Product Introduction
Part of the MicroLogix 1200 family, the Allen-Bradley 1762-L40BXBR is a compact Programmable Logic Controller (PLC) designed for small to medium automation applications. This controller offers flexible I/O configuration with 40 channels including digital inputs, relay outputs, and FET outputs. With a 24VDC power supply and multiple communication protocols, the 1762-L40BXBR provides a cost-effective and reliable control solution for OEMs and end users.
Technical Specifications
The Allen-Bradley 1762-L40BXBR features the following key specifications:
| Parameter |
Value |
| Power Supply |
24VDC |
| Inputs |
(20) 24V DC + (4) fast 24V DC |
| Outputs |
(8) relay, (7) 24V DC FET, (1) high-speed 24V DC FET |
| Communication Ports |
One (1) 8-Pin mini-DIN serial port; One (1) programming port |
| Supported Protocols |
DF1, DH-485, ASCII, MODBUS |
| Relay Contact Rating |
24-125VDC; 120-240VAC |
| Mechanical Cycles |
20,000,000 |
| Load Current |
10A, minimum |
| Power Consumption |
40 Watts |
| Heat Dissipation |
27.9 Watts |
| Operating Temperature |
0 to 55 degrees Celsius |
| Dimensions (H x W x D) |
90 mm x 160 mm x 87 mm |
| Weight |
1.1 kg (2.4 lb) |
Industry Applications
The 1762-L40BXBR excels in applications requiring reliable digital I/O and simple communication. Typical uses include packaging machinery, conveyor control, material handling, and small process automation. The four fast inputs support high-speed counting, while the relay and FET outputs handle various loads including solenoids, contactors, and indicators. With MODBUS and DF1 protocols, integration with HMIs and SCADA systems is straightforward.
Compatibility & Integration
This controller supports up to six 1762 expansion I/O modules for scalable I/O counts. The embedded 8-pin mini-DIN port provides RS232 communication using DF1 or DH-485 protocols, while the programming port allows direct connection to Rockwell software. The Allen-Bradley 1762-L40BXBR also supports ASCII and MODBUS for interfacing with third-party devices. Panel or DIN rail mounting options enable easy installation in control cabinets.
Selection Guide & Purchasing Advice
Before purchasing, verify that your control system requires a 24VDC power supply and that your I/O count matches the fixed configuration. The 1762-L40BXBR is ideal for upgrading older MicroLogix 1000 systems or as a primary controller for new machines. For reliable sourcing, UBEST Automation (ubest101) offers genuine Allen-Bradley parts with fast shipping. Ensure you have the appropriate programming cable and software (RSLogix 500) for configuration.