Allen-Bradley 1746-OW16 SLC 500 16-Point Relay Output Module

Description

The 1746-OW16 is a versatile digital relay output module for the Allen-Bradley SLC 500 platform. It features 16 normally-open relay outputs, providing excellent flexibility for controlling a wide array of industrial loads, including both AC and DC devices such as motors, solenoids, and indicator lamps. Its robust design makes it a reliable choice for maintaining and extending the life of existing automation systems.

Specifications

• Manufacturer: Allen-Bradley
• Platform: SLC 500
• Catalog Number: 1746-OW16
• Outputs: 16 Normally Open (N.O.) Relay
• Operating Voltage: 5 to 265V AC / 5 to 125V DC
• Backplane Current at 5V: 85 mA
• Backplane Current at 24V: 180 mA
• Series: D

Label Info

• CAT: 1746-OW16
• SER: D

Application

This module is widely used in manufacturing, material handling, and process control applications that rely on the SLC 500 system. It is ideal for interfacing the PLC with external devices that require higher current or different voltage levels than standard transistor outputs can provide.

Country of Origin

Made in Malaysia.

CO2 Impact

By purchasing this reconditioned item, you are helping to avoid the CO2 emissions associated with new manufacturing, estimated at 16 kg. This is a tangible contribution to a more sustainable industrial environment.

Availability

This item is in stock and ready for immediate dispatch. Order now from PLC2Day for expert support and fast delivery.

FAQ

The 1746-OW16 uses relay outputs, which can switch both AC and DC voltages and provide excellent electrical isolation. The 1746-OA16 uses triac outputs, which are for AC loads only, offer faster switching speeds, and have a longer electronic lifespan but may have a small leakage current.

Yes, in almost all cases, a newer series like D is a direct, form-fit-function replacement for an older series. Newer series typically contain minor hardware revisions that improve performance or sourcing of components but do not affect compatibility.

The 1746-OW16 draws approximately 85mA at 5V DC and 180mA at 24V DC from the backplane. You must include these values in your total power supply budget calculation for the SLC 500 chassis to ensure the power supply is not overloaded.

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Last Update: Friday, March 13, 2026