1762-OW8 | Allen-Bradley | MicroLogix 1200/1500 8-Point Relay Output Module

Product Description

The 1762-OW8 is a high-reliability digital expansion module designed for the Allen-Bradley MicroLogix controller family. Featuring 8 independent relay outputs, this module provides the electromechanical switching capability necessary to interface PLC logic with high-power field devices, including motor starters, solenoid valves, and indicator lamps.

Engineered for seamless integration with MicroLogix 1100, 1200, and 1500 systems, the 1762-OW8 (Ser A/B) offers versatile load handling for both AC and DC circuits. Its compact, DIN-rail mountable design allows for significant I/O expansion without increasing the system's physical footprint, while integrated optical isolation ensures that sensitive controller circuitry remains protected from field-side electrical noise and transients.

Detailed Technical Specifications

• Model Number: 1762-OW8

• Brand: Allen-Bradley / Rockwell Automation

• Number of Outputs: 8 Normally Open (N.O.) Relay Outputs

• Output Type: Electromechanical Relay

• Operating Voltage Range: 5–265V AC / 5–125V DC

• Continuous Current per Point: 2.5 Amps (maximum)

• Maximum Current per Module: 16 Amps

• Backplane Current Draw (5V DC): 80 mA

• Backplane Current Draw (24V DC): 60 mA

• Signal Delay (max): 10 ms (on/off)

• Relay Life (Mechanical): 10,000,000 cycles

• Relay Life (Electrical): 100,000 cycles (at rated load)

• Operating Temperature: 0 to 55 degrees Celsius (32 to 131 degrees Fahrenheit)

• Dimensions: 90 mm x 40.4 mm x 87 mm

• Net Weight: 0.20 kg (0.44 lbs)

Industrial Application Scenarios

The 1762-OW8 is commonly utilized in localized automation cells, such as commercial HVAC systems, automated lighting controls, and small-scale assembly machines. Because it utilizes mechanical relays, it is the ideal choice for applications involving mixed voltage levels or where a physical "dry contact" disconnection is required for safety or signal integrity.

Professional FAQ

• Can I mix AC and DC loads on the same 1762-OW8 module?

  Yes, since each relay contact is isolated from the others (depending on the common grouping), you can control different voltage types across the points, provided you stay within the rated limits of the commons.

• Is there an internal fuse for the relay outputs?

  The 1762-OW8 does not feature internal fusing for its outputs. It is highly recommended to install external fuses or circuit breakers for each output point to protect the relay contacts from overcurrent conditions.