The Allen-Bradley 1734-IA4 is a robust 4-channel discrete input module. It accepts 120VAC sinking signals for POINT I/O systems. This module handles voltages from 85 to 132VAC. It operates reliably at 47 to 63 Hz frequency. Engineers rely on this module for industrial discrete sensing. Its compact size saves valuable cabinet space.
Product Procurement & Buyer Guide
Procurement teams must verify the supply voltage range. The 1734-IA4 requires an external 120VAC nominal power source. That source must stay within 85 to 132VAC. Frequency tolerance is 47 to 63 Hz. Ensure your facility power matches these values.
The module draws only 75 mA from the 5VDC backplane. That low current reduces overall system power load. Use compatible terminal bases like 1734-TB or 1734-TOP. These bases provide secure mechanical and electrical connections. The module uses sink wiring configuration for inputs.
Each of the four input channels is non-isolated. On-state voltage starts at 65VAC minimum. Maximum on-state voltage reaches 132VAC. Off-state voltage must stay below 43VAC. Input current ranges from 4.0 to 8.5 mA. This ensures reliable detection of AC signals.
Key switch position is eight for this module. Weight is only 1.09 ounces. Dimensions are 2.21 x 0.47 x 2.97 inches. These specifications simplify panel layout planning. The module has an open-style enclosure rating.
Step-by-Step User & Installation Guide
First, mount the 1734-IA4 onto a compatible terminal base. Insert it firmly until it locks. Use bases such as 1734-TB, 1734-TBS, 1734-TOP, or 1734-TOPS. Ensure the key switch aligns with position eight. This prevents incorrect insertion.
Next, connect the external AC power supply. Wire the supply to the terminal base terminals. The supply must be 120VAC nominal at 60 Hz. Voltage range is 85 to 132VAC. Frequency range is 47 to 63 Hz.
Then, wire your field input devices to the input channels. Each channel uses sinking configuration. Connect the common to the appropriate terminal. The module accepts four non-isolated inputs. Verify each input with a multimeter before powering the system.
Apply 5VDC backplane power through the POINTBus. The module draws 75 mA maximum. Check the Module status and Network status LEDs. Each input channel has an individual I/O LED. When the channel is energized, the LED lights up.
Test each channel with a known AC signal. The on-state voltage must be above 65VAC. Off-state voltage must stay below 43VAC. If a channel fails to light, check wiring and supply voltage. The module dissipates only 0.50 W at 132VAC.
Logistics & Standard Packaging Details
Express delivery shipping is available via FedEx, UPS, and DHL.
We ship from stock in secure anti-static packaging.
Ensure proper handling to avoid electrostatic discharge damage.
