Allen Bradley 1746-OW8 SLC 500 Digital Contact Output Module

The 1746-OW8 is an 8-channel relay output digital module belonging to Allen-Bradley’s SLC™ 500 series (product series: Bul. 1746 / 1747), designed for compact PLC systems. 1746-OW8 features normally open (NO) relay outputs that support both AC and DC loads, making 1746-OW8 highly versatile for industrial control scenarios such as switching motors, solenoids, valves, and indicator lights across diverse power supply environments.

With a wide voltage range compatibility (5–265V AC / 5–125V DC), 1746-OW8 adapts to various industrial power configurations without the need for separate modules for AC and DC loads. 1746-OW8 delivers reliable switching capability with high per-channel and total module current ratings, ensuring stable operation of medium-power devices.

1746-OW8 integrates seamlessly with SLC 500 programmable controllers and supports system expansion with flexible analog and digital I/O card options. 1746-OW8 can be upgraded to distributed I/O using an EtherNet I/P Adapter (1747-AENTR), extending its application in networked industrial systems. Backed by continued support from NHP and Rockwell Automation, including lifecycle management strategies, 1746-OW8 ensures long-term reliability and maintainability in industrial environments.

Core Specifications: 8 digital output channels, relay output type (normally open, AC/DC compatible).

Electrical Parameters: Voltage range 5–265V AC / 5–125V DC. Per-channel maximum rated current 1.5A; module total maximum rated current 16A.

Environmental Adaptability: Operating temperature 0–60°C; storage temperature -40–85°C. Maximum relative humidity 95% (non-condensing).

System Compatibility: Compatible with Allen-Bradley SLC 500 series controllers (SLC50x). Supports expansion with analog/digital I/O cards and conversion to distributed I/O via 1747-AENTR EtherNet I/P Adapter.

Product Support: Backed by NHP and Rockwell Automation’s technical support and lifecycle management services. Related accessories (replacement power supplies, chassis, communication modules) are available.

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