Get now: Allen-Bradley 1769-OW8I Individually Isolated Relay Output
Atlantechdrives provides you the 1769-OW8I, a specialized 8-point relay output module featuring individual channel-to-channel isolation. This module is the ultimate solution for complex industrial environments where outputs must switch completely independent circuits or different phases without any shared electrical common.
- Outputs: 8 Individually Isolated Normally Open (N.O.) Relays
- Isolation: Channel-to-channel and Channel-to-backplane
- Voltage: 5-265V AC / 5-125V DC
- Current Rating: 2.5A per point
- Backplane Current: 125 mA @ 5.1V / 100 mA @ 24V
- Safe State: User-programmable
Technical Superiority: Individual Isolation for Multi-Phase Control
Secure now the 1769-OW8I to eliminate the constraints of shared commons. Unlike the standard OW8, the «I» version provides galvanic isolation between every single output point. This technical superiority allows you to switch 8 different voltages or 8 different phases on the same module (e.g., Phase A on Ch 0, Phase B on Ch 1, 24V DC on Ch 2, etc.) without any risk of short circuits or ground loops. The 1769-OW8I is engineered for applications where electrical separation is mandatory for safety or process requirements, such as interlocking independent power systems or managing remote telemetry units. When you order the 1769-OW8I, you are gaining a high-performance interface that offers the maximum electrical flexibility available in the 1769 Compact I/O family.
Installation Advice: Wiring for Total Separation
When installing the 1769-OW8I, the primary advantage is that each point has its own dedicated pair of terminals (IN and OUT). This prevents the «Common Point Failure» where a single fuse could disable an entire bank of outputs. We recommend using individual fuses for each channel to take full advantage of this isolated architecture. Use high-quality 14 AWG wire for high-current loads and ensure that the wiring duct is organized to prevent cross-talk between different voltage types. Sourcing your 1769-OW8I from Atlantechdrives ensures you receive a unit with healthy isolation transformers and pristine relay contacts, protecting your PLC and your process.
Maintenance and Diagnostic Intelligence
The 1769-OW8I includes 8 amber LEDs on the front panel. Maintenance teams can use these to verify that the logic is reaching the module. If a single channel fails, the individual isolation ensures that the other 7 channels remain perfectly functional, providing a higher level of system availability compared to non-isolated cards. Sourcing an authentic 1769-OW8I from Atlantechdrives guarantees the hardware quality required for mission-critical industrial automation.
FAQs
Q: What is the benefit of the 1769-OW8I over the 1769-OW8?
A: The OW8I has no shared commons; every relay is electrically independent, allowing for mixed voltages and phases on one card.
Q: Does the 1769-OW8I support «Removal and Insertion Under Power» (RIUP)?
A: No, like all 1769 modules, it must be powered down before removal or installation.
Do you need more references from this brand? Explore our full catalog of Allen-Bradley here.
This isolated relay module provides enhanced circuit protection and fits into any rack managed by a 1769-L24ER-QB1B CPU.
