Product Introduction
Upgrade your discrete input system with the Allen-Bradley 1794-IA16 Flex I/O AC Digital Input Module. Designed for industrial automation environments, this module provides 16 non-isolated input channels capable of interfacing directly with AC field devices. As part of the proven Flex I/O family, the Allen-Bradley 1794-IA16 offers a cost-effective path for replacing older modules or expanding existing control networks.
Technical Specifications Breakdown
The Allen-Bradley 1794-IA16 operates across an input voltage range of 74 to 132 VAC with a nominal input current of 12 mA at 120 VAC. Key specifications include:
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Inputs: 16 non-isolated
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On-state voltage: 74-132 VAC
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Off-state voltage: max 20 VAC
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On-state current: min 5.49 mA, max 14.81 mA
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Off-state current: min 2.9 mA
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FlexBus current: 20 mA at 5 VDC
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Power dissipation: 6.4 W at 132 VAC max
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Isolation: 1264 VAC for 60 s (field-to-system), continuous 120 VAC
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Indicators: 16 yellow status LEDs
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Mounting: DIN rail
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Dimensions: 94 x 94 x 69 mm (3.7 x 3.7 x 2.7 in.)
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Operating temperature: 0 to 55 °C (32 to 131 °F)
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Storage temperature: -40 to 85 °C (-40 to 185 °F)
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Vibration: 5g at 10–500 Hz
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Shock: operating 30 g, non-operating 50 g
Industry Applications
Typical applications for the Allen-Bradley 1794-IA16 include monitoring limit switches, push buttons, and proximity sensors in manufacturing lines, packaging machines, and material handling systems. Its wide AC voltage range makes it ideal for retrofitting legacy 120 VAC discrete input points with modern Flex I/O architecture, reducing downtime during upgrades.
Installation & Setup Guidance
Mount the Allen-Bradley 1794-IA16 on a standard DIN rail. Select a compatible terminal base from the list: 1794-TB3, 1794-TB3S, 1794-TBN, 1794-TB3K, 1794-TB3SK, or 1794-TBNK. The module’s keyswitch position must be set to 8 to ensure proper alignment with the base. No special tools are required; the module snaps onto the base securely. Wire field devices using the terminal base connections, ensuring wire sizes comply with the base specifications.
Compatibility & Integration
The Allen-Bradley 1794-IA16 works seamlessly with Flex I/O communication adapters such as ControlNet (1794-ACN, 1794-ACNR, 1794-ACNR15), EtherNet/IP (1794-AENT, 1794-AENTR), and Remote I/O (1794-ASB). This wide compatibility allows the module to integrate into existing Allen-Bradley PLC and DCS platforms without complex reconfiguration.
Selection Guide & Purchasing Advice
When ordering the Allen-Bradley 1794-IA16, verify that your system’s power supply and communication adapter are compatible. For new installations, pair it with a terminal base (e.g., 1794-TB3). UBEST Automation stocks genuine Allen-Bradley 1794-IA16 modules and accessories, ensuring fast delivery for your upgrade projects. Contact us for bulk pricing or technical support.