Product Overview
Downtime on a production line rarely waits for a purchase order. When a MicroLogix 1200 controller fails, the 1762-L24AWAR from Allen-Bradley is the practical replacement that keeps discrete control running. This sinking and sourcing controller combines 14 AC inputs with 10 relay outputs in a compact package, giving you enough I/O for conveyors, pumps, and interlock logic without adding expansion hardware.
Built by Rockwell Automation, the 1762-L24AWAR belongs to the MicroLogix 1200 series, a platform many plants already know. That familiarity matters when your maintenance team needs to swap a unit and get back online quickly.
Technical Specifications
| Specification | Value |
|---|---|
| Input Power | 120-240V AC |
| Inputs | 14 x 120V AC |
| Outputs | 10 x Relay |
| Mounting Dimensions | 3.5 x 4.33 x 3.43 inches |
| Operating Frequency | 47 to 63 Hz |
| On-State Voltage Range | 79 to 132 Volts AC |
| Off-State Voltage Range | 0 to 20 Volts AC |
| Off-State Leakage Current | 2.5 mA maximum |
| On-State Current | 5 mA at 79 Volts AC (minimum), 12 mA at 120 Volts AC (nominal), 16 mA at 132 Volts AC (maximum) |
| Maximum Inrush Current | 250 mA at 120 Volts AC |
| Maximum Current | 400 mA at 5 Volts DC or 350 mA at 24 Volts DC |
| Isolation | Input group to backplane, output group to backplane, input group to input group, output group to output group, power supply to backplane |
| Programmer/HMI Port | RS-232, DH Full-Duplex |
| UPC | 10781180463836 |
| UNSPSC | 32151705 |
What These Ratings Mean on the Floor
The 120-240V AC input power lets the 1762-L24AWAR run directly from common industrial control voltages without a separate step-down transformer. The 14 AC inputs accept 120V AC signals, so field devices such as pushbuttons, limit switches, and proximity sensors can wire in without interposing relays.
The 10 relay outputs are the workhorse of this controller. Relay contacts handle both AC and DC loads, which gives you flexibility when driving contactors, solenoid valves, and indicator lamps. The on-state voltage range of 79 to 132 Volts AC and off-state range of 0 to 20 Volts AC define a clear switching window, and the 2.5 mA maximum off-state leakage current helps prevent false triggering of sensitive loads.
Current draw is modest: 5 mA at 79 Volts AC minimum, 12 mA at 120 Volts AC nominal, and 16 mA at 132 Volts AC maximum. The 250 mA maximum inrush current at 120 Volts AC is worth noting when specifying circuit protection.
Applications and Integration
In oil and gas facilities, the 1762-L24AWAR fits well in wellhead control panels, tank farm valve sequencing, and pump station interlocks. The relay outputs can switch pilot devices on larger contactors, while the AC inputs read status from field instruments across long cable runs.
On industrial automation lines, this controller handles material handling, packaging, and mixing skids. The RS-232 Programmer/HMI Port provides an HMI or network connection, but note its limits: it supports DH Full-Duplex communications only, it responds to messages rather than initiating them, and its parameters cannot be altered. Plan your network architecture around that behavior.
Integration Note
When wiring into DH networks, you may need an external gateway or connection module. Confirm cable and gateway requirements with your supplier before commissioning.
Selection and Support
Before ordering, verify your existing I/O count, input voltage, and output load types against the 1762-L24AWAR ratings above. If you are replacing a failed unit, match the catalog number exactly to avoid wiring surprises.
Oil AutoTech supplies ready-to-ship spares for oil, gas, and industrial automation applications, with fast dispatch and worldwide delivery. Their team can help you confirm compatibility and get the right controller to your site. Please verify current lifecycle status and availability with Oil AutoTech before ordering.
Contact Oil AutoTech today for pricing and availability.
