Allen-Bradley 1794-IA8 Flex I/O 8-Channel AC Input Module 120VAC

Allen-Bradley 1794-IA8 Flex I/O 8-Channel AC Input Module

Core Technical Specifications

• Brand: Allen-Bradley
• Model: 1794-IA8 AC Digital Input Module
• Input Channels: 8 non-isolated AC input points
• Input Voltage Range: 65 to 132 Volts AC (120VAC nominal)
• Frequency Range: 47 to 63 Hertz operation
• On-State Current: 7.1 mA minimum, 14.32 mA maximum
• Off-State Voltage: 43 Volts AC maximum
• Nominal Input Current: 12 mA at 120V AC, 60 Hz
• FlexBus Current: 30 mA at 5V DC for backplane power
• Power Dissipation: 4.5 Watts maximum at 132V AC

Compatibility & System Integration

• Network Compatibility: Works with DeviceNet, ControlNet, Profibus DP, and EtherNet/IP adapters
• Terminal Bases: Compatible with 1794-TB3, 1794-TB3S, 1794-TB3K, 1794-TB3SK, 1794-TBN, 1794-TBNK, 1794-TB2, and 1794-TBKD
• Keyswitch Positions: 8 positions for proper module configuration
• Wire Compatibility: Accepts 22 to 12 AWG stranded copper wire

Physical & Environmental Ratings

• Mounting: DIN rail or panel mounting options
• Enclosure Rating: IP20 open-style enclosure
• Operating Temperature: -20 to 55°C for extended range operation
• Storage Temperature: -40 to 85°C for robust storage conditions
• Vibration Resistance: 5g from 10 to 500 Hz per industry standards
• Shock Resistance: 30g operating shock, 50g non-operating shock
• Dimensions: 3.7 x 2.7 x 3.7 inches (94 x 69 x 94 mm)
• Isolation Voltage: 2150V DC for 1 second between system and field

Performance & Response Characteristics

• Status Indicators: 8 yellow LEDs provide individual channel status
• Response Time: 8.4 ms OFF to ON, 26.4 ms ON to OFF default filtering
• Thermal Dissipation: 15.3 BTU/hour maximum at full load
• Relative Humidity: 5 to 95% non-condensing operation
• Input Filtering: Built-in filtering for noise immunity

Frequently Asked Questions (FAQ)

• Q: What is the operating voltage range of the 1794-IA8?
  A: The 1794-IA8 operates from 65 to 132 Volts AC at 47-63 Hz, with 120VAC as the nominal voltage.
• Q: Can I use this module with Ethernet/IP networks?
  A: Yes, the 1794-IA8 is compatible with EtherNet/IP adapters like the 1794-AENT and 1794-AENTR.
• Q: What is the response time of the inputs?
  A: Default filter times are 8.4 ms for OFF to ON transition and 26.4 ms for ON to OFF transition.
• Q: Are the 8 input channels isolated?
  A: No, the 1794-IA8 features 8 non-isolated input channels sharing a common reference.
• Q: What is your shipping and return policy?
  A: We ship within 5 business days worldwide and offer a 30-day satisfaction guarantee on all purchases.

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