
Product Summary
The 1762-L40BWA is a powerful and compact programmable logic controller from Rockwell Automation. This MicroLogix 1200 unit integrates twenty-four 24VDC inputs with sixteen robust relay outputs. It offers a flexible sinking or sourcing input configuration for various field devices. The controller operates on a wide range of 120 to 240 VAC input power. This makes it an ideal choice for small to medium-sized industrial automation applications.
Theme A: Product Procurement & Buyer Guide
This section helps you understand the commercial value of the 1762-L40BWA. Engineers value its integrated power supply which simplifies panel design. You get a reliable 40-point I/O count in a single compact unit. The 24VDC inputs support both sinking and sourcing wiring configurations. This flexibility reduces the need for additional interface modules. Procurement managers benefit from a single catalog number for a complete control solution.

The unit’s sixteen relay outputs handle loads up to 10A each. They manage devices like contactors, motor starters, and solenoid valves. The relay contacts are rated for 24-125VDC or 120-240VAC. They offer a mechanical life of 20,000,000 cycles, ensuring long service life. This durability minimizes replacement costs over the machine's lifetime.
Communication is a key factor in modern automation. The 1762-L40BWA includes an integrated 8-pin Mini DIN RS232 port. This port supports multiple protocols including DH-485, DF1, and Modbus. It operates in a peer-to-peer configuration for flexible networking. You can use a converter to connect it to an Ethernet network. This allows for easy integration into existing plant architectures.
This controller uses 82 VA of power from the 120-240VAC supply. The inrush current is 25A for 8 ms at 120VAC. This is a critical specification for selecting the right circuit breaker. The unit measures 160mm wide by 90mm high and 87mm deep. Its compact footprint saves valuable space inside your control panel.
Theme B: Step-by-Step Installation Guide

Proper installation ensures the 1762-L40BWA operates reliably for years. Begin by mounting the controller on a standard DIN rail or panel. The height with the DIN latch open is 104mm. Ensure the enclosure maintains an ambient temperature between 0 and 55 degrees Celsius. Use heaters or fans inside the enclosure to regulate the climate. The device requires protection from moisture and excessive dust.
Next, connect the input power to the 120-240VAC terminals. Observe the operating frequency range of 47 to 63 Hertz. Wire your 24VDC input devices to the input terminals marked for sink or source. The unit has 20 standard inputs and 4 fast inputs. Connect your output loads to the 16 relay output terminals. Remember that the relay outputs are dry contacts rated for 10A.
Finally, establish communication via the RS232 port for programming. You can use DF1 protocol for a direct point-to-point link to a PC. For network connectivity, use a 1761-NET-AIC converter for DH-485. This allows the controller to communicate with other devices on the bus. Always wire the earth ground connection first for safety. This step reduces electrical noise and protects the electronics.
Logistics & Standard Packaging Details

- One (1) Allen-Bradley 1762-L40BWA MicroLogix 1200 Controller Module
- One (1) User Manual and Installation Guide
- One (1) Removable Wiring Terminal Block Connectors
- The packaging ensures safe transit for this sensitive electronic device.
- We offer express delivery shipping via FedEx, UPS, and DHL for fast delivery.











