Allen-Bradley 1771-OZL Digital Output Module

Essential Technical Specifications

• Manufacturer: Allen-Bradley / Rockwell Automation
• Model Number: 1771-OZL
• Product Series: PLC-5
• Output Type: Dry-Reed Relay Contact (Form A)
• Number of Points: 8 Outputs
• Voltage Range: 0–24V AC or DC
• Current Rating: 100 mA per point (Non-inductive)
• Isolation: Four isolated groups (2 points per group)
• Enclosure Style: Hermetically sealed relays
• Weight: 0.9 kg
• Dimensions: 3.5 x 13.0 x 14.5 cm

Robust Design for Harsh Environments

The 1771-OZL incorporates hermetically sealed relays to protect internal contacts from contaminants. This sealed design prevents oxidation and allows for reliable operation in challenging industrial atmospheres. Moreover, every output point includes a dedicated status indicator on the front panel. These LEDs provide immediate visual confirmation of relay states for efficient field diagnostics.

In addition to its rugged build, the module integrates smoothly into any standard 1771 Universal I/O chassis. It handles low-voltage switching tasks where solid-state leakage current might otherwise interfere with signal accuracy. As a result, the module provides a “true” open circuit when deactivated.

Precision Performance and Maintenance

The low-current rating of 100 mA makes this module ideal for pilot duty and signal-level switching. Technicians can easily monitor system health through the high-visibility diagnostic display. Furthermore, the brand-new condition of this unit ensures it meets all original Rockwell Automation performance benchmarks.

Proper application of the 1771-OZL prevents unintended signal noise in sensitive logic loops. The hardware simplifies the connection between legacy PLC systems and modern digital sensors. Finally, the module’s modular form factor supports rapid replacement to maintain continuous production uptime.