prevents incorrect module insertion
Approvals	CE, UL Listed, CSA, ATEX (Zone 2), IECEx (for hazardous locations)
Weight	Approximately 0.14 kg (0.31 lb)
Dimensions (H x W x D)	94 mm x 46 mm x 75 mm (3.7 in x 1.8 in x 2.95 in)