1734-IA4 120V AC Discrete Sinking Input Module Allen-Bradley

Allen-Bradley 1734-IA4 POINT I/O 120V AC 4-Channel Discrete Input Module

Key Technical Specifications

• The 1734-IA4 provides 4 sinking input channels configured as 1 group of 4. It accepts 120 V AC nominal input voltage with an 85-132 V AC range at 47-63 Hz.
• On-state voltage ranges from 65 V AC minimum to 132 V AC maximum. On-state current spans 4.0 mA at 65 V AC to 8.5 mA at 132 V AC (60 Hz).
• Maximum off-state voltage is 43 V AC with off-state current of 2.7 mA. Nominal input impedance measures 10.6 kΩ for accurate signal detection.
• Backplane current draws 75 mA at 5.1 V DC from the POINTBus. Power dissipation reaches 0.50 W at 132 V AC, with thermal dissipation of 1.71 BTU/hour.
• Isolation voltage is 240 V AC continuous between field-side and system. The module withstands 3250 V DC for 60 seconds during dielectric testing.
• Dimensions are 2.21" x 0.47" x 2.97" (56.0 mm x 12.0 mm x 75.5 mm). It weighs approximately 30.9 g (1.09 oz).

Environmental & Mechanical Specifications

• The 1734-IA4 features an open-style enclosure rating. Operating temperature range is -20 °C to 55 °C (-4 °F to 131 °F).
• Non-condensing relative humidity tolerance spans 5% to 95%. The module withstands industrial vibration and shock standards.
• Wire size accepts 0.25-2.5 mm² or 22-14 AWG copper wire. Terminal screw torque specification is 0.6 Nm (7 lb-in).

Frequently Asked Questions (FAQ)

• How many input channels does the 1734-IA4 have?
  The 1734-IA4 provides 4 non-isolated sinking input channels for 120 V AC signals, each with a dedicated LED status indicator.
• What terminal bases work with this module?
  It mounts on 1734-TB, 1734-TBS, 1734-TOP, or 1734-TOPS wiring base assemblies for secure DIN rail installation.
• What is the input voltage range?
  The module accepts 85-132 V AC at 47-63 Hz, with nominal voltage of 120 V AC at 60 Hz.
• What is the backplane current requirement?
  The 1734-IA4 draws 75 mA at 5.1 V DC from the POINTBus backplane power.
• Does this module require an external power supply?
  Yes, you must connect an external 85-132 V AC power supply for field input power.
• What are the On-state and Off-state specifications?
  On-state voltage ranges from 65-132 V AC with 4.0-8.5 mA current. Maximum Off-state voltage is 43 V AC with 2.7 mA current.
• Is the 1734-IA4 a new original Allen-Bradley part?
  Yes, we supply only brand-new, authentic Allen‑Bradley modules with full manufacturer traceability and warranty support.

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