The 1794-IA8I is a reliable Flex I/O AC digital input module. It delivers eight fully isolated input points for your control system. This module handles a nominal voltage of 120 Volts AC effectively. Its design allows for hot-swapping without shutting down the system. This feature saves valuable time during maintenance and upgrades. It directly connects field devices to the I/O bus. The module works perfectly with ControlNet, DeviceNet, and EtherNet/IP networks. You can mount it easily on a standard DIN rail. This component is ideal for motor control center applications.
Product Procurement & Buyer Guide
Selecting the correct input module is critical for system reliability. The 1794-IA8I offers a specific set of electrical thresholds. It requires a minimum on-state voltage of 65V AC to activate. Its maximum on-state voltage reaches 132V AC for safe operation. The module draws a nominal input current of 12 mA at 120V AC. It also features a maximum off-state voltage of 43V AC to prevent false signals. These specs ensure it works with standard industrial AC power. Procurement managers must verify these values against their field sensors. This module uses a FlexBus current of just 30mA at 5V DC. Its power dissipation stays low at 4.5W under maximum load. This efficiency helps reduce heat inside your control panel. You must pair this module with a compatible terminal base unit. Supported bases include the 1794-TBN, 1794-TB2, and 1794-TB3 models. This modularity allows for flexible system layout and expansion.
Installation Guide for the 1794-IA8I Module
Installing this module is a straightforward process for any technician. First, mount the compatible terminal base onto the DIN rail. Ensure the base locks securely into place before proceeding. Then, align the 1794-IA8I module with the base connector. Slide the module firmly into the terminal base until it clicks. You can perform this step with the system power still active. This hot-swap capability eliminates the need for a system restart. Next, wire your 120V AC field devices to the terminal base. Use screw clamp terminals for secure and reliable connections. The module has 16 yellow LEDs for clear channel status indication. Each LED shows the on/off state of its respective input. This visual feedback simplifies troubleshooting during commissioning. The module operates in temperatures from 0 to 55 degrees Celsius. Its IP20 protection rating makes it suitable for clean indoor environments.
Logistics & Standard Packaging Details
- One (1) Allen-Bradley 1794-IA8I Digital AC Input Module
- Product weight is approximately 2.00 lbs (0.91 kg)
- Module ships in standard anti-static protective packaging
- Express delivery shipping is available via FedEx, UPS, and DHL
